使用OKhttp的封装类 进行本地相册或拍照的图片上传显示

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1. 效果图:


2. 在当前app的build.dradle中导入依赖,进行加载:

(1)compile'com.jakewharton:butterknife:7.0.0'           butterknife自动生成控件id

(2)compile'com.squareup.okhttp3:okhttp:3.9.0'           okhttp依赖

(3)compile'com.squareup.okhttp3:logging-interceptor:3.4.2'  封装的okhttp,使用拦截器


3.  页面布局:activity_main.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <RelativeLayout        android:id="@+id/reative_01"        android:layout_width="match_parent"        android:layout_height="wrap_content">        <TextView            android:padding="20dp"            android:text="个人信息"            android:textSize="26sp"            android:id="@+id/text"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerInParent="true"    />        <View            android:background="#000"            android:visibility="visible"            android:layout_height="1dp"            android:layout_below="@+id/text"            android:layout_width="match_parent"></View>    </RelativeLayout>    <RelativeLayout        android:id="@+id/reative_02"        android:layout_below="@+id/reative_01"        android:layout_width="match_parent"        android:layout_height="wrap_content">        <TextView            android:text="头像"            android:padding="20dp"            android:textSize="26sp"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentLeft="true"            android:layout_centerVertical="true"/>        <ImageView            android:padding="20dp"            android:scaleType="fitXY"            android:id="@+id/headPhoto"            android:layout_width="118dp"            android:layout_height="118dp"            android:src="@mipmap/ic_launcher"            android:layout_centerVertical="true"            android:layout_alignParentRight="true" />    </RelativeLayout>    <View        android:background="#000"        android:visibility="visible"        android:layout_height="1dp"        android:layout_below="@+id/reative_02"        android:layout_width="match_parent"></View>    <RelativeLayout        android:id="@+id/reative_03"        android:layout_below="@+id/reative_02"        android:layout_width="match_parent"        android:layout_height="wrap_content">        <TextView            android:text="用户名"            android:padding="20dp"            android:textSize="26sp"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentLeft="true"            android:layout_centerVertical="true"/>        <TextView            android:text="旺哥"            android:padding="20dp"            android:id="@+id/userName"            android:textColor="#a9aab2"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerVertical="true"            android:layout_alignParentRight="true"/>    </RelativeLayout>    <View        android:background="#000"        android:layout_height="1dp"        android:visibility="visible"        android:layout_below="@+id/reative_03"        android:layout_width="match_parent"></View>    <RelativeLayout        android:id="@+id/reative_04"        android:layout_below="@+id/reative_03"        android:layout_width="match_parent"        android:layout_height="wrap_content">        <TextView            android:text="昵称"            android:padding="20dp"            android:textSize="26sp"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentLeft="true"            android:layout_centerVertical="true"/>        <EditText            android:text="问天"            android:padding="20dp"            android:id="@+id/niCheng"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerVertical="true"            android:layout_alignParentRight="true"/>    </RelativeLayout>    <View        android:id="@+id/view"        android:background="#000"        android:visibility="visible"        android:layout_height="1dp"        android:layout_below="@+id/reative_04"        android:layout_width="match_parent"></View>    <Button        android:text="从相册选取"        android:id="@+id/selectPhoto"        android:background="#1E90FF"        android:layout_marginTop="88dp"        android:layout_marginBottom="2dp"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_above="@+id/takePhoto"        android:layout_centerHorizontal="true" />    <Button        android:text="拍照"        android:id="@+id/takePhoto"        android:background="#1E90FF"        android:layout_marginBottom="50dp"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentStart="true"        android:layout_alignParentBottom="true" />    <Button        android:text="取消"        android:id="@+id/cancel"        android:background="#1E90FF"        android:layout_marginTop="88dp"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_alignParentBottom="true"/></RelativeLayout>

4. MainActivity.java  功能代码

import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.support.v7.app.AppCompatActivity;import android.util.Base64;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.ImageView;import android.widget.Toast;import com.bwie.okhttpdesign.okhttputil.OkHttp;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.IOException;import java.util.HashMap;import java.util.Map;import butterknife.Bind;import butterknife.ButterKnife;import butterknife.OnClick;import okhttp3.Request;//个人中心页面public class MainActivity extends AppCompatActivity {    @Bind(R.id.selectPhoto)    Button selectPhoto;    @Bind(R.id.takePhoto)    Button takePhoto;    @Bind(R.id.cancel)    Button cancel;    @Bind(R.id.niCheng)    EditText niCheng;    @Bind(R.id.headPhoto)    ImageView headPhoto;    private static final int PHOTO_REQUEST_CAREMA = 1;// 拍照    private static final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择    private static final int PHOTO_REQUEST_CUT = 3;// 结果    /* 头像名称 */    private static final String PHOTO_FILE_NAME = "headPhoto.jpg";    private File tempFile;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ButterKnife.bind(this);        //从SharedPreferences获取图片        getBitmapFromSharedPreferences();        //重新设置用户昵称        niCheng.setText(niCheng.getText().toString());    }    @OnClick({R.id.headPhoto, R.id.selectPhoto, R.id.takePhoto, R.id.cancel})    public void onViewClicked(View view) {        switch (view.getId()) {            case R.id.takePhoto:                // 激活相机                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");                // 判断存储卡是否可以用,可用进行存储                if (hasSdcard()) {                    tempFile = new File(Environment.getExternalStorageDirectory(), PHOTO_FILE_NAME);                    // 从文件中创建uri                    Uri uri = Uri.fromFile(tempFile);                    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);                }                // 开启一个带有返回值的Activity,请求码为PHOTO_REQUEST_CAREMA                startActivityForResult(intent, PHOTO_REQUEST_CAREMA);                break;            case R.id.selectPhoto:                // 激活系统图库,选择一张图片                Intent intent1 = new Intent(Intent.ACTION_PICK);                intent1.setType("image/*");                // 开启一个带有返回值的Activity,请求码为PHOTO_REQUEST_GALLERY                startActivityForResult(intent1, PHOTO_REQUEST_GALLERY);                break;            case R.id.cancel:                Toast.makeText(MainActivity.this,"已取消操作",Toast.LENGTH_SHORT).show();                break;            default:                break;        }    }    //判断sdcard是否被挂载    private boolean hasSdcard() {        //判断SD卡手否是安装好的   media_mounted        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {            return true;        } else {            return false;        }    }    /*     * 剪切图片     */    private void crop(Uri uri) {        // 裁剪图片意图        Intent intent = new Intent("com.android.camera.action.CROP");        intent.setDataAndType(uri, "image/*");        intent.putExtra("crop", "true");        // 裁剪框的比例,1:1        intent.putExtra("aspectX", 1);        intent.putExtra("aspectY", 1);        // 裁剪后输出图片的尺寸大小        intent.putExtra("outputX", 250);        intent.putExtra("outputY", 250);        intent.putExtra("outputFormat", "JPEG");// 图片格式        intent.putExtra("noFaceDetection", true);// 取消人脸识别        intent.putExtra("return-data", true);        // 开启一个带有返回值的Activity,请求码为PHOTO_REQUEST_CUT        startActivityForResult(intent, PHOTO_REQUEST_CUT);    }    /**     * @param requestCode     * @param resultCode     * @param data     */    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (requestCode == PHOTO_REQUEST_GALLERY) {            // 从相册返回的数据            if (data != null) {                // 得到图片的全路径                Uri uri = data.getData();                crop(uri);            }        } else if (requestCode == PHOTO_REQUEST_CAREMA) {            // 从相机返回的数据            if (hasSdcard()) {                crop(Uri.fromFile(tempFile));            } else {                Toast.makeText(MainActivity.this, "未找到存储卡,无法存储照片!", Toast.LENGTH_SHORT).show();            }        } else if (requestCode == PHOTO_REQUEST_CUT) {            // 从剪切图片返回的数据            if (data != null) {                Bitmap bitmap = data.getParcelableExtra("data");                /**                 * 获得图片                 */                headPhoto.setImageBitmap(bitmap);                //保存到SharedPreferences                saveBitmapToSharedPreferences(bitmap);            }            try {                // 将临时文件删除                tempFile.delete();            } catch (Exception e) {                e.printStackTrace();            }        }        super.onActivityResult(requestCode, resultCode, data);    }    //保存图片到SharedPreferences    private void saveBitmapToSharedPreferences(Bitmap bitmap) {        // Bitmap bitmap=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);        //第一步:将Bitmap压缩至字节数组输出流ByteArrayOutputStream        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();        bitmap.compress(Bitmap.CompressFormat.PNG, 80, byteArrayOutputStream);        //第二步:利用Base64将字节数组输出流中的数据转换成字符串String        byte[] byteArray = byteArrayOutputStream.toByteArray();        String imageString = new String(Base64.encodeToString(byteArray, Base64.DEFAULT));        //第三步:将String保持至SharedPreferences        SharedPreferences sharedPreferences = getSharedPreferences("testSP", Context.MODE_PRIVATE);        SharedPreferences.Editor editor = sharedPreferences.edit();        editor.putString("image", imageString);        editor.commit();        //上传头像        setImgByStr(imageString,"");    }    /**     * 上传头像       此处使用用的OKHttp post请求上传的图片     * @param imgStr     * @param imgName     */    public  void setImgByStr(String imgStr, String imgName) {        String url = "http://appserver。。。。。。。";        Map<String, String> params = new HashMap<String, String>();        params.put("id", "参数值");//        params.put("data", imgStr);        OkHttp.postAsync(url, params, new OkHttp.DataCallBack() {            @Override            public void requestFailure(Request request, IOException e) {                Log.i("上传失败", "失败" + request.toString() + e.toString());            }            @Override            public void requestSuccess(String result) throws Exception {                Log.i("上传成功", result);            }        });    }    //从SharedPreferences获取图片    private void getBitmapFromSharedPreferences(){        SharedPreferences sharedPreferences=getSharedPreferences("testSP", Context.MODE_PRIVATE);        //第一步:取出字符串形式的Bitmap        String imageString=sharedPreferences.getString("image", "");        //第二步:利用Base64将字符串转换为ByteArrayInputStream        byte[] byteArray=Base64.decode(imageString, Base64.DEFAULT);        if(byteArray.length==0){            headPhoto.setImageResource(R.mipmap.ic_launcher);        }else{            ByteArrayInputStream byteArrayInputStream=new ByteArrayInputStream(byteArray);            //第三步:利用ByteArrayInputStream生成Bitmap            Bitmap bitmap= BitmapFactory.decodeStream(byteArrayInputStream);            headPhoto.setImageBitmap(bitmap);        }    }}

5. 封装的OKhttp类

import android.os.Handler;import android.os.Looper;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.HashMap;import java.util.Map;import java.util.concurrent.TimeUnit;import okhttp3.Call;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.RequestBody;import okhttp3.Response;import okhttp3.logging.HttpLoggingInterceptor;/** * 封装的OkHttp类 */public class OkHttp {    //静态实例    private static OkHttp sOkHttpManager;    //okhttpclient实例    private OkHttpClient mClient;    //因为我们请求数据一般都是子线程中请求,在这里我们使用了handler    private Handler mHandler;    //构造方法    private OkHttp() {        //可以通过实现 Logger 接口更改日志保存位置        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);        mClient = new OkHttpClient();        //在这里直接设置连接超时.读取超时,写入超时        OkHttpClient.Builder builder = mClient.newBuilder();        builder.connectTimeout(10, TimeUnit.SECONDS);        builder.readTimeout(10, TimeUnit.SECONDS);        builder.writeTimeout(10, TimeUnit.SECONDS);        builder.addInterceptor(loggingInterceptor);        mClient = builder.build();        /**         * 如果是用的3.0之前的版本  使用以下直接设置连接超时.读取超时,写入超时         */        //client.setConnectTimeout(10, TimeUnit.SECONDS);        //client.setWriteTimeout(10, TimeUnit.SECONDS);        //client.setReadTimeout(30, TimeUnit.SECONDS);        //初始化handler        mHandler = new Handler(Looper.getMainLooper());    }    /**     * 单例模式  获取OkHttp实例     *     * @return     */    public static OkHttp getInstance() {        if (sOkHttpManager == null) {            sOkHttpManager = new OkHttp();        }        return sOkHttpManager;    }    //-------------------------同步的方式请求数据--------------------------    /**     * 对外提供的get方法,同步的方式     * @param url 传入的地址     * @return     */    public static Response getSync(String url) {        //通过获取到的实例来调用内部方法        return sOkHttpManager.inner_getSync(url);    }    /**     * GET方式请求的内部逻辑处理方式,同步的方式     * @param url     * @return     */    private Response inner_getSync(String url) {        Request request = new Request.Builder().url(url).build();        Response response = null;        try {            //同步请求返回的是response对象            response = mClient.newCall(request).execute();        } catch (IOException e) {            e.printStackTrace();        }        return response;    }    /**     * 对外提供的同步获取String的方法     *     * @param url     * @return     */    public static String getSyncString(String url) {        return sOkHttpManager.inner_getSyncString(url);    }    /**     * 同步方法     */    private String inner_getSyncString(String url) {        String result = null;        try {            /**             * 把取得到的结果转为字符串,这里最好用string()             */            result = inner_getSync(url).body().string();        } catch (IOException e) {            e.printStackTrace();        }        return result;    }    //-------------------------异步的方式请求数据--------------------------    public static void getAsync(String url, DataCallBack callBack) {        getInstance().inner_getAsync(url, callBack);    }    /**     * 内部逻辑请求的方法     * @param url     * @param callBack     * @return     */    private void inner_getAsync(String url, final DataCallBack callBack) {        final Request request = new Request.Builder().url(url).build();        mClient.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                deliverDataFailure(request, e, callBack);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                String result = null;                try {                    result = response.body().string();                } catch (IOException e) {                    deliverDataFailure(request, e, callBack);                }                deliverDataSuccess(result, callBack);            }        });    }    /**     * 分发失败的时候调用     * @param request     * @param e     * @param callBack     */    private void deliverDataFailure(final Request request, final IOException e, final DataCallBack callBack) {        /**         * 在这里使用异步处理         */        mHandler.post(new Runnable() {            @Override            public void run() {                if (callBack != null) {                    callBack.requestFailure(request, e);                }            }        });    }    /**     * 分发成功的时候调用     * @param result     * @param callBack     */    private void deliverDataSuccess(final String result, final DataCallBack callBack) {        /**         * 在这里使用异步线程处理         */        mHandler.post(new Runnable() {            @Override            public void run() {                if (callBack != null) {                    try {                        callBack.requestSuccess(result);                    } catch (Exception e) {                        e.printStackTrace();                    }                }            }        });    }    /**     * 数据回调接口     */    public interface DataCallBack {        void requestFailure(Request request, IOException e);        void requestSuccess(String result) throws Exception;    }    //-------------------------提交表单--------------------------    public static void postAsync(String url, Map<String, String> params, DataCallBack callBack) {        getInstance().inner_postAsync(url, params, callBack);    }    private void inner_postAsync(String url, Map<String, String> params, final DataCallBack callBack) {        RequestBody requestBody = null;        if (params == null) {            params = new HashMap<>();        }        /**         * 如果是3.0之前版本的,构建表单数据是下面的一句         */        //FormEncodingBuilder builder = new FormEncodingBuilder();        /**         * 3.0之后版本         */        FormBody.Builder builder = new FormBody.Builder();        /**         * 在这对添加的参数进行遍历,map遍历有四种方式,如果想要了解的可以网上查找         */        for (Map.Entry<String, String> map : params.entrySet()) {            String key = map.getKey().toString();            String value = null;            /**             * 判断值是否是空的             */            if (map.getValue() == null) {                value = "";            } else {                value = map.getValue();            }            /**             * 把key和value添加到formbody中             */            builder.add(key, value);        }        requestBody = builder.build();        //结果返回,添加请求对象,获取数据/*        //下面注释部分代码加上报错但不影响效果,为求效果完美,最好注释        final Request request = new Request.Builder().url(url).post(requestBody).build();        mClient.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                deliverDataFailure(request, e, callBack);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                String result = response.body().string();                deliverDataSuccess(result, callBack);            }        });*/    }    //-------------------------文件下载--------------------------    public static void downloadAsync(String url, String desDir, DataCallBack callBack) {        getInstance().inner_downloadAsync(url, desDir, callBack);    }    /**     * 下载文件的内部逻辑处理类     * @param url      下载地址     * @param desDir   目标地址     * @param callBack     */    private void inner_downloadAsync(final String url, final String desDir, final DataCallBack callBack) {        final Request request = new Request.Builder().url(url).build();        mClient.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                deliverDataFailure(request, e, callBack);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                //在这里进行文件的下载处理                InputStream inputStream = null;                FileOutputStream fileOutputStream = null;                try {                    //文件名和目标地址                    File file = new File(desDir, getFileName(url));                    //把请求回来的response对象装换为字节流                    inputStream = response.body().byteStream();                    fileOutputStream = new FileOutputStream(file);                    int len = 0;                    byte[] bytes = new byte[2048];                    //循环读取数据                    while ((len = inputStream.read(bytes)) != -1) {                        fileOutputStream.write(bytes, 0, len);                    }                    //关闭文件输出流                    fileOutputStream.flush();                    //调用分发数据成功的方法                    deliverDataSuccess(file.getAbsolutePath(), callBack);                } catch (IOException e) {                    //如果失败,调用此方法                    deliverDataFailure(request, e, callBack);                    e.printStackTrace();                } finally {                    if (inputStream != null) {                        inputStream.close();                    }                    if (fileOutputStream != null) {                        fileOutputStream.close();                    }                }            }        });    }    /**     * 根据文件url获取文件的路径名字     * @param url     * @return     */    private String getFileName(String url) {        int separatorIndex = url.lastIndexOf("/");        String path = (separatorIndex < 0) ? url : url.substring(separatorIndex + 1, url.length());        return path;    }}

6. 清单文件中配置权限  AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.bwie.okhttpdesign">    <!--读写获取网络文件的权限-->    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />    <uses-permission android:name="android.permission.INTERNET"/>    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>


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