当相机活动返回时，承载这个片段的活动有它的onActivityResult被调用。
我的片段开始一个活动的结果与意图发送给相机拍照。图片应用程序加载正常，拍摄照片并返回。然而onActivityResult从未被击中。我设置了断点，但什么都没有触发。一个片段可以有onActivityResult吗?我想是的，因为它是一个已提供的函数。为什么这个没有被触发?
ImageView myImage = (ImageView)inflatedView.findViewById(R.id.image);
myImage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1888);
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if( requestCode == 1888 ) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
((ImageView)inflatedView.findViewById(R.id.image)).setImageBitmap(photo);
}
}
添加这个
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, 1);
}
当你将替换你的代码与上述代码，然后自动你的这个
public void onActivityResult(int requestCode, int resultCode,
@Nullable Intent data){}
方法将开始工作
//No Need to write this code in onclick method
Intent intent=new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT)
startActivityForResult(intent,1);
Toast.makeText(getContext(), "image"+intent, Toast.LENGTH_SHORT).show();
public class takeimage extends Fragment {
private Uri mImageCaptureUri;
private static final int PICK_FROM_CAMERA = 1;
private static final int PICK_FROM_FILE = 2;
private String mPath;
private ImageView mImageView;
Bitmap bitmap = null;
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.activity_send_image, container, false);
final String[] items = new String[] { "From Camera", "From SD Card" };
mImageView = (ImageView)view.findViewById(R.id.iv_pic);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.select_dialog_item, items);
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Select Image");
builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
if (item == 0) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File file = new File(Environment.getExternalStorageDirectory(), "tmp_avatar_"
+ String.valueOf(System.currentTimeMillis())
+ ".jpg");
mImageCaptureUri = Uri.fromFile(file);
try {
intent.putExtra(
android.provider.MediaStore.EXTRA_OUTPUT,
mImageCaptureUri);
intent.putExtra("return-data", true);
getActivity().startActivityForResult(intent,
PICK_FROM_CAMERA);
} catch (Exception e) {
e.printStackTrace();
}
dialog.cancel();
} else {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
getActivity().startActivityForResult(
Intent.createChooser(intent,
"Complete action using"), PICK_FROM_FILE);
}
}
});
final AlertDialog dialog = builder.create();
Button show = (Button) view.findViewById(R.id.btn_choose);
show.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// Switch the tab content to display the list view.
dialog.show();
}
});
return view;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_OK)
return;
if (requestCode == PICK_FROM_FILE) {
mImageCaptureUri = data.getData();
// mPath = getRealPathFromURI(mImageCaptureUri); //from Gallery
if (mPath == null)
mPath = mImageCaptureUri.getPath(); // from File Manager
if (mPath != null)
bitmap = BitmapFactory.decodeFile(mPath);
} else {
mPath = mImageCaptureUri.getPath();
bitmap = BitmapFactory.decodeFile(mPath);
}
mImageView.setImageBitmap(bitmap);
}
public String getRealPathFromURI(Uri contentUri) {
String [] proj = {MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery(contentUri, proj, null, null,null);
if (cursor == null) return null;
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}
只需使用下面的代码片段。
@Override
public void onOtherButtonClick(ActionSheet actionSheet, int index) {
if (index == 1)
{
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent,
"Select Picture"), 1);
}
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == 1) {
if (requestCode == 1) {
Uri selectedImageUri = data.getData();
//selectedImagePath = getPath(selectedImageUri);
}
}
}
onActivityResult将调用而不调用它的父类。
我也面临着同样的问题，一旦我把这段代码从一个片段转移到一个实用工具类，将parentActivity作为参数传递，
Intent intent = new Intent(parentActivity, CameraCaptureActivity.class);
parentActivity.startActivityForResult(intent,requestCode);
然后我没有得到任何值在onActivityResult方法的片段，
之后，我把参数改为Fragment，所以修改后的method定义是这样的，
Intent intent = new Intent(fragment.getContext(), CameraCaptureActivity.class);
fragment.startActivityForResult(intent,requestCode);
在那之后，我能够在片段上的onActivityResult中获得值
我在使用ChildFragmentManager时有同样的问题。管理器不会将结果传递给嵌套片段，您必须在基本片段中手动执行此操作。
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
Fragment fragment = (Fragment) getChildFragmentManager().findFragmentByTag(childTag);
if (fragment != null) {
fragment.onActivityResult(requestCode, resultCode, intent);
}
}
