我被困了。这是我的方法，从相机获取图片，并保存它们：
> > @Override
> public File createImageFile() throws IOException {
> String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
> String imageFileName = "JPEG_" + timeStamp + "_";
> File storageDir = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
> File imageFile = File.createTempFile(imageFileName, ".jpg", storageDir);
> model.currentPhotoPath = imageFile.getAbsolutePath();
> return imageFile;
> }
@Override
public Intent getCameraPictureIntent(PackageManager packageManager) {
Intent pictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (pictureIntent.resolveActivity(packageManager) != null) {
try {
model.userPicFile = createImageFile();
} catch (IOException e) {
Log.i(TAG, "Can't create file!");
}
if (model.userPicFile != null) {
model.userPicFileUri = FileProvider.getUriForFile(context,
"com.internship.droidz.talkin.fileprovider",
model.userPicFile);
pictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, model.userPicFileUri);
}
}
return pictureIntent;
}
我正在创建tempfile，然后获取uri，将其设置为intent。然后startActivity获得结果。当我拍照并提交时，应用程序崩溃了。 Logcat没有说什么。
这里是存储文件和uri：
public class RegistrationModel implements RegistrationContract.RegistrationModel {
String currentPhotoPath;
Uri userPicFileUri;
File userPicFile;
}
这是Manifest.xml中的权限：
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera"
android:required="false" />
编译API 19 +
那是Log.i说的：
01-30 14:39:18.721 3265-3265/com.android.camera E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.android.camera, PID: 3265
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3823)
at android.view.View.performClick(View.java:4438)
at android.view.View$PerformClick.run(View.java:18422)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at android.view.View$1.onClick(View.java:3818)
at android.view.View.performClick(View.java:4438)
at android.view.View$PerformClick.run(View.java:18422)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.SecurityException: Permission Denial: opening provider android.support.v4.content.FileProvider from ProcessRecord{52a0a5b0 3265:com.android.camera/u0a36} (pid=3265, uid=10036) that is not exported from uid 10058
at android.os.Parcel.readException(Parcel.java:1465)
at android.os.Parcel.readException(Parcel.java:1419)
at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:2848)
at android.app.ActivityThread.acquireProvider(ActivityThread.java:4399)
at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2208)
at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1425)
at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:906)
at android.content.ContentResolver.openOutputStream(ContentResolver.java:669)
at android.content.ContentResolver.openOutputStream(ContentResolver.java:645)
at com.android.camera.Camera.doAttach(Camera.java:1385)
at com.android.camera.Camera.onReviewDoneClicked(Camera.java:1362)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at android.view.View$1.onClick(View.java:3818)
at android.view.View.performClick(View.java:4438)
at android.view.View$PerformClick.run(View.java:18422)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：0)
感谢大家！我使用回答Android - file provider - permission denial
解决了这个问题 List<ResolveInfo> resInfoList = context.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo resolveInfo : resInfoList) {
String packageName = resolveInfo.activityInfo.packageName;
context.grantUriPermission(packageName, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
}