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);
}
}
如果你不知道活动中的片段，只需要枚举它们并发送活动结果参数:
/ / Java
// In your activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
for (Fragment fragment : getSupportFragmentManager().getFragments()) {
fragment.onActivityResult(requestCode, resultCode, data);
}
}
科特林
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
for (fragment in supportFragmentManager.fragments) {
fragment.onActivityResult(requestCode, resultCode, data)
}
}
你的代码有一个嵌套的片段。调用超。onActivityForResult不起作用
你不希望修改你的片段可以被调用的每个活动，或者绕过调用片段链中的每个片段。
这是许多可行的解决方案之一。动态地创建一个片段，并使用支持片段管理器将其直接连接到活动。然后从新创建的片段调用startActivityForResult。
private void get_UserEmail() {
if (view == null) {
return;
}
((TextView) view.findViewById(R.id.tvApplicationUserName))
.setText("Searching device for user accounts...");
final FragmentManager fragManager = getActivity().getSupportFragmentManager();
Fragment f = new Fragment() {
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
startActivityForResult(AccountPicker.newChooseAccountIntent(null, null,
new String[]{"com.google"}, false, null, null, null, null), REQUEST_CODE_PICK_ACCOUNT);
}
@Override
public void onActivityResult(int requestCode, int resultCode,
Intent data) {
if (requestCode == REQUEST_CODE_PICK_ACCOUNT) {
String mEmail = "";
if (resultCode == Activity.RESULT_OK) {
if (data.hasExtra(AccountManager.KEY_ACCOUNT_NAME)) {
mEmail = data
.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
}
}
if (mActivity != null) {
GoPreferences.putString(mActivity, SettingApplication.USER_EMAIL, mEmail);
}
doUser();
}
super.onActivityResult(requestCode, resultCode, data);
fragManager.beginTransaction().remove(this).commit();
}
};
FragmentTransaction fragmentTransaction = fragManager
.beginTransaction();
fragmentTransaction.add(f, "xx" + REQUEST_CODE_PICK_ACCOUNT);
fragmentTransaction.commit();
}
