仿微信用户反馈功能实现

现在的项目要增加一个用户反馈功能，由于是临时提出的需求也没有UI设计，就想到参照微信的设计来实现。
先看微信的效果：

在web端实现的，开始也想过做在web端这样更灵活，但目前的架构还是传统的纯native应用，这么搞太麻烦，估计要捣鼓一段时间，还是就用android端实现。

功能分析

用户点击添加图片按钮后在手机图片库中选择照片，选定后展示出来，最多选择4张，水平排列，一行不够排两行，就想到GridView结合startActivityForResult+ 线程池来实现。因为是上传图片，最好转变为webp格式，再加上像素压缩处理，可以大大的节省用户流量。

流程：
输入文字->startActivityForResult选择照片->onActivityResult中更新GridView->点击提交->弹出等待提示框->创建文件List，文字保存为txt格式，从GridView中取出图片保存为webp格式->线程池上传文件->上传结束关闭等待提示框。

功能实现

想起来简单做起来的时候才发现很多问题，上传图片时想弹出一个含旋转动画的等待提示框（继承DialogFragment），每个线程执行完后得到执行结果，根据结果设置等待提示框的文字，采用ExecutorService.submit() + future.get()实现时发现一个奇怪的现象：从点击提交到上传结束没有看到等待提示框，后来一步步排查问题发现，ExecutorService.submit()之后就会进入future.get()，get()方法会阻塞UI线程，导致无法弹出提示框；当线程池结束才回到UI线程，此时会先处理之前的任务（弹出等待提示框），但由于线程池结束又调用了DialogFragment的dissmiss()方法，等待提示框很快出现又很快消失了。
好吧，由于没有搞懂线程池浪费了大把时间，代码也白写了，但也让我对线程池加深了认识，这一特性大概几年都不会忘了，于是又重新考虑实现方式。

最终的实现方式是自定义一个线程池，用一个循环执行Runnable。
自定义线程池：

    class MyThreadPool extends ThreadPoolExecutor {        private List<File> fileList;        private MyThreadPool(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,                             BlockingQueue<Runnable> workQueue, List<File> files) {            super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);            fileList = files;        }        @Override        protected void beforeExecute(Thread t, Runnable r) {            super.beforeExecute(t, r);        }        @Override        protected void afterExecute(Runnable r, Throwable t) {            super.afterExecute(r, t);        }        @Override        protected void terminated() {            super.terminated();            //当调用shutDown()或者shutDownNow()时会触发该方法，关掉等待框            waitingDialog.dismissAllowingStateLoss();            for (File file:fileList){                deleteOldLogcatFile(getApplicationContext(), file.getName());            }            //必须用looper才能在线程中用toast            Looper.prepare();            if (uploadSucc){                Toast.makeText(getApplicationContext(), "上传完成", Toast.LENGTH_LONG).show();            } else{                Toast.makeText(getApplicationContext(), "上传失败！", Toast.LENGTH_LONG).show();            }            Looper.loop();        }    }

自定义的好处是在线程池结束后可以自定义提示信息，在terminated()中删除了旧文件，并根据每个线程结果提示上传成功还是失败。
调用自定义线程

MyThreadPool myThreadPool = new MyThreadPool(2, 4, 1,                TimeUnit.MINUTES, new ArrayBlockingQueue<Runnable>(fileCount), files);        for (int i = 0; i < fileCount; i++) {            final File file = files.get(i);            Runnable runnable = new Runnable(){                @Override                public void run() {                    int ret = ftpUpload(ftpUrl, fptPort, ftpUserName, ftpPassword, ftpRemotePath, path, file.getName());                    ECMLog.i_ui(CLASS_TAG, "ftpUpload ret: " + ret);                    uploadSucc = ret == FTP_UPLOAD_SUCC;                }            };            myThreadPool.execute(runnable);        }        myThreadPool.shutdown();

还有个效果是点击选择好的图片后放大显示图片，图片下方有个删除图标能删除图片，这也是通过startActivityForResult实现，在onActivityResult中删除GridView中对应图片。

图片处理

startActivityForResult要用两次，一次是添加图片，一次是点击已添加的图片然后重新启动一个activity显示图片，在这个activity中能删除已选择的图片。

图片的压缩处理：onActivityResult拿到图片uri，根据uri得到路径，通过路径加上像素压缩算法得到bitmap，再调用bitmap.compress()得到webp格式的图片文件。

protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (resultCode == RESULT_OK && requestCode == REQUEST_ADD_PIC) {            Uri uri = data.getData();            String picPath = Utils.getFilePathFromUri(getApplicationContext(), uri);            if (picPath == null){                ContentResolver cr = this.getContentResolver();                try {                    mBitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));                } catch (FileNotFoundException e) {                    e.printStackTrace();                }            }else {                mBitmap = Utils.getSmallBitmap(picPath, 480, 800);            }            //加到第一个            mGridViewUris.add(0, uri);            mGridViewDatas.add(0, mBitmap);            mGridViewAdapter=new GridViewAdapter(getApplication(), mGridViewDatas, MAX_UPLOAD_PIC);            mGridView.setAdapter(mGridViewAdapter);            mGridViewAdapter.notifyDataSetChanged();        }else if (resultCode == RESULT_OK && requestCode == REQUEST_SHOW_PIC){            int position = data.getIntExtra(PIC_POSITION, 0);            mGridViewDatas.remove(position);            mGridViewUris.remove(position);            mGridViewAdapter=new GridViewAdapter(getApplication(), mGridViewDatas, MAX_UPLOAD_PIC);            mGridView.setAdapter(mGridViewAdapter);            mGridViewAdapter.notifyDataSetChanged();        }        //包含添加图片        int totalPictures = mGridViewDatas.size();        currentPicTV.setText(String.valueOf(totalPictures - 1));    }public static String getFilePathFromUri(final Context context, final Uri uri) {//        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;        // DocumentProvider        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {            if (DocumentsContract.isDocumentUri(context, uri)) {                // ExternalStorageProvider                if (isExternalStorageDocument(uri)) {                    final String docId = DocumentsContract.getDocumentId(uri);                    final String[] split = docId.split(":");                    final String type = split[0];                    if ("primary".equalsIgnoreCase(type)) {                        return Environment.getExternalStorageDirectory() + "/" + split[1];                    }                }                // DownloadsProvider                else if (isDownloadsDocument(uri)) {                    final String id = DocumentsContract.getDocumentId(uri);                    final Uri contentUri = ContentUris.withAppendedId(                            Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));                    return getDataColumn(context, contentUri, null, null);                }                // MediaProvider                else if (isMediaDocument(uri)) {                    final String docId = DocumentsContract.getDocumentId(uri);                    final String[] split = docId.split(":");                    final String type = split[0];                    Uri contentUri = null;                    if ("image".equals(type)) {                        contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;                    } else if ("video".equals(type)) {                        contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;                    } else if ("audio".equals(type)) {                        contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;                    }                    final String selection = "_id=?";                    final String[] selectionArgs = new String[] { split[1] };                    return getDataColumn(context, contentUri, selection, selectionArgs);                }            } else if ("content".equalsIgnoreCase(uri.getScheme())) {                // Return the remote address                if (isGooglePhotosUri(uri))                    return uri.getLastPathSegment();                return getDataColumn(context, uri, null, null);            } else if ("file".equalsIgnoreCase(uri.getScheme())) {                return uri.getPath();            }        }        return null;    }//根据路径获得图片并压缩，返回bitmap用于显示    public static Bitmap getSmallBitmap(String filePath, int reqWidth, int reqHeight) {        final BitmapFactory.Options options = new BitmapFactory.Options();        options.inJustDecodeBounds = true;        BitmapFactory.decodeFile(filePath, options);//        options.inSampleSize = calculateInSampleSize(options, 480, 800);        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);        options.inJustDecodeBounds = false;        return BitmapFactory.decodeFile(filePath, options);    }    //计算图片的缩放值    private static int calculateInSampleSize(BitmapFactory.Options options,int reqWidth, int reqHeight) {        final int height = options.outHeight;        final int width = options.outWidth;        int inSampleSize = 1;        if (height > reqHeight || width > reqWidth) {            final int heightRatio = Math.round((float) height/ (float) reqHeight);            final int widthRatio = Math.round((float) width / (float) reqWidth);            inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;        }        return inSampleSize;    }

通过以上方式，一个截图文件原始大小300KB，被压缩到10KB。

下面是完整代码
自定义GridView适配器：

package com.cetcs.ecmapplication.innerclass;import android.app.Application;import android.graphics.Bitmap;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.RelativeLayout;import com.cetcs.ecmapplication.R;import com.cetcs.ecmcommon.ECMLog;import com.cetcs.ecmcommon.GlobalData;import java.util.List;public class GridViewAdapter extends BaseAdapter {    private String CLASS_TAG = getClass().getCanonicalName();    private List<Bitmap> mList;    LayoutInflater mLayoutInflater;    private ImageView mImageView;    private Application mAppllication;    private int mSize;    public GridViewAdapter(Application application, List<Bitmap> list, int size){        mAppllication = application;        mList = list;        mLayoutInflater = LayoutInflater.from(application);        mSize = size;    }    @Override    public int getCount() {        return mList.size();    }    @Override    public Object getItem(int position) {        return mList.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ECMLog.i_ui(CLASS_TAG, "position: " + position + " mList size: " + mList.size());        convertView = mLayoutInflater.inflate(R.layout.gridviewlayout, null);        mImageView = (ImageView) convertView.findViewById(R.id.ItemImage);        mImageView.setImageBitmap(mList.get(position));        GlobalData globalData = (GlobalData) mAppllication;        RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) mImageView.getLayoutParams();        layoutParams.height = 240 * globalData.mScreenHeight / 1920;        layoutParams.width = 240 * globalData.mScreenWidth / 1080;        mImageView.setLayoutParams(layoutParams);        return convertView;    }}

gridviewlayout.xml:

<?xml version="1.0" encoding="utf-8"?><RelativeLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_height="wrap_content"    android:paddingBottom="4dip" android:layout_width="fill_parent">    <ImageView        android:layout_height="wrap_content"        android:id="@+id/ItemImage"        android:layout_width="wrap_content"        android:layout_centerHorizontal="true">    </ImageView></RelativeLayout>

activity的layout
activity_feedback.xml:

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    xmlns:RoundCornerTextView="http://schemas.android.com/apk/res-auto"    android:id="@+id/activity_feedback"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:background="#f0f0f0"    tools:context="com.cetcs.ecmapplication.FeedbackActivity">    <TextView        android:id="@+id/titleTV"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="反馈和意见"        android:layout_marginStart="10dp"        android:layout_marginBottom="10dp"        />    <RelativeLayout        android:id="@+id/textviewLayout"        android:layout_below="@id/titleTV"        android:layout_width="match_parent"        android:background="@color/white"        android:layout_height="wrap_content">        <EditText            android:id="@+id/feedbackET"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:hint="请填写10个以上的问题描述"            android:background="@color/white"            android:paddingStart="10dp"            android:paddingEnd="10dp" />        <TextView            android:id="@+id/allowedTV"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentBottom="true"            android:layout_alignParentEnd="true"            android:layout_marginEnd="10dp"            android:text="/200"/>        <TextView            android:id="@+id/currentNumberTV"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentBottom="true"            android:layout_toStartOf="@id/allowedTV"            android:text="0"/>    </RelativeLayout>    <RelativeLayout        android:id="@+id/pictureLayout"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="@color/white"        android:paddingTop="10dp"        android:paddingBottom="10dp"        android:layout_below="@id/textviewLayout">        <TextView            android:id="@+id/pictureTV"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginStart="10dp"            android:textColor="@color/black"            android:text="图片（问题截图，选填）"/>        <TextView            android:id="@+id/allowedPicTV"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentEnd="true"            android:layout_marginEnd="10dp"            android:text="/4"/>        <TextView            android:id="@+id/currentPicTV"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_toStartOf="@id/allowedPicTV"            android:text="0"/>        <GridView            android:id="@+id/gridview"            android:layout_marginTop="10dp"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_below="@id/pictureTV"            android:numColumns="3"            android:verticalSpacing="10dp"            android:horizontalSpacing="10dp"            android:columnWidth="90dp"            android:stretchMode="columnWidth"            android:gravity="center">        </GridView>    </RelativeLayout>    <TextView        android:id="@+id/telTV"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/pictureLayout"        android:layout_marginTop="10dp"        android:layout_marginBottom="10dp"        android:text="联系电话"        android:layout_marginStart="10dp"        />    <EditText        android:id="@+id/telET"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_below="@id/telTV"        android:background="@color/white"        android:paddingStart="10dp"        android:paddingEnd="10dp"        android:hint="选填"/>    <!--自定义控件，圆角button-->    <acxingyun.cetcs.com.roundconertextview.RoundConerTextView        android:id="@+id/submitBT"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_centerHorizontal="true"        android:layout_marginTop="10dp"        android:layout_marginBottom="10dp"        android:layout_marginStart="10dp"        android:layout_marginEnd="10dp"        RoundCornerTextView:Text="@string/tijiao"        RoundCornerTextView:BackgroundColor="@color/roundconerunpressed"        RoundCornerTextView:ConerRadius="5dp"        RoundCornerTextView:TextColor="@android:color/white"        RoundCornerTextView:pressedColor="@color/finish_pressed"        RoundCornerTextView:unPressedColor="@color/finish_unpressed"        /></RelativeLayout>

FeedbackActivity

package com.cetcs.ecmapplication;import android.content.ContentResolver;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.net.Uri;import android.os.Bundle;import android.os.Looper;import android.text.Editable;import android.text.TextWatcher;import android.view.KeyEvent;import android.view.View;import android.view.Window;import android.widget.AdapterView;import android.widget.EditText;import android.widget.GridView;import android.widget.RelativeLayout;import android.widget.TextView;import android.widget.Toast;import com.cetcs.ecmapplication.dialog.WaitingDialog;import com.cetcs.ecmapplication.innerclass.GridViewAdapter;import com.cetcs.ecmcommon.ECMActivity;import com.cetcs.ecmcommon.ECMLog;import com.cetcs.ecmcommon.GlobalData;import com.cetcs.ecmcommon.Utils;import com.cetcs.jniencardmanager.JniCardLoginedInfo;import com.cetcs.jniencardmanager.JniCardUnloginInfo;import com.cetcs.jniencardmanager.JniEnCardManager;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.List;import java.util.Locale;import java.util.concurrent.ArrayBlockingQueue;import java.util.concurrent.BlockingQueue;import java.util.concurrent.Callable;import java.util.concurrent.ExecutionException;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.concurrent.Future;import java.util.concurrent.ThreadPoolExecutor;import java.util.concurrent.TimeUnit;import acxingyun.cetcs.com.roundconertextview.RoundConerTextView;import static android.util.TypedValue.COMPLEX_UNIT_PX;import static com.cetcs.ecmcommon.Constants.FTP_UPLOAD_SUCC;import static com.cetcs.logreport.LogcatUploaderUtils.appendStringToFile;import static com.cetcs.logreport.LogcatUploaderUtils.deleteOldLogcatFile;import static com.cetcs.logreport.LogcatUploaderUtils.ftpUpload;import static com.cetcs.logreport.LogcatUploaderUtils.writeStringToFile;public class FeedbackActivity extends ECMActivity {    private final String CLASS_TAG = this.getClass().getSimpleName();    private RelativeLayout textviewLayout;    private RelativeLayout pictureLayout;    private EditText telET;    private TextView currentPicTV;    private RoundConerTextView submitBT;    private EditText feedbackET;    private TextWatcher watcher;    private TextView currentNumberTV;    private List<Bitmap> mGridViewDatas;    private List<Uri> mGridViewUris;    private GridView mGridView;    private GridViewAdapter mGridViewAdapter;    private Bitmap mBitmap;    private static int REQUEST_ADD_PIC = 1;    private static int REQUEST_SHOW_PIC = 2;    private static int MAX_UPLOAD_PIC = 4;    private static String SHOW_PIC_URI = "show_pic_full_screen";    private static String PIC_POSITION = "picture_position";    private WaitingDialog waitingDialog;    private static final String ftpUrl = xxxxx.xxxxx.xxxxx;    private static final String fptPort = xxxx;    private static final String ftpUserName = xxxx;    private static final String ftpPassword = xxxx;    private static final String ftpRemotePath = "/aaa/bbb";    private boolean uploadSucc = false;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);//取消标题栏        setContentView(R.layout.activity_feedback);        initViews();        initLayoutParameters();    }    private void initViews(){        textviewLayout = (RelativeLayout) findViewById(R.id.textviewLayout);        pictureLayout = (RelativeLayout) findViewById(R.id.pictureLayout);        telET = (EditText) findViewById(R.id.telET);        submitBT = (RoundConerTextView) findViewById(R.id.submitBT);        feedbackET = (EditText) findViewById(R.id.feedbackET);        currentNumberTV = (TextView) findViewById(R.id.currentNumberTV);        //监控输入字数        watcher = new TextWatcher() {            @Override            public void onTextChanged(CharSequence s, int start, int before, int count) {                // TODO Auto-generated method stub            }            @Override            public void beforeTextChanged(CharSequence s, int start, int count,                                          int after) {                // TODO Auto-generated method stub            }            @Override            public void afterTextChanged(Editable s) {                // TODO Auto-generated method stub                int len = feedbackET.getText().length();                ECMLog.i_ui(CLASS_TAG, "onTextChanged len:" + len);                if (len >= 200){                    currentNumberTV.setText(String.valueOf(len));                    currentNumberTV.setTextColor(getResources().getColor(R.color.deep_orange));                }else {                    currentNumberTV.setTextColor(getResources().getColor(R.color.black));                    currentNumberTV.setText(String.valueOf(len));                }            }        };        feedbackET.addTextChangedListener(watcher);        mGridView=(GridView) findViewById(R.id.gridview);        mGridViewDatas = new ArrayList<>();        mGridViewUris = new ArrayList<>();        Bitmap addBitmap = Utils.getInstance().readBitmap(getApplicationContext(), R.drawable.add_pic);        mGridViewDatas.add(0, addBitmap);        mGridViewUris.add(0, new Uri.Builder().build());        mGridViewAdapter = new GridViewAdapter(getApplication(), mGridViewDatas, MAX_UPLOAD_PIC);        mGridView.setAdapter(mGridViewAdapter);        mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                int pictureNumber = mGridViewDatas.size();                ECMLog.i_ui(CLASS_TAG,"position: " + position + " pictureNumber: " + pictureNumber);                if (position == pictureNumber - 1){                    if (pictureNumber < MAX_UPLOAD_PIC + 1){                        chosePictureFromPhone();                    }                }else {                    Uri uri = mGridViewUris.get(position);                    Intent intent = new Intent(FeedbackActivity.this, PicShowerActivity.class);                    intent.putExtra(SHOW_PIC_URI, uri.toString());                    intent.putExtra(PIC_POSITION, position);                    startActivityForResult(intent, REQUEST_SHOW_PIC);                }            }        });        submitBT.setOnTouchCallback(new RoundConerTextView.onTouchCallback() {            @Override            public void onRoundTextViewTouched() {                if (feedbackET.getText().length() == 0){                    Toast.makeText(getApplicationContext(), "请输入您的建议", Toast.LENGTH_SHORT).show();                    return;                }                if (feedbackET.getText().length() > 200){                    Toast.makeText(getApplicationContext(), "请输入200字以内建议", Toast.LENGTH_SHORT).show();                    return;                }                waitingDialog = new WaitingDialog();                waitingDialog.setCancelable(false);                waitingDialog.show(getFragmentManager(), getString(R.string.zhengzaishangchaunqingshaohou));                List<File> list = creatFilesThread();                if (list == null){                    waitingDialog.dismissAllowingStateLoss();                    Toast.makeText(getApplicationContext(), "网络不可用！", Toast.LENGTH_SHORT).show();                    return;                }                ExecutorServiceThread(list);            }        });    }    private void initLayoutParameters(){        GlobalData globalDate = (GlobalData) getApplication();        RelativeLayout.LayoutParams layoutparam = (RelativeLayout.LayoutParams) textviewLayout.getLayoutParams();        layoutparam.height = 350 * globalDate.mScreenHeight / 1920;        textviewLayout.setLayoutParams(layoutparam);        //反馈和意见        TextView titleTV = (TextView) findViewById(R.id.titleTV);        titleTV.setTextSize(COMPLEX_UNIT_PX, 40 * globalDate.mScreenHeight / 1920);        //反馈文字        feedbackET = (EditText) findViewById(R.id.feedbackET);        feedbackET.setTextSize(COMPLEX_UNIT_PX, 50 * globalDate.mScreenHeight / 1920);        //200        TextView allowedTV = (TextView) findViewById(R.id.allowedTV);        allowedTV.setTextSize(COMPLEX_UNIT_PX, 40 * globalDate.mScreenHeight / 1920);        //字数        TextView currentNumberTV = (TextView) findViewById(R.id.currentNumberTV);        currentNumberTV.setTextSize(COMPLEX_UNIT_PX, 40 * globalDate.mScreenHeight / 1920);        layoutparam = (RelativeLayout.LayoutParams) pictureLayout.getLayoutParams();        layoutparam.height = 430 * globalDate.mScreenHeight / 1920;        layoutparam.topMargin = 60 * globalDate.mScreenHeight / 1920;        pictureLayout.setLayoutParams(layoutparam);        TextView pictureTV = (TextView) findViewById(R.id.pictureTV);        pictureTV.setTextSize(COMPLEX_UNIT_PX, 46 * globalDate.mScreenHeight / 1920);        TextView allowedPicTV = (TextView) findViewById(R.id.allowedPicTV);        allowedPicTV.setTextSize(COMPLEX_UNIT_PX, 40 * globalDate.mScreenHeight / 1920);        currentPicTV = (TextView) findViewById(R.id.currentPicTV);        currentPicTV.setTextSize(COMPLEX_UNIT_PX, 40 * globalDate.mScreenHeight / 1920);        TextView telTV = (TextView) findViewById(R.id.telTV);        telTV.setTextSize(COMPLEX_UNIT_PX, 40 * globalDate.mScreenHeight / 1920);        telET = (EditText) findViewById(R.id.telET);        telET.setTextSize(COMPLEX_UNIT_PX, 50 * globalDate.mScreenHeight / 1920);        layoutparam = (RelativeLayout.LayoutParams) telET.getLayoutParams();        layoutparam.height = 128 * globalDate.mScreenHeight / 1920;        telET.setLayoutParams(layoutparam);        if (globalDate.getChannelName().equals("westone")){            submitBT.setBackgroundColor(getResources().getColor(R.color.westonewanchengzhengchang));            submitBT.setPressedColor(getResources().getColor(R.color.westonewanchengdianji));            submitBT.setUnPressedColor(getResources().getColor(R.color.westonewanchengzhengchang));        }        submitBT.setWidth(990 * globalDate.mScreenWidth / 1080);        submitBT.setHeight(135 * globalDate.mScreenHeight / 1920);        submitBT.setTextSize(60 * globalDate.mScreenHeight / 1920);        submitBT.invalidate();    }    private void chosePictureFromPhone(){        Intent intent = new Intent();        /* 开启Pictures画面Type设定为image */        intent.setType("image/*");        /* 使用Intent.ACTION_GET_CONTENT这个Action */        intent.setAction(Intent.ACTION_GET_CONTENT);        /* 取得相片后返回本画面 */        startActivityForResult(intent, REQUEST_ADD_PIC);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (resultCode == RESULT_OK && requestCode == REQUEST_ADD_PIC) {            Uri uri = data.getData();            String picPath = Utils.getFilePathFromUri(getApplicationContext(), uri);            if (picPath == null){                ContentResolver cr = this.getContentResolver();                try {                    mBitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));                } catch (FileNotFoundException e) {                    e.printStackTrace();                }            }else {                mBitmap = Utils.getSmallBitmap(picPath, 480, 800);            }            //加到第一个            mGridViewUris.add(0, uri);            mGridViewDatas.add(0, mBitmap);            mGridViewAdapter=new GridViewAdapter(getApplication(), mGridViewDatas, MAX_UPLOAD_PIC);            mGridView.setAdapter(mGridViewAdapter);            mGridViewAdapter.notifyDataSetChanged();        }else if (resultCode == RESULT_OK && requestCode == REQUEST_SHOW_PIC){            int position = data.getIntExtra(PIC_POSITION, 0);            mGridViewDatas.remove(position);            mGridViewUris.remove(position);            mGridViewAdapter=new GridViewAdapter(getApplication(), mGridViewDatas, MAX_UPLOAD_PIC);            mGridView.setAdapter(mGridViewAdapter);            mGridViewAdapter.notifyDataSetChanged();        }        //包含添加图片        int totalPictures = mGridViewDatas.size();        currentPicTV.setText(String.valueOf(totalPictures - 1));    }    private List<File> creatUploadFiles(){        //包含文本、图片        List<File> fileList = new ArrayList<>();        File suggestFile = creatSuggestionFile();        if (suggestFile != null){            String tel = telET.getText().toString();            if (tel.length() > 0){                tel = "\n" + "tel:" + tel;                appendStringToFile(getApplicationContext(), suggestFile.getName(), tel);            }            fileList.add(suggestFile);        }        //不包括添加图片        int picCount = mGridViewDatas.size() - 1;        for (int i = 0;i < picCount;i++){            //phoneNumber_tfNumber_20170101010101_1            String bitmapFileName = getFileName() + "_" + i + ".webp";            Bitmap bitmap = mGridViewDatas.get(i);            File bitmapFile = saveBitmapToFile(bitmap, bitmapFileName);            fileList.add(bitmapFile);        }        return fileList;    }    /**     * phoneNumber_tfNumber_time     * 没有后缀     * @return     */    private String getFileName(){        String fileName;        String phoneNumber = "";        String tfNumber = "";        String time = "";        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss", Locale.getDefault());        time = sdf.format(new Date());        ..............        fileName = phoneNumber +"_" + tfNumber +"_" + time;        return fileName;    }    private File creatSuggestionFile(){        String fileName;        fileName = getFileName() + ".txt";        String path = getApplicationContext().getFilesDir().getAbsolutePath();        File file = new File(path, fileName);        //保存String为文件        writeStringToFile(getApplication(), feedbackET.getText().toString(), file.getName());        return file;    }    private File saveBitmapToFile(Bitmap bitmap, String fileName){        String path = getApplicationContext().getFilesDir().getAbsolutePath();        File file = new File(path, fileName);        if(file.exists()){            file.delete();        }        FileOutputStream out;        try{            out = new FileOutputStream(file);            if(bitmap.compress(Bitmap.CompressFormat.WEBP, 50, out))            {                out.flush();                out.close();            }        }        catch (FileNotFoundException e)        {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return file;    }    private List<File> creatFilesThread(){        List<File> fileList = null;        ExecutorService cacheThreadExecutor = Executors.newSingleThreadExecutor();        Future<List<File>> future = cacheThreadExecutor.submit(new preUploadTask());        try {            fileList = future.get();        } catch (InterruptedException e) {            e.printStackTrace();        } catch (ExecutionException e) {            e.printStackTrace();        }        return fileList;    }    private void ExecutorServiceThread(List<File> files) {        final String path = getApplicationContext().getFilesDir().getAbsolutePath();        int fileCount = files.size();        MyThreadPool myThreadPool = new MyThreadPool(2, 4, 1,                TimeUnit.MINUTES, new ArrayBlockingQueue<Runnable>(fileCount), files);        for (int i = 0; i < fileCount; i++) {            final File file = files.get(i);            Runnable runnable = new Runnable(){                @Override                public void run() {                    int ret = ftpUpload(ftpUrl, fptPort, ftpUserName, ftpPassword, ftpRemotePath, path, file.getName());                    ECMLog.i_ui(CLASS_TAG, "ftpUpload ret: " + ret);                    uploadSucc = ret == FTP_UPLOAD_SUCC;                }            };            myThreadPool.execute(runnable);        }        myThreadPool.shutdown();        }    class preUploadTask implements Callable<List<File>>{        @Override        public List<File> call() throws Exception {            if (!Utils.ping()){                return null;            }            return creatUploadFiles();        }    }    class MyThreadPool extends ThreadPoolExecutor {        private List<File> fileList;        private MyThreadPool(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,                             BlockingQueue<Runnable> workQueue, List<File> files) {            super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);            fileList = files;        }        @Override        protected void beforeExecute(Thread t, Runnable r) {            super.beforeExecute(t, r);        }        @Override        protected void afterExecute(Runnable r, Throwable t) {            super.afterExecute(r, t);        }        @Override        protected void terminated() {            super.terminated();            //当调用shutDown()或者shutDownNow()时会触发该方法            waitingDialog.dismissAllowingStateLoss();            for (File file:fileList){                deleteOldLogcatFile(getApplicationContext(), file.getName());            }            //必须用looper才能在线程中用toast            Looper.prepare();            if (uploadSucc){                Toast.makeText(getApplicationContext(), "上传完成", Toast.LENGTH_LONG).show();            } else{                Toast.makeText(getApplicationContext(), "上传失败！", Toast.LENGTH_LONG).show();            }            Looper.loop();        }    }    @Override    public boolean onKeyDown(int keyCode, KeyEvent event) {        return super.onKeyDown(keyCode, event);    }    @Override    protected void onDestroy() {        if (mBitmap != null &&!mBitmap.isRecycled()){            mBitmap.recycle();            mBitmap = null;        }        mGridView = null;        super.onDestroy();    }/**     * 通过ftp上传文件     * @param url ftp服务器地址 如： 192.168.1.110     * @param port 端口如 ： 21     * @param username  登录名     * @param password   密码     * @param remotePath  上到ftp服务器的磁盘路径     * @param fileNamePath  要上传的文件路径     * @param fileName      要上传的文件名     * @return     */    public static int ftpUpload(String url, String port, String username,String password, String remotePath, String fileNamePath,String fileName) {        ECMLog.i_ecm(CLASS_TAG, "ftpUpload called,fileName: " + fileName);        FTPClient ftpClient = new FTPClient();        FileInputStream fis = null;        int result = 0;        try {            ftpClient.setConnectTimeout(5 * 1000);            ftpClient.connect(url, parseInt(port));            ECMLog.i_ecm(CLASS_TAG, "connected...");            boolean loginResult = ftpClient.login(username, password);            int returnCode = ftpClient.getReplyCode();            ECMLog.i_ecm(CLASS_TAG, "ftp returnCode: " + returnCode);            if (loginResult && FTPReply.isPositiveCompletion(returnCode)) {// 如果登录成功                ftpClient.makeDirectory(remotePath);                // 设置上传目录                ftpClient.changeWorkingDirectory(remotePath);                ftpClient.setBufferSize(1024);                if (fileName.endsWith(".png") || fileName.endsWith(".webp") || fileName.endsWith(".jpeg")){                    //上传上去的图片数据格式（）一定要写这玩意，不然在服务器就打不开了                    ftpClient.setFileType(FTP.BINARY_FILE_TYPE);                }                ftpClient.setControlEncoding("UTF-8");                ftpClient.enterLocalPassiveMode();                fis = new FileInputStream(fileNamePath + "/" + fileName);                ftpClient.storeFile(fileName, fis);                result = FTP_UPLOAD_SUCC;   //上传成功            } else {// 如果登录失败                result = FTP_LOGIN_ERR;            }        } catch (IOException e) {            ECMLog.e_ecm(CLASS_TAG, "ftp err...");            e.printStackTrace();            result = FTP_CLIENT_ERR;//            throw new RuntimeException("FTP客户端出错！", e);        } finally {            try {                ftpClient.disconnect();            } catch (IOException e) {                e.printStackTrace();            }        }        return result;    }}

展示图片的activity,PicShowerActivity:

package com.cetcs.ecmapplication;import android.content.ContentResolver;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.net.Uri;import android.os.Bundle;import android.view.View;import android.view.Window;import android.widget.ImageView;import android.widget.RelativeLayout;import com.cetcs.ecmapplication.dialog.ActionConfirmActivity;import com.cetcs.ecmcommon.Constants;import com.cetcs.ecmcommon.ECMActivity;import com.cetcs.ecmcommon.ECMLog;import com.cetcs.ecmcommon.GlobalData;import com.cetcs.ecmcommon.Utils;import java.io.FileNotFoundException;import static com.cetcs.ecmcommon.Constants.ACTIONCONFIRM_ACTIVITY_DELETE_PIC;public class PicShowerActivity extends ECMActivity {    private ImageView mShowedIV;    private ImageView mDeleteIV;    private static String SHOW_PIC_URI = "show_pic_full_screen";    private final String CLASS_TAG = this.getClass().getSimpleName();    private static String PIC_POSITION = "picture_position";    private int picPosition;    private Bitmap mBitmap;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        ECMLog.i_ui(CLASS_TAG, "onCreate called...");        requestWindowFeature(Window.FEATURE_NO_TITLE);//取消标题栏        setContentView(R.layout.activity_pic_shower);        initViews();        initLayoutParameters();    }    private void initViews(){        mShowedIV = (ImageView) findViewById(R.id.mShowedIV);        mDeleteIV = (ImageView) findViewById(R.id.mDeleteIV);        Intent intent = getIntent();        if (intent != null){            //position            picPosition = intent.getIntExtra(PIC_POSITION, 0);            ECMLog.i_ui(CLASS_TAG, "picPosition: " + picPosition);            //Uri            String uriString = intent.getStringExtra(SHOW_PIC_URI);            Uri uri = Uri.parse(uriString);            mBitmap = null;            String picPath = Utils.getFilePathFromUri(getApplicationContext(), uri);            if (picPath == null){                ContentResolver cr = this.getContentResolver();                try {                    mBitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));                } catch (FileNotFoundException e) {                    e.printStackTrace();                }            }else {                mBitmap = Utils.getSmallBitmap(picPath, 480, 800);            }            mShowedIV.setImageBitmap(mBitmap);        }        mDeleteIV.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Intent intent1 = new Intent(PicShowerActivity.this, ActionConfirmActivity.class);                intent1.putExtra(Constants.KEY_INFORMATIONTYPE, ACTIONCONFIRM_ACTIVITY_DELETE_PIC);                intent1.putExtra(Constants.KEY_INFORMATION, getString(R.string.quedingshanchutupian));                startActivityForResult(intent1, ACTIONCONFIRM_ACTIVITY_DELETE_PIC);            }        });        mShowedIV.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                setResult(RESULT_CANCELED);                finish();            }        });    }    private void initLayoutParameters(){        GlobalData globalData = (GlobalData) getApplication();        RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) mShowedIV.getLayoutParams();        layoutParams.width = 800 * globalData.mScreenWidth / 1080;        layoutParams.height = 1400 * globalData.mScreenHeight / 1920;        mShowedIV.setLayoutParams(layoutParams);        layoutParams = (RelativeLayout.LayoutParams) mDeleteIV.getLayoutParams();        layoutParams.height = 68 * globalData.mScreenHeight / 1920;        layoutParams.width = 68 * globalData.mScreenWidth / 1080;        mDeleteIV.setLayoutParams(layoutParams);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (requestCode == ACTIONCONFIRM_ACTIVITY_DELETE_PIC && resultCode == RESULT_OK){            Intent intent = new Intent();            intent.putExtra(PIC_POSITION, picPosition);            setResult(RESULT_OK, intent);            finish();        }    }    @Override    protected void onDestroy() {        if (!mBitmap.isRecycled()){            mBitmap.recycle();            mBitmap = null;        }        mShowedIV.setImageBitmap(null);        mDeleteIV.setImageBitmap(null);        super.onDestroy();    }}

最终效果

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写这篇文章主要目的还是记录和总结一些开发经验，争取以后每开发一个功能写一篇博客。