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Android Threads and Services Threads in Android Handle it!

shivkumar loka
shivkumar loka
4,066 Points
Posted by shivkumar loka
shivkumar loka
4,066 Points

Error in sending message assignment. ./MainActivity.java:18: error: cannot find symbol message.obj = hello;

./MainActivity.java:18: error: cannot find symbol message.obj = hello; ^ symbol: variable obj location: variable message of type Message 1 error

MainActivity.java 
public class MainActivity extends Activity {
  Button button;
  TwitterClient twitterClient = new TwitterClient();
  @Override
  public void onCreate(Bundle savedInstanceState) {
    setContentView(R.layout.activity_main);

    final TwitterThread twitterThread = new TwitterThread();
    twitterThread.setName("TwitterThread");
    twitterThread.start();

    button = (Button) findViewById(R.id.update_button);
    button.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v){
        Message message = Message.obtain();
        String hello = "helloString";
        message.obj = hello;
        twitterThread.handler.sendMessage(message);
      }
    });
  }

  class TwitterThread extends Thread {
    TwitterHandler handler;
    @Override
    public void run() {
      Looper.prepare();
      handler = new TwitterHandler();
      Looper.loop();
    }
  }

  class TwitterHandler extends Handler {
    @Override
    public void handleMessage(Message msg) {
      twitterClient.update();
    }
  }
}