Toast message not displayed at x seconds in fragments?
I want to show a toast message every 2 second in my application which is in fragment not activity, but in my code it show only once I share my code below please help .
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { rootView = inflater.inflate(R.layout.fragment_layout_one, container, false);
MapsInitializer.initialize(getActivity());
mMapView = (MapView)rootView.findViewById(R.id.mapView);
mMapView.onCreate(mBundle);
MapsInitializer.initialize(getActivity());
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
}
/* new DownloadJSON().execute();
setUpMapIfNeeded(rootView); */
handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
new DownloadJSON().execute();
setUpMapIfNeeded(rootView);
Toast.makeText(getActivity(), "Data Updated!!!! ", Toast.LENGTH_SHORT).show();
Log.e("Data in Log", "");
}
}, 1000);
new DownloadJSON().execute();
setUpMapIfNeeded(rootView);
/*LocationManager locman = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
//locman.requestLocationUpdates(minTime, minDistance, criteria, intent);
locman.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 10, this);*/
return rootView;
}
It work for me, you can these code...
final Handler handler = new Handler();
timer = new Timer();
TimerTask doAsynchronousTask = new TimerTask() {
@Override
public void run() {
handler.post(new Runnable() {
public void run() {
Log.e("run", "run");
}
});
}
};
timer.schedule(doAsynchronousTask, 60000, 60000);
these code is run after every 1Min..
postDelayed只做一次事情，最简单的解决方案就是像这样重新发布任务：
final Handler handler = new Handler();
final Runnable repeatingToast = new Runnable() {
@Override
public void run() {
Toast.makeText(getActivity(), "My text!!!",Toast.LENGTH_SHORT).show();
if(your_condition) {
handler.postDelayed(repeatingToast, 1000);
}
}
};
handler.postDelayed(repeatingToast, 1000);
Toast.LENGTH_LONG = 3500; // 3.5 seconds
Toast.LENGTH_SHORT = 2000; // 2 seconds
所以你在第一个被解雇之前打电话给下一个Toast。在线程中尝试更长的时间。
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