我在Android 4.0.x上遇到问题。当向上导航 onActivityResult 时,resultCode始终为0且Intent为null。
导航代码:
protected void navigateUp(){
Intent upIntent = NavUtils.getParentActivityIntent(this);
upIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
if (NavUtils.shouldUpRecreateTask(this, upIntent)) {
TaskStackBuilder.create(this)
.addNextIntentWithParentStack(upIntent)
.startActivities();
} else {
NavUtils.navigateUpTo(this, upIntent);
}
}
设置结果代码:
public void onNavigationDrawerItemSelected(int position) {
Intent resultIntent = new Intent();
resultIntent.putExtra(SELECTED_POSITION, position);
setResult(RESULT_OK, resultIntent);
navigateUp();
}
有什么问题?它适用于4.4.x,不适用于4.0.x.为什么? THX!
答案 0 :(得分:0)
您忘记了方法onActivityResult
,因此您的代码必须如下:
Intent intent = new Intent(this, YourActivity.class);
startActivityForResult(intent, 1);
.
.
.
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK){
//Do whatever you want
}
}