我在Android中从相册导入图片时遇到问题,因为永远不会调用onActivityResult()
方法。
这是我写的代码(从片段调用而不是活动):
Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
getActivity().startActivityForResult(galleryIntent, PICK_IMAGE);
顺便说一句,我已经定义了onActivityResult()
,但它从未触发过:
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.d(TAG, "onActivityResult"); // not printed
}
知道这有什么问题吗?
谢谢!
答案 0 :(得分:112)
要在片段中调用onActivityResult()
,您应该调用片段的startActivityForResult()
版本,而不是活动的版本。所以在你的片段代码中,替换
getActivity().startActivityForResult(galleryIntent, PICK_IMAGE);
与
startActivityForResult(galleryIntent, PICK_IMAGE);
答案 1 :(得分:16)
使用此代码:
Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
getActivity().startActivityForResult(galleryIntent, PICK_IMAGE);
onActivityResult必须位于包含Fragment的Activity中。从那里你可以调用片段的任何方法,而不是片段。
MyFragment myFragment = (MyFragment) getSupportFragmentManager().findFragmentById(R.id.fragment);
myFragment .onCameraResult(requestCode, resultCode, intent);
无论你想做什么
答案 2 :(得分:-2)
试试这个代码段:
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.setType("image/*");
intent.putExtra("return-data", true);
startActivityForResult(intent, 1);
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case 1:
if(requestCode == 1 && data != null && data.getData() != null){
Uri _uri = data.getData();
if (_uri != null) {
Cursor cursor = getContentResolver().query(_uri, new String[] { android.provider.MediaStore.Images.ImageColumns.DATA }, null, null, null);
cursor.moveToFirst();
final String imageFilePath = cursor.getString(0);
File photos= new File(imageFilePath);
imageView.setImageBitmap(bitmap);
cursor.close();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}