package com.nguyenmp.ErrorTest;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MyActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //Init the UI
        setContentView(R.layout.main);

        //Create a new handler, passing it the current activity context
        final Handler handler = new MyHandler(MyActivity.this);

        //Bind a listener to the button on the UI
        View view = findViewById(R.id.button);
        view.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                //Start a new thread that will send a message to that handler
                new MyThread(handler).start();
            }

        });
    }

    private class MyThread extends Thread {
        private final Handler mHandler;

        MyThread(Handler handler) {
            mHandler = handler;
        }

        @Override
        public void run() {
            //Dispatch message to UI thread asynchronously
            Looper.prepare();
            mHandler.dispatchMessage(mHandler.obtainMessage());
        }
    }

    private class MyHandler extends Handler {
        private final Context mContext;

        MyHandler(Context context) {
            mContext = context;
        }

        @Override
        public void handleMessage(Message msg) {
            //Show that we got the message
            AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
            builder.setTitle("HelloWorld");
            builder.setMessage("It worked!");
            builder.show();

            //Another variant of showing that we got the message
            Toast.makeText(mContext, "Message Received", Toast.LENGTH_SHORT).show();

            System.out.println("Yeah");
        }
    }
}