我正在努力从图库中选择图像或从相机中捕捉照片并在RecyclerView中显示。它正在我的模拟器和其他两个Android手机上工作但不在我的平板电脑（Lenovo Phab Plus）上，一旦相机点击图片就会显示以下内容：
cannot compute fingerprint for: content://media/external/images/media/290 java.io.FileNotFoundException: No such file or directory
以下是代码：
MainActivity.java
public class MainActivity extends AppCompatActivity {
private ArrayList<Images> images;
private ImageAdapter imageAdapter;
private RecyclerView rv;
private LinearLayoutManager llm;
private Uri mCapturedImageURI;
private static final int RESULT_LOAD_IMAGE = 1;
private static final int REQUEST_IMAGE_CAPTURE = 2;
private static final int REQUEST_WRITE_STORAGE=3;
static final int PERMISSION_REQUEST_CODE=100;
final static String TAG="";
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
private GoogleApiClient client;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getCameraPermission();
images = new ArrayList<>();
imageAdapter = new ImageAdapter(images);
rv = (RecyclerView) findViewById(R.id.rv);
llm = new LinearLayoutManager(this);
rv.setLayoutManager(llm);
imageAdapter = new ImageAdapter(images);
rv.setAdapter(imageAdapter);
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
public void activeCamera(View view) {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
String fileName = "temp.jpg";
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, fileName);
mCapturedImageURI = getContentResolver()
.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
values);
takePictureIntent
.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
public void getCameraPermission(){
if (!checkPermission()) {
requestPermission();
}
}
private boolean checkPermission(){
int result = ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
if (result == PackageManager.PERMISSION_GRANTED){
return true;
} else {
return false;
}
} private void requestPermission(){
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.CAMERA)){
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CAMERA}, PERMISSION_REQUEST_CODE);
} else {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CAMERA}, PERMISSION_REQUEST_CODE);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST_CODE:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(MainActivity.this,"Permission granted",Toast.LENGTH_SHORT).show();
//store permission in shared pref
}
else {
Toast.makeText(MainActivity.this,"Permission denied",Toast.LENGTH_SHORT).show();
//store permission in shared pref
}
break;
}
}
public void activeGallery(View view) {
Intent intent = new Intent(Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, RESULT_LOAD_IMAGE);}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RESULT_LOAD_IMAGE:
Uri selectedImage = null;
if (requestCode == RESULT_LOAD_IMAGE &&
resultCode == RESULT_OK && null != data) {
if (Build.VERSION.SDK_INT < 19) {
selectedImage = data.getData();
} else {
selectedImage = data.getData();
}
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver()
.query(selectedImage, filePathColumn, null, null,
null);
if (cursor != null && cursor.getCount() > 0) {
cursor.moveToFirst();
}
// cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Images image = new Images();
image.setPath(picturePath);
images.add(image);
}
case REQUEST_IMAGE_CAPTURE:
if (requestCode == REQUEST_IMAGE_CAPTURE &&
resultCode == RESULT_OK) {
String[] projection = {MediaStore.Images.Media.DATA};
Cursor cursor =
getContentResolver().query(mCapturedImageURI, projection, null,
null, null);
int column_index_data = cursor.getColumnIndexOrThrow(
MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String picturePath = cursor.getString(column_index_data);
Images image = new Images();
image.setPath(picturePath);
images.add(image);
cursor.close();
}
}
}}
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.urjapawar.bevypart2">
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature
android:name="android.hardware.camera"
android:required="false"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme"
>
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity><!-- ATTENTION: This was auto-generated to add Google Play services to your project for
App Indexing. See https://g.co/AppIndexing/AndroidStudio for more information. -->
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</application>
</manifest>
ImagesAdapter.java
public class ImageAdapter extends android.support.v7.widget.RecyclerView.Adapter<ImageAdapter.ImgViewHolder> {
List<Images> images;
ImageAdapter(List<Images> img){
this.images = img;
}
public class ImgViewHolder extends android.support.v7.widget.RecyclerView.ViewHolder
{
ImageView personPhoto;
CardView cv;
public ImgViewHolder(View itemView) {
super(itemView);
cv = (CardView)itemView.findViewById(R.id.card_view);
personPhoto=(ImageView)itemView.findViewById(R.id.thumbnail);
}
}
@Override
public ImgViewHolder onCreateViewHolder(final ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.single_card, viewGroup, false);
ImgViewHolder pvh = new ImgViewHolder(v);
return pvh;
}
@Override
public int getItemCount() {
return images.size();
}
@Override
public void onBindViewHolder(ImgViewHolder holder, int i) {
Images image = images.get(i);
final int THUMBSIZE = 96;
holder.personPhoto.setImageBitmap(ThumbnailUtils
.extractThumbnail(BitmapFactory.decodeFile(image.getPath()),
THUMBSIZE, THUMBSIZE));
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
}
这里是logcat
05-30 07:02:40.951 27858-1310/? I/iu.FingerprintManager: Start processing media store URI: content://media/external/images/media
05-30 07:02:40.956 883-9613/? V/BroadcastQueue: processNextBroadcast() intent[Intent { act=android.intent.action.ACTION_POWER_CONNECTED flg=0x4000010 } pkg[com.google.android.apps.photos] cls[com.google.android.apps.photos.dbprocessor.impl.DatabaseProcessorReceiver]
05-30 07:02:40.956 883-9613/? V/BroadcastQueue: processNextBroadcast() boot_complete op mode:0
05-30 07:02:40.962 883-1560/? V/BroadcastQueue: processNextBroadcast() intent[Intent { act=android.intent.action.ACTION_POWER_CONNECTED flg=0x4000010 } pkg[com.google.android.apps.photos] cls[com.google.android.apps.photos.scheduler.PowerReceiver]
05-30 07:02:40.962 883-1560/? V/BroadcastQueue: processNextBroadcast() boot_complete op mode:0
05-30 07:02:40.971 883-2192/? V/BroadcastQueue: processNextBroadcast() intent[Intent { act=android.intent.action.ACTION_POWER_CONNECTED flg=0x4000010 } pkg[com.google.android.apps.photos] cls[com.google.android.apps.photos.trash.purger.PurgeTrashRegisterReceiver]
05-30 07:02:40.972 883-2192/? V/BroadcastQueue: processNextBroadcast() boot_complete op mode:0
05-30 07:02:40.981 883-16462/? V/BroadcastQueue: processNextBroadcast() intent[Intent { act=android.hardware.usb.action.USB_STATE flg=0x20000010 (has extras) } pkg[com.android.providers.media] cls[com.android.providers.media.MtpReceiver]
05-30 07:02:40.981 883-16462/? V/BroadcastQueue: processNextBroadcast() boot_complete op mode:0
05-30 07:02:40.990 27858-1310/? E/LocalFingerprints: cannot compute fingerprint for: content://media/external/images/media/290 java.io.FileNotFoundException: No such file or directory
at android.database.DatabaseUtils.readExceptionWithFileNotFoundExceptionFromParcel(DatabaseUtils.java:146)
at android.content.ContentProviderProxy.openTypedAssetFile(ContentProviderNative.java:689)
at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1080)
at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:921)
at android.content.ContentResolver.openInputStream(ContentResolver.java:646)
at acmh.a(SourceFile:174)
at acks.a(SourceFile:138)
at com.google.android.libraries.social.autobackup.FingerprintScannerChimeraIntentService.onHandleIntent(SourceFile:66)
at beq.handleMessage(SourceFile:65)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.os.HandlerThread.run(HandlerThread.java:61)
05-30 07:02:40.990 27858-1310/? I/iu.FingerprintManager: Not inserting fingerprint into all photos because has empty content uri or fingerprint. uri: true fingerprint: false
05-30 07:02:40.997 27858-1310/? I/iu.FingerprintManager: Start processing media store URI: content://media/external/video/media
05-30 07:02:41.002 976-1311/? E/LocalFingerprints: cannot compute fingerprint for: content://media/external/images/media/290
请帮忙！