另一个奇怪的问题。在通过意图处理相机时始终获取RESULT_CANCELLED(这是一个问题)。更多相关背景:onActivityResult RESULT_CODE始终为0(取消)
我的活动的onCreate分配setOnClickListener到ImageView的:
this.imSnapshot.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, getImageUri());
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
});
getImageUri方法的代码:
private Uri getImageUri() {
ContextWrapper cw = new ContextWrapper(this);
File dir = cw.getDir("dcim", Context.MODE_PRIVATE);
File file = new File(dir, UUID.randomUUID().toString()+".png");
Uri imgUri = Uri.fromFile(file);
Log.d("DetailsModify.getImageUri", imgUri.toString());
return imgUri;
}
下面是onActivityResult(日志行总是返回0):
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST) {
Log.d("DetailsModify", "onActivityResult code " + resultCode);
if (resultCode == RESULT_OK) {
更新:错误被IDE过滤,所以我没有注意到它原来:
CameraActivity:Saved image not found
java.io.FileNotFoundException
at android.os.Parcel.openFileDescriptor(Native Method)
at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:119)
at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:481)
at android.content.ContentResolver.openOutputStream(ContentResolver.java:365)
at android.content.ContentResolver.openOutputStream(ContentResolver.java:341)
at com.sonyericsson.android.camera.CameraActivity.copyContentToExtraOutputUri(CameraActivity.java:1680)
at com.sonyericsson.android.camera.CameraActivity.setResult(CameraActivity.java:1639)
at com.sonyericsson.android.camera.view.CameraWindow.onStoreComplete(CameraWindow.java:1405)
at com.sonyericsson.android.camera.PhotoController.onStoreComplete(PhotoController.java:879)
at com.sonyericsson.android.camera.TakenStatus.notifyComplete(TakenStatus.java:83)
at com.sonyericsson.android.camera.ImageManager$StoreDataHandler.handleMessage(ImageManager.java:960)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:138)
at android.app.ActivityThread.main(ActivityThread.java:3701)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
at dalvik.system.NativeStart.main(Native Method)
值得一提:在onClick中删除此行让我回来RESULT_OK: cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT,getImageUri()); –
也许目录“dcim”不存在,从而导致意图返回RESULT_CANCELED? – ashishduh
在文档(http://developer.android.com/reference/android/content/ContextWrapper.html)中,它表示getDir“检索,如果需要,创建一个新的目录,应用程序可以在其中放置自己的自定义数据文件。” 。将看看文件是否被创建。 –