[英]Android onActivityResult in dialog
通过单击MainActivity中Fragment( TrainerSettings
)中的按钮打开DialogFragment( SettingsBackImageDialog
)。 在SettingsBackImageDialog
有一些按钮,其中一个用于拍摄照片并将其设置为Fragment中的Imageview( trainersettingsmainicon
)。
我在TrainerSettings
打开SettingsBackImageDialog
:
public void onViewCreated (View view, Bundle savedInstanceState) {
view.findViewById(R.id.trainersettingsbackgroundbtn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showEditbackImageDialog();
}
});
}
private void showEditbackImageDialog() {
android.support.v4.app.FragmentManager fm = getActivity().getSupportFragmentManager();
SettingsBackImageDialog settingsBackImageDialog = SettingsBackImageDialog.newInstance("Wybierz pierwszy kolor");
settingsBackImageDialog.show(fm, "SettingsBackImageDialog");
}
我在SettingsBackImageDialog
中的代码是:
public class SettingsBackImageDialog extends DialogFragment {
int REQUESTCODE=1;
public SettingsBackImageDialog() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.settingsbackgroundimgdialog, container);
}
@Override
public void onViewCreated(final View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
view.findViewById(R.id.takephotobtn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, REQUESTCODE);
}
});
String title = getArguments().getString("txt", "txt");
getDialog().setTitle(title);
getDialog().getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Toast.makeText(getActivity(), "before", Toast.LENGTH_LONG).show();
if(requestCode==REQUESTCODE & resultCode== Activity.RESULT_OK){
Bundle bundle = new Bundle();
bundle = data.getExtras();
Bitmap bitmap = (Bitmap)bundle.get("data");
ImageView img = (ImageView) getActivity().findViewById(R.id.trainersettingsmainicon);
img.setImageBitmap(bitmap);
Toast.makeText(getActivity(), "in", Toast.LENGTH_LONG).show();
}
}
}
在MainActivity
:
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.MainContainer);
fragment.onActivityResult(requestCode, resultCode, data);
Toast.makeText(getApplicationContext(), "im here", LENGTH_SHORT).show();
}
应用程序打开相机,我可以采取piture并“接受”它,但没有其他事情发生。 可能应用程序从不使用onActivityResult方法(我尝试在此方法中编写一些消息,但没有任何事情发生)。
在AndroidMonitor中:
05-09 02:43:50.299 9709-10068/com.hgyghyfghyu.apkana40 W/GooglePlayServicesUtil: Google Play services out of date. Requires 8115000 but found 5089070
05-09 02:43:50.339 9709-9709/com.hgyghyfghyu.apkana40 W/EGL_emulation: eglSurfaceAttrib not implemented
我用nox app来模仿android手机。
我该怎么做才能解决我的问题?
所选择的答案在这里正好解决您的问题。 您还需要检查此答案 , 该答案解决了应该在何处处理onActivityResult
的问题。 我的建议是你改变你的代码如下:
@Override
public void onViewCreated(final View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
view.findViewById(R.id.takephotobtn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//changed getActivity().startActivityForResult(i, REQUESTCODE); to:
startActivityForResult(i, REQUESTCODE);
}
});
String title = getArguments().getString("txt", "txt");
getDialog().setTitle(title);
getDialog().getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
}
onActivityResult()
将首先在Activity
上调用。 之后,如果您在Activity中调用super.onActivityResult()
,它将与Fragments
。 因此,您需要在Activity
添加onActivityResult
回调 - 以便可以调用Fragment
那个。
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}
完成后,将调用Fragment上的onActivityResult
,并按预期执行代码。
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode==REQUESTCODE & resultCode== Activity.RESULT_OK){
Bundle bundle = new Bundle();
bundle = data.getExtras();
Bitmap bitmap = (Bitmap)bundle.get("data");
ImageView img = (ImageView) getActivity().findViewById(R.id.trainersettingsmainicon);
img.setImageBitmap(bitmap);
}
}
你需要看看这两个密切相关的
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