android 点击切换头像图片

来源：互联网发布：c 高级编程第9版编辑：程序博客网时间：2024/06/05 14:57

使用avatarPick插件

显示选择图片dialog：

private void showDialog() {
if (photoChoose == null) {
photoChoose = PhotoChoose.build(mActivity,
new PhotoChoose.OnPhotoChooseListener() {

                @Override                public void cancel(PhotoChoose target) {                    target.dismiss();                }                @Override                public void camera(PhotoChoose target) {                    target.dismiss();                    String status = Environment                            .getExternalStorageState();                    if (status.equals(Environment.MEDIA_MOUNTED)) {                        try {                            localTempImageFileName = "";                            localTempImageFileName = String                                    .valueOf((new Date()).getTime())                                    + ".png";                            File filePath = FILE_PIC_SCREENSHOT;                            if (!filePath.exists()) {                                filePath.mkdirs();                            }                            Intent intent = new Intent(                                    android.provider.MediaStore.ACTION_IMAGE_CAPTURE);                            File f = new File(filePath,                                    localTempImageFileName);                            // localTempImgDir和localTempImageFileName是自己定义的名字                            Uri u = Uri.fromFile(f);                            intent.putExtra(                                    MediaStore.Images.Media.ORIENTATION,                                    0);                            intent.putExtra(MediaStore.EXTRA_OUTPUT, u);                            startActivityForResult(intent,                                    FLAG_CHOOSE_PHONE);                        } catch (ActivityNotFoundException e) {                            //                        }                    }                }                @Override                public void album(PhotoChoose target) {                    target.dismiss();                    Intent intent = new Intent();                    intent.setAction(Intent.ACTION_PICK);                    intent.setType("image/*");                    startActivityForResult(intent, FLAG_CHOOSE_IMG);                }            });}photoChoose.show();

}
PhotoChoose类：

package com.marchsoft.organization.widget;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager.LayoutParams;

import com.marchsoft.organization.R;

public class PhotoChoose extends Dialog implements OnClickListener {

private OnPhotoChooseListener mOnPhotoChooseListener;

public PhotoChoose(Context context) {
super(context);
}

public PhotoChoose(Context context, int theme) {
super(context, theme);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog_photo_choose);
findViewById(R.id.btn_photo_choose_album).setOnClickListener(this);
findViewById(R.id.btn_photo_choose_camera).setOnClickListener(this);
findViewById(R.id.btn_photo_choose_cancel).setOnClickListener(this);
Window win = getWindow();
LayoutParams params = win.getAttributes();
params.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
params.width = getLayoutInflater().getContext().getResources()
.getDisplayMetrics().widthPixels;
win.setAttributes(params);
setCanceledOnTouchOutside(true);// 设置点击Dialog外部任意区域关闭Dialog
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_photo_choose_album:
if (mOnPhotoChooseListener != null) {
mOnPhotoChooseListener.album(this);
}
break;
case R.id.btn_photo_choose_camera:
if (mOnPhotoChooseListener != null) {
mOnPhotoChooseListener.camera(this);
}
break;
case R.id.btn_photo_choose_cancel:
if (mOnPhotoChooseListener != null) {
mOnPhotoChooseListener.cancel(this);
}
break;
}
}

public void setOnPhotoChooseListener(
OnPhotoChooseListener onPhotoChooseListener) {
mOnPhotoChooseListener = onPhotoChooseListener;
}

public static interface OnPhotoChooseListener {
void camera(PhotoChoose target);

  void album(PhotoChoose target);  void cancel(PhotoChoose target);

}

public static PhotoChoose build(Context context,
OnPhotoChooseListener onPhotoChooseListener) {
PhotoChoose pc = new PhotoChoose(context, R.style.AlertDialog);
pc.setOnPhotoChooseListener(onPhotoChooseListener);
return pc;
}
}
onActivityResult:

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==LOGIN_REQUEST_CODE||Preferences.getRefreshing()){
setStatus();
Preferences.isRefreshing(false);
}

if (requestCode == FLAG_CHOOSE_IMG && resultCode == mActivity.RESULT_OK) {    if (data != null) {        Uri uri = data.getData();        if (!TextUtils.isEmpty(uri.getAuthority())) {            Cursor cursor = mActivity.getContentResolver().query(uri,                    new String[]{MediaStore.Images.Media.DATA},                    null, null, null);            if (null == cursor) {                ToastUtil.make(mActivity).show("没找到图片");                return;            }            cursor.moveToFirst();            String path = cursor.getString(cursor                    .getColumnIndex(MediaStore.Images.Media.DATA));            cursor.close();            Intent intent = new Intent(mActivity, CropImageActivity.class);            intent.putExtra("path", path);            intent.putExtra("rectRatioX", RATIOX);            intent.putExtra("rectRatioY", RATIOY);            intent.putExtra("name", "name");            startActivityForResult(intent, FLAG_MODIFY_FINISH);        } else {            Intent intent = new Intent(mActivity, CropImageActivity.class);            intent.putExtra("path", uri.getPath());            intent.putExtra("rectRatioX", RATIOX);            intent.putExtra("rectRatioY", RATIOY);            startActivityForResult(intent, FLAG_MODIFY_FINISH);        }    }} else if (requestCode == FLAG_CHOOSE_PHONE && resultCode == mActivity.RESULT_OK) {    File f = new File(FILE_PIC_SCREENSHOT, localTempImageFileName);    Intent intent = new Intent(mActivity, CropImageActivity.class);    intent.putExtra("path", f.getAbsolutePath());    intent.putExtra("rectRatioX", RATIOX);    intent.putExtra("rectRatioY", RATIOY);    startActivityForResult(intent, FLAG_MODIFY_FINISH);} else if (requestCode == FLAG_MODIFY_FINISH && resultCode == mActivity.RESULT_OK) {    if (data != null) {        final String path = data.getStringExtra("path");        mBitmap = BitmapFactory.decodeFile(path);        ByteArrayOutputStream out = new ByteArrayOutputStream();        mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);        try {            out.flush();            out.close();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        byte[] buffer = out.toByteArray();        byte[] encode = Base64.encode(buffer, Base64.DEFAULT);        String photo = new String(encode);        UploadPhotoToInternet(photo);    }}

}
图片裁剪页面：

package com.gammainfo.avatarpick;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

/**
* 裁剪界面
*
*/
public class CropImageActivity extends Activity implements OnClickListener {
public static final String RECTRATIOX = “rectRatioX”;
public static final String RECTRATIOY = “rectRatioY”;
public static final String IMAGE_WIDTH = “imageWidth”;

private CropImageView mImageView;
private Bitmap mBitmap;

private CropImage mCrop;

private TextView mSave;
private TextView mCancel;
private ImageView rotateRight;
private String mPath = “CropImageActivity”;
private String TAG = “”;
public int screenWidth = 0;
public int screenHeight = 0;

private ProgressBar mProgressBar;

public static final int SHOW_PROGRESS = 2000;
public static final int REMOVE_PROGRESS = 2001;

private int mRectRatioX;//横坐标方框比例
private int mRectRatioY; //纵坐标方框比例
private int mImageWidth; //图片宽

private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {

     switch (msg.what) {     case SHOW_PROGRESS:        mProgressBar.setVisibility(View.VISIBLE);        break;     case REMOVE_PROGRESS:        mHandler.removeMessages(SHOW_PROGRESS);        mProgressBar.setVisibility(View.INVISIBLE);        break;     }  }

};

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gl_modify_avatar);

  init();

}

@Override
protected void onStop() {
super.onStop();
if (mBitmap != null) {
mBitmap = null;
}
}

private void init() {
getWindowWH();
Intent intent = getIntent();
mRectRatioX = intent.getIntExtra(RECTRATIOX, 4);
mRectRatioY = intent.getIntExtra(RECTRATIOY, 4);
mImageWidth = intent.getIntExtra(IMAGE_WIDTH, 200);
mPath = intent.getStringExtra(“path”);
Log.i(TAG, “得到的图片的路径是 = ” + mPath);
mImageView = (CropImageView) findViewById(R.id.gl_modify_avatar_image);
mSave = (TextView) this.findViewById(R.id.gl_modify_avatar_save);
mCancel = (TextView) this.findViewById(R.id.gl_modify_avatar_cancel);

  rotateRight = (ImageView) this        .findViewById(R.id.gl_modify_avatar_rotate_right);  mSave.setOnClickListener(this);  mCancel.setOnClickListener(this);  rotateRight.setOnClickListener(this);  try {     mBitmap = createBitmap(mPath, screenWidth, screenHeight);     if (mBitmap == null) {        Toast.makeText(CropImageActivity.this, "没有找到图片", Toast.LENGTH_SHORT).show();        finish();     } else {        resetImageView(mBitmap);     }  } catch (Exception e) {     Toast.makeText(CropImageActivity.this, "没有找到图片", Toast.LENGTH_SHORT).show();     finish();  }  addProgressbar();

}

/**
* 获取屏幕的高和宽
*/
private void getWindowWH() {
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
screenWidth = dm.widthPixels;
screenHeight = dm.heightPixels;
}

private void resetImageView(Bitmap b) {
mImageView.clear();
mImageView.setImageBitmap(b);
mImageView.setImageBitmapResetBase(b, true);
mCrop = new CropImage(this, mImageView, mHandler, mRectRatioX, mRectRatioY, mImageWidth);
mCrop.crop(b);
}

public void onClick(View v) {
int id = v.getId();
if (id == R.id.gl_modify_avatar_cancel) {
// mCrop.cropCancel();
finish();
} else if (id == R.id.gl_modify_avatar_save) {
//String path = mCrop.saveToLocal(BitmapFactory.decodeFile(mPath));
String path = mCrop.saveToLocal(mCrop.cropAndSave(mPath));
Log.i(TAG, “截取后图片的路径是 = ” + path);
Intent intent = new Intent();
intent.putExtra(“path”, path);
setResult(RESULT_OK, intent);
finish();
} else if (id == R.id.gl_modify_avatar_rotate_right) {
mCrop.startRotate(90.f);
}
}

protected void addProgressbar() {
mProgressBar = new ProgressBar(this);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
addContentView(mProgressBar, params);
mProgressBar.setVisibility(View.INVISIBLE);
}

public Bitmap createBitmap(String path, int w, int h) {
try {
BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inJustDecodeBounds = true;
// 这里是整个方法的关键，inJustDecodeBounds设为true时将不为图片分配内存。
BitmapFactory.decodeFile(path, opts);
int srcWidth = opts.outWidth;// 获取图片的原始宽度
int srcHeight = opts.outHeight;// 获取图片原始高度
int destWidth = 0;
int destHeight = 0;
// 缩放的比例
double ratio = 0.0;
if (srcWidth < w || srcHeight < h) {
ratio = 0.0;
destWidth = srcWidth;
destHeight = srcHeight;
} else if (srcWidth > srcHeight) {// 按比例计算缩放后的图片大小，maxLength是长或宽允许的最大长度
ratio = (double) srcWidth / w;
destWidth = w;
destHeight = (int) (srcHeight / ratio);
} else {
ratio = (double) srcHeight / h;
destHeight = h;
destWidth = (int) (srcWidth / ratio);
}
BitmapFactory.Options newOpts = new BitmapFactory.Options();
// 缩放的比例，缩放是很难按准备的比例进行缩放的，目前我只发现只能通过inSampleSize来进行缩放，其值表明缩放的倍数，SDK中建议其值是2的指数值
newOpts.inSampleSize = (int) ratio + 1;
// inJustDecodeBounds设为false表示把图片读进内存中
newOpts.inJustDecodeBounds = false;
// 设置大小，这个一般是不准确的，是以inSampleSize的为准，但是如果不设置却不能缩放
newOpts.outHeight = destHeight;
newOpts.outWidth = destWidth;
// 获取缩放后图片
return BitmapFactory.decodeFile(path, newOpts);
} catch (Exception e) {
return null;
}
}

}

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