我需要将5个片段之间的数据传递给一个Activity,当我到达第5个片段时,这些片段会一个接一个地发送数据,那么我需要存储所有的5个片段数据.任何想法都是伟大的.
解决方法
将数据从每个片段传递到活动,当活动获取所有数据然后处理它.
您可以使用接口传递数据.
您可以使用接口传递数据.
分段：
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);
}
}
