我将我的 nexus 5 Android 操作系统版本更新到 5.1.1，还更新了 Google Camera 和 Google Photos 应用程序。在此之后，每当我 try catch 图像并裁剪它时，我的应用程序就会崩溃并出现以下错误:

FATAL EXCEPTION: main
Process: com.app.test, PID: 4857
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=2, result=-1, data=Intent { typ=image/jpeg }} to activity {com.app.test/com.app.test.newActivity.activities.TestActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.os.Bundle.getParcelable(java.lang.String)' on a null object reference
        at android.app.ActivityThread.deliverResults(ActivityThread.java:3574)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:3617)
        at android.app.ActivityThread.access$1300(ActivityThread.java:151)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1352)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5254)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
 Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.os.Bundle.getParcelable(java.lang.String)' on a null object reference
        at com.app.test.newActivity.activities.TestActivity.onActivityResult(TestActivity.java:127)
        at android.app.Activity.dispatchActivityResult(Activity.java:6192)
        at android.app.ActivityThread.deliverResults(ActivityThread.java:3570)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3617)
            at android.app.ActivityThread.access$1300(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1352)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

以前它工作正常。我使用的代码如下:

图像捕获代码:

try {
    Intent imageCapture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    if (imageCapture.resolveActivity(getContext().getPackageManager()) != null) {
        imageCapture.putExtra(MediaStore.EXTRA_OUTPUT,  Uri.fromFile(new File(Environment.getExternalStorageDirectory().getAbsolutePath() + Constants.image_path)));
        startActivityForResult(imageCapture, Constants.CAMERA_IMAGE_CAPTURE);
    }
} catch (ActivityNotFoundException anfe) {
    Toast.makeText(getContext(), "device doesn't support capturing images!", Toast.LENGTH_SHORT).show();
}

图片裁剪代码

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
        super.onActivityResult(requestCode, resultCode, intent);
        if (resultCode == RESULT_OK) {
            if (requestCode == CAMERA_IAMGE_CROP) {
                Bundle extras = intent.getExtras();//intent.getExtras() is always returns NULL here         
                Bitmap thePic = extras.getParcelable("data");
                //setImageOnImageView(thePic);
            } else if (requestCode == Constants.CAMERA_IMAGE_CAPTURE)) {
                processCapturedImage();
            }
        }
    }

    private void processCapturedImage() {
        try {
            String path = Environment.getExternalStorageDirectory().getAbsolutePath() + Constants.image_path;
            File file = new File(path);
            if (file.exists()) {
                BitmapFactory.Options options = new BitmapFactory.Options();
                options.inPreferredConfig = Bitmap.Config.RGB_565;
                Bitmap bm = BitmapFactory.decodeFile(path, options);
                int rotate = AndroidUtils.getRotateValue(file.getAbsolutePath());
                if (rotate != 0) {
                    Debug.print("Profile pic rotation value is not 0.");
                    /****** Image rotation ****/
                    Matrix matrix = new Matrix();
                    matrix.postRotate(rotate);
                    bm = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true);
                }
                picUri = getImageUri(getApplicationContext(), bm);
                performCropAction();
            } else {
                Tools.showToast(EditProfileActivity.this, "Error occurred, please try again.");
            }
        } catch (Exception e) {
            Debug.printException(e);
        }
    }

    private void performCropAction() {
        try {
            Intent cropAction = new Intent("com.android.camera.action.CROP");
            cropAction.setDataAndType(picUri, "image/*");
            cropAction.putExtra("crop", "true");
            cropAction.putExtra("aspectX", 1);
            cropAction.putExtra("aspectY", 1);
            cropAction.putExtra("outputX", AS.getInPixels(100));
            cropAction.putExtra("outputY", AS.getInPixels(100));
            cropAction.putExtra("return-data", true);
            startActivityForResult(cropAction, CAMERA_IAMGE_CROP);
        } 
        catch (ActivityNotFoundException anfe) {
            Toast.makeText(this, "your device doesn't support the crop action!", Toast.LENGTH_SHORT).show();
        }
    }

如你所见， Bundle extras = intent.getExtras(); 这里的intent.getExtras()总是返回NULL。

非常感谢任何帮助! 谢谢。

最佳答案

android 5.0以上的Crop函数在onActivityResult中返回URI，所以要根据手机版本来处理。

Bitmap selectedBitmap;
if(Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
Bundle extras = data.getExtras();
selectedBitmap = extras.getParcelable("data");
}
else{
Uri uri = data.getData(); 
selectedBitmap=MediaStore.Images.Media.getBitmap(this.getContentResolver(),uri);
}

希望这对您有所帮助!

关于Android:将操作系统版本更新到 5.1.1 后图像裁剪后崩溃，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30889886/