Android getBitmap 找不到指定的图像

Question

我试图在使用相机的 PictureCallback 后检索存储在我的存储器中的图像，但是 getBitmap 方法似乎无法找到该图像，它 returns 出现以下错误：

java.io.FileNotFoundException: No content provider: file://storage/emulated/0/MyApp/IMG_20150903_154338.jpg

我向你保证，该图像在该位置可用。我检查了位置。

Take the Photo

Get the image through the callback

Display the image in an ImageView

图像已保存。不显示。

这是我的代码：

captureImage.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                mCamera.takePicture(null, null, new PictureCallback() {
                    @Override
                    public void onPictureTaken(byte[] data, Camera camera) {

File storageDir = new File(Environment.getExternalStorageDirectory() + "/", "MyApp");

                        if (!storageDir.exists()) {
                            storageDir.mkdirs();//directory created
                        }
                        // get the current timestamp
                        String timest = new SimpleDateFormat("yyyyMMdd_HHmmss")
                                .format(new Date());
                        //Create your picture file
                        File pictureFile;
                        pictureFile = new File(storageDir.getPath() + File.separator + "IMG_" + timest + ".jpg");


                        try {
                            FileOutputStream fos = new FileOutputStream(pictureFile);
                            fos.write(data);
                            fos.close();
                        } catch (Exception e) {
                            Log.d("MyApp", e.toString());
                        }

                        Uri uri = Uri.fromFile(pictureFile);

                        try {
                                Bitmap bmp = MediaStore.Images.Media.getBitmap(CameraActivity.this.getContentResolver() , Uri.parse("file://"+ storageDir.getPath() + File.separator + "IMG_" + timest + ".jpg"));
                               
                                imageViewer = (ImageView) findViewById(R.id.imageViewer);
                                imageViewer.setImageBitmap(bmp);
                            } catch (Exception e) {
                                Log.d("MyApp", e.toString());
                            }

Answer 1

您是否已将读取外部存储的权限添加到您的androidmanifest.xml？

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

Android getBitmap 找不到指定的图像

Android getBitmap can't find the specified image

android

android-layout

android-camera