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我使用startActivityForResult调用片段中的活动,但是onActivityResult永远不会被回调。我已经寻找可能的解决方案,包括从清单中移除SingleTask,SingleInstance,NoHistory,但目前为止没有任何工作。onActivityResult中的片段永远不会被调用
这是被叫片段:
public class PickUpButtonFragment extends Fragment {
....
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_pick_up_button, container,
false);
...
pickUpButton = (Button) view.findViewById(R.id.pickUpButton);
pickUpButton.setOnClickListener(new OnPickupClickListener());
...
return view;
}
....
private class OnPickupClickListener implements OnClickListener {
@Override
public void onClick(View view) {
Intent qrCodeActivityIntent = new Intent(getActivity(), QrCodeActivity.class);
startActivityForResult(qrCodeActivityIntent, 20);
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// Check which request we're responding to
if (requestCode == 20) {
qrCodeValue = data.getStringExtra(QrCodeActivity.QR_CODE_FLAG);
requestDeviceLocation();
}
}
...
}
片段被包含在其中我推翻了onActivityResult
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
}
这是活动是如何在清单中声明的活动:
<activity
android:name=".activity.GMapActivity"
android:label="@string/map_title"
>
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
被调用的活动有一个setResult方法:
public class QrCodeActivity extends Activity {
...
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_qr_code);
.....
initPickUpRequestButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
Intent data = new Intent();
data.putExtra(QR_CODE_FLAG, qrCodeValue);
setResult(RESULT_OK,data);
}
});
...
}
....
}
这就是所谓的活动是如何在清单中声明:
<activity
android:name=".activity.QrCodeActivity"
android:label="@string/qr_code_title"
>
</activity>
的setResult被调用,但onActivtyResult从不叫回来,无论是在父活动,并在片段。
我正在用4.1.2构建。
'setResult' then'finish()'... – StoneBird 2014-11-06 16:08:14