传递数据片段间到活动 [英] Passing Data Between Fragments to Activity
本文介绍了传递数据片段间到活动的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要从5 片段
之间的数据传递给一个活动
,这些片段
陆续发送数据之一,当我到了第5'片段
然后我需要存储的所有5 片段
数据我们如何能做到这一点。任何想法是伟大的。
I need to pass data between from 5 fragments
to one Activity
, those fragments
send data one after another when i reach 5'th fragment
then i need to store all 5 fragments
data how can we do this. any idea is Great.
推荐答案
从每个片段活动,当活动得到的所有数据,然后进行处理传递数据。 您可以使用接口传递数据。
Pass data from each fragment to activity, when activity gets all data then process it. You can pass data using interfaces.
片段:
public class Fragment2 extends Fragment {
public interface onSomeEventListener {
public void someEvent(String s);
}
onSomeEventListener someEventListener;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
someEventListener = (onSomeEventListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement onSomeEventListener");
}
}
final String LOG_TAG = "myLogs";
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment2, null);
Button button = (Button) v.findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
someEventListener.someEvent("Test text to Fragment1");
}
});
return v;
}
}
活动:
public class MainActivity extends Activity implements onSomeEventListener{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Fragment frag2 = new Fragment2();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.add(R.id.fragment2, frag2);
ft.commit();
}
@Override
public void someEvent(String s) {
Fragment frag1 = getFragmentManager().findFragmentById(R.id.fragment1);
((TextView)frag1.getView().findViewById(R.id.textView)).setText("Text from Fragment 2:" + s);
}
}
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