error: incompatible types: TextView cannot be converted to GestureDetector in AndroidStudio

Question

package com.example.pranesh.swiperdiaper

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.view.MotionEvent;
import android.view.GestureDetector;
import android.support.v4.view.GestureDetectorCompat;



public class MainActivity extends ActionBarActivity implements 
GestureDetector.OnGestureListener,
GestureDetector.OnDoubleTapListener{

private GestureDetector akashMessage;
private GestureDetectorCompat gestureDetector;

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    akashMessage = (TextView)findViewById(R.id.akashMessage);
    this.gestureDetector=new GestureDetectorCompat(this,this);
    gestureDetector.setOnDoubleTapListener(this);
}
//gesture begins//
@Override
public boolean onSingleTapConfirmed(MotionEvent motionEvent) {
    akashMessage.setText("onSingleTapConfirmed");
    return true;
}

@Override
public boolean onDoubleTap(MotionEvent motionEvent) {
    akashMessage.setText("onDoubleTap");
    return true;
}

@Override
public boolean onDoubleTapEvent(MotionEvent motionEvent) {
    akashMessage.setText("onDoubleTapEvent");
    return true;
}

@Override
public boolean onDown(MotionEvent motionEvent) {
    akashMessage.setText("onDown");
    return true;
}

@Override
public void onShowPress(MotionEvent motionEvent) {

}

@Override
public boolean onSingleTapUp(MotionEvent motionEvent) {
    akashMessage.setText("onSingleTapUp");
    return true;
}

@Override
public boolean onScroll(MotionEvent motionEvent, MotionEvent motionEvent1, float v, float v1) {
    akashMessage.setText("onScroll");
    return true;
}

@Override
public void onLongPress(MotionEvent motionEvent) {

}

@Override
public boolean onFling(MotionEvent motionEvent, MotionEvent motionEvent1, float v, float v1) {
    akashMessage.setText("onFling");
    return true;
}

//gesture ends//


@Override
public boolean onTouchEvent(MotionEvent event) {
    this.gestureDetector.onTouchEvent(event);
    return super.onTouchEvent(event);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
 }
}

This is my simple android app program. the problem is i am gettinng an error: incompatible types: TextView cannot be converted to GestureDetector as well as error: cannot find symbol method setText(String)

please help me to find my bug Thank You.

Answer 1

What logcat throws

error: incompatible types: TextView cannot be converted to GestureDetector as well as error: cannot find symbol method setText(String)

NOT private GestureDetector akashMessage;

DO private TextView akashMessage;

Pass TextView Not GestureDetector . Just Replace it

Answer 2

You have declared akashMessage as GestureDetector Later on you are trying to assign a TextView to it. That's why you are getting error as "TextView cannot be converted to GestureDetector".

change private GestureDetector akashMessage; to private TextView akashMessage;
and check IDs in xml file.