Java 从活动返回结果
我在安卓4.0.x上有问题。向上导航时,onActivityResult的结果代码始终为0,意图为空 向上导航代码:Java 从活动返回结果,java,android,android-intent,android-activity,navigation-drawer,Java,Android,Android Intent,Android Activity,Navigation Drawer,我在安卓4.0.x上有问题。向上导航时,onActivityResult的结果代码始终为0,意图为空 向上导航代码: protected void navigateUp(){ Intent upIntent = NavUtils.getParentActivityIntent(this); upIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
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);
}
}
public void onNavigationDrawerItemSelected(int position) {
Intent resultIntent = new Intent();
resultIntent.putExtra(SELECTED_POSITION, position);
setResult(RESULT_OK, resultIntent);
navigateUp();
}
设置结果代码:
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);
}
}
public void onNavigationDrawerItemSelected(int position) {
Intent resultIntent = new Intent();
resultIntent.putExtra(SELECTED_POSITION, position);
setResult(RESULT_OK, resultIntent);
navigateUp();
}
什么问题?它在4.4.x上工作,在4.0.x上不工作。为什么?谢谢 您忘记了activityresult的方法,因此您的代码必须如下所示:
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
}
}
我有以下方法:),但resultCode始终为0,Intent为null。