iremce iremce - 1 year ago 75
Android Question

Android fatal exception: Can't create handler inside thread that has not called Looper.prepare()

I have read similar questions about this problem and tried to find a solution but I have not figure out what is the reason in my case. My program's code rough is below :

public class ReportSystem extends Activity implements SensorEventListener , Runnable{

ReportLocation reportObj = new ReportLocation(this); //my other class
Thread thread_send = new Thread(this);

Handler handler = new Handler() {
public void handleMessage(Message message) {

public void onCreate(Bundle savedInstanceState){

public void onSensorChanged(SensorEvent event){

if(event.values[0] > 10)
thread_send.start(); // thread is started..

public void run(){

reportObj.send(); //connect with server and send data by the help of RepotLocation class' send function
}//end class

What should I do to solve this problem ?

Answer Source

Try this:

public void run(){
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