Android(安卓)头像修改

public class AvatarMananger {    private String AVATAR_PATH = Environment.getExternalStorageDirectory().getPath() + File.separator + "xd";    public static final int AVATER_PIC = 1001;    public static final int AVATER_ALBUM = 1002;    public static final int AVATER_CROPE = 1003;    private static AvatarMananger instance;    private static Activity act;    public static Uri lastUri;    private AvatarMananger() {        deleterFile();        newDirectory();    }    private void newDirectory() {        File file = new File(AVATAR_PATH);        if (!file.exists()) {            file.mkdir();        }    }    public static AvatarMananger newInstance(Activity activity) {        act = activity;        if (null == instance)            instance = new AvatarMananger();        return instance;    }    /**     * 打开图库     */    public void openAlbum() {        Intent intent = new Intent(Intent.ACTION_PICK,                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);        act.startActivityForResult(intent, AVATER_ALBUM);    }    /**     * 拍照     */    public void takePic() {        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);        lastUri = Uri.fromFile(new File(AVATAR_PATH + "/" + System.currentTimeMillis() + ".jpg"));        intent.putExtra(MediaStore.EXTRA_OUTPUT, lastUri);        act.startActivityForResult(intent, AVATER_PIC);    }    /**     * 裁剪     */    public void cropePic(Uri uri, int outputX, int outputY) {        Intent intent = new Intent("com.android.camera.action.CROP");        intent.setDataAndType(uri, "image/*");        intent.putExtra("crop", "true");        intent.putExtra("aspectX", 1);        intent.putExtra("aspectY", 1);        intent.putExtra("outputX", outputX);        intent.putExtra("outputY", outputY);        intent.putExtra("scale", true);//黑边        intent.putExtra("scaleUpIfNeeded", true);//黑边        intent.putExtra("return-data", false);        lastUri = Uri.fromFile(new File(AVATAR_PATH + "/" + System.currentTimeMillis() + ".jpg"));        intent.putExtra(MediaStore.EXTRA_OUTPUT, lastUri);        intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());        intent.putExtra("noFaceDetection", true); // no face detection        act.startActivityForResult(intent, AVATER_CROPE);    }    private void deleterFile() {        FileUtils.deleteDir(AVATAR_PATH);    }    public static Uri getLastUri() {        return lastUri;    }

包含相册，拍照，裁剪等功能，回调在使用Activity的onActivityResult中。

    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (resultCode == RESULT_OK)            switch (requestCode) {                case AvatarMananger.AVATER_ALBUM://                    ivShow.setImageURI(data.getData());                    AvatarMananger.newInstance(TestActivity.this).cropePic(data.getData(), 200, 200);                    break;                case AvatarMananger.AVATER_PIC://                    ivShow.setImageURI(AvatarMananger.newInstance(TestActivity.this).getLastUri());                    AvatarMananger.newInstance(TestActivity.this).cropePic(AvatarMananger.newInstance(TestActivity.this).getLastUri(), 200, 200);                    break;                case AvatarMananger.AVATER_CROPE:                    ivShow.setImageURI(AvatarMananger.newInstance(TestActivity.this).getLastUri());                    break;            }    }

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