public static void cropImage(Activity activity, Uri srcUri) {
        cropImageUri = srcUri;

        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(srcUri, "image/*");
        intent.putExtra("crop", "true");

        
        // 1.寬高和比例都不設置時,裁剪框可以自行調整(比例和大小都可以隨意調整)
        ////////////////////////////////////////////////////////////////
        // 2.只設置裁剪框寬高比(aspect)后,裁剪框比例固定不可調整,只能調整大小
        ////////////////////////////////////////////////////////////////
        // 3.裁剪后生成圖片寬高(output)的設置和裁剪框無關,只決定最終生成圖片大小
        ////////////////////////////////////////////////////////////////
        // 4.裁剪框寬高比例(aspect)可以和裁剪后生成圖片比例(output)不同,此時,
        // 會以裁剪框的寬為準,按照裁剪寬高比例生成一個圖片,該圖和框選部分可能不同,
        //  不同的情況可能是截取框選的一部分,也可能超出框選部分,向下延伸補足
        ////////////////////////////////////////////////////////////////

        // aspectX aspectY 是裁剪框寬高的比例
//        intent.putExtra("aspectX", 1);
//        intent.putExtra("aspectY", 1);
//        // outputX outputY 是裁剪后生成圖片的寬高
//        intent.putExtra("outputX", 300);
//        intent.putExtra("outputY", 300);

        // return-data為true時,會直接返回bitmap數(shù)據(jù),但是大圖裁剪時會出現(xiàn)問題,推薦下面為false時的方式
        // return-data為false時,不會返回bitmap,但需要指定一個MediaStore.EXTRA_OUTPUT保存圖片uri
        intent.putExtra(MediaStore.EXTRA_OUTPUT, cropImageUri);
        intent.putExtra("return-data", false);

        activity.startActivityForResult(intent, CROP_IMAGE);

}

float screenMinSize = Math.min(getResources().getDisplayMetrics().widthPixels, getResources().getDisplayMetrics().heightPixels);
        //根據(jù)screenMinSize，計算出cameraPreview的較寬的一邊，長寬比為標準的16:9
        float maxSize = screenMinSize / 9.0f * 16.0f;
        RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams((int) maxSize, (int) screenMinSize);
        layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
        mCameraPreview.setLayoutParams(layoutParams);
        float height = (int) (screenMinSize * 0.3);
        float density = getResources().getDisplayMetrics().density;  // 屏幕密度（0.75 / 1.0 / 1.5）
        float mywdith =(int) 136*density;
        int widthPixels = getResources().getDisplayMetrics().widthPixels;
        float width = (int) (widthPixels-mywdith);//75 47
        LinearLayout.LayoutParams containerParams = new LinearLayout.LayoutParams((int) width, ViewGroup.LayoutParams.MATCH_PARENT);
        LinearLayout.LayoutParams cropParams = new LinearLayout.LayoutParams((int) width, (int) height);
        mLlCameraCropContainer.setLayoutParams(containerParams);
        mIvCameraCrop.setLayoutParams(cropParams);

/**
 * 拍照
 */
private void takePhoto() {
        mCameraPreview.setEnabled(false);
        mCameraPreview.takePhoto(new Camera.PictureCallback() {
            @Override
            public void onPictureTaken(final byte[] data, Camera camera) {
//                camera.stopPreview();
                camera.startPreview();
                //子線程處理圖片，防止ANR

//                setCropLayout();
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
                        String imagePath = path;
                        ImageUtils.save(bitmap, imagePath, Bitmap.CompressFormat.JPEG);
                        int rotation = getWindowManager().getDefaultDisplay().getRotation();
                        int angle = ImageUtils.getBitmapDegree(imagePath);
                        if (mOrientation==90){
                            bitmap = ImageUtils.rotateBitmap(CameraActivity.this.bitmap, 180);
                        }

                        /**
                         * 計算裁剪位置
                         */
                        float left, top, right, bottom;
                        left = ((float) mLlCameraCropContainer.getLeft() - (float) mCameraPreview.getLeft()) / (float) mCameraPreview.getWidth();
                        top = (float) mIvCameraCrop.getTop() / (float) mCameraPreview.getHeight();
                        right = (float) mLlCameraCropContainer.getRight() / (float) mCameraPreview.getWidth();
                        bottom = (float) mIvCameraCrop.getBottom() / (float) mCameraPreview.getHeight();

                        /**
                         * 自動裁剪
                         **/
                        mCropBitmap = Bitmap.createBitmap(bitmap,
                                (int) (left * (float) bitmap.getWidth()),
                                (int) (top * (float) bitmap.getHeight()),
                                (int) ((right - left) * (float) bitmap.getWidth()),
                                (int) ((bottom - top) * (float) bitmap.getHeight()));

                        /**
                         * 手動裁剪
                         **/
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                //將裁剪區(qū)域設置成與掃描框一樣大
                                setCropLayout();
                                mCropImageView.setLayoutParams(new LinearLayout.LayoutParams(mIvCameraCrop.getWidth(), mIvCameraCrop.getHeight()));
                                mCropImageView.setImageBitmap( mCropBitmap);
                            }
                        });
                    }
                }).start();
                safeToTakePicture = true;
            }
        });
}