Android onTouch event not happening?

Hi, thanks for taking the time to read this. For several days I have been researching and bullying my code to get a textual representation, to update the score when I touch the ghost.

This is my first Android app and, as far as I can tell (I added Log.w () to ontouch, but the log is never laid out, and the rating does not increase or even does not appear) onTouch (View v, MotionEvent event) is never called. Below is my code, any hints or questions are welcome.

package com.cs461.Ian;

//TODO:Add accelerometer support
//TODO:Add Clickable ghosts
//TODO:Add camera background
/*Completed:(As of 2:30am 4/16)
 * Activity launches
 * Ghost appears on screen
 * Ghost will randomly move around the screen
 */

import java.util.Random;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.View;
import android.widget.TextView;

public class CameraActivity extends Activity{

Bitmap g;
Ghost a;
Ghost still;
SurfaceHolder mSurfaceHolder;
boolean firsttime=true;
int draw_x,draw_y,xSpeed,ySpeed,score=0;
TextView t;




@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.game);
    a = new Ghost(getApplicationContext());
    still = new Ghost(getApplicationContext());
    //requestWindowFeature(Window.FEATURE_NO_TITLE);
    a.Initalize(BitmapFactory.decodeResource(getResources(), R.drawable.ghost), 20, 20);
    still.Initalize(BitmapFactory.decodeResource(getResources(), R.drawable.ghost), 120, 120);
    t = (TextView) findViewById(R.id.t);
    t.setText("TEST SCORE TO SEE IF TEXTVIEW SHOWS UP");

    a.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN){
                score++;
                t.setText("Score: "+score);

            }
            return true;
        }
    });
    still.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN){
                score++;
                t.setText("Score: "+score);
                Log.w("CLICKED","Clicked on ghost "+score+" times");

            }
            return true;
        }
    });



    setContentView(new Panel(this));
}


class Panel extends View {
    public Panel(Context context) {
        super(context);
    }

    @Override
    public void onDraw(Canvas canvas) {
        //g.Initalise(BitmapFactory.decodeFile("/res/drawable-hdpi/ghost.png"), 200, 150, 5, 5);;
        update(canvas);
        invalidate();
    }

    /*Places ghost on screen and bounces it around in the screen. My phone is apparently only API level 4(the most up to date is 15) so i didn't code it
     *for the accelerometer yet.
     */
    public void update(Canvas canvas) {
        Random rand = new Random();
        if(firsttime){
            draw_x = Math.round(System.currentTimeMillis() % (this.getWidth()*2)) ;
            draw_y = Math.round(System.currentTimeMillis() % (this.getHeight()*2)) ;
            xSpeed = rand.nextInt(10);
            ySpeed = rand.nextInt(10);

            firsttime=false;
        }
         draw_x+=xSpeed;
         draw_y+=ySpeed;
        draw_x = Math.round(System.currentTimeMillis() % (this.getWidth()*2)) ;
        draw_y = Math.round(System.currentTimeMillis() % (this.getHeight()*2)) ;
         if (draw_x>this.getWidth()){
          draw_x = (this.getWidth()*2)-draw_x;
          xSpeed = rand.nextInt(10);
          if(xSpeed >=5)
              xSpeed=-xSpeed;
         }
         if (draw_y>this.getHeight()){
          draw_y = (this.getHeight()*2)-draw_y;
          ySpeed = rand.nextInt(10);
          if(ySpeed >=5)
              ySpeed=-ySpeed;
         }
         g = BitmapFactory.decodeResource(getResources(), R.drawable.ghost);
         canvas.drawBitmap(g, draw_x, draw_y, null);
         still.draw(canvas);
         a.update(canvas);


        }
    }


}

Forgot to add a Ghost class:

package com.cs461.Ian;

import java.util.Random;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;

public class Ghost extends View implements View.OnTouchListener{
public Ghost(Context context) {
    super(context);
    // TODO Auto-generated constructor stub
}

private Bitmap mAnimation;
private int mXPos;
private int mYPos;
private Rect mSRectangle;
private int mSpriteHeight;
private int mSpriteWidth;
View v;
Rect dest;
int score = 0;

/*public Ghost() {
    mSRectangle = new Rect(0,0,0,0);
    mXPos = 80;
    mYPos = 200;
}*/



public void Initalize(Bitmap theBitmap, int Height, int Width) {
    mSRectangle = new Rect(0,0,0,0);
    mXPos = 80;
    mYPos = 200;
    mAnimation = theBitmap;
    mSpriteHeight = Height;
    mSpriteWidth = Width;
    mSRectangle.top = 0;
    mSRectangle.bottom = mSpriteHeight;
    mSRectangle.left = 0;
    mSRectangle.right = mSpriteWidth;
    dest = new Rect(mXPos, mYPos, mXPos + mSpriteWidth,
            mYPos + mSpriteHeight);

}
public void draw(Canvas canvas) {


    canvas.drawBitmap(mAnimation, mXPos, mYPos, null);
}

public void update(Canvas canvas) {
    new Random();

    mXPos = Math.round(System.currentTimeMillis() % (canvas.getWidth()*2)) ;
    mYPos = Math.round(System.currentTimeMillis() % (canvas.getHeight()*2)) ;
    if (mXPos>canvas.getWidth())
      mXPos = (canvas.getWidth()*2)-mXPos;
    if (mYPos>canvas.getHeight())
      mYPos = (canvas.getHeight()*2)-mYPos;

     draw(canvas);


}

public Rect getRect() {
    return mSRectangle;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
    score++;
    //CameraActivity.t.setText("Score: "+CameraActivity.score);
    Log.w("CLICKED","Clicked on ghost "+score+" times");
    return true; //doesn't work if returns false either
}


}
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1 answer

dispatchTouchEvent(MotionEvent event) Activity, , . false, MotionEvent \layout , .

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