触摸计数更改了图标/图像的Android

Question

I want to make app that can count touch event on Android by changed image/icon that I touched. The app would be like this:

1. App runs and shows an image 1
2. I touch the image 1 and it turns to image 2
3. When I release my finger, it turns to image 1 again
4. And counting by how many image 2 shows up

I'm very new to Android Java programming, and if there is an example project, it would help me so much.

Thanks for help :) *sorry for my English

Answer 1

You can set on touch listener for your imageView:

public class MainAcivity extends Activity {
ImageView img;
TextView mText;
int counter;
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
            counter=0;
            mText=(TextView)findViewById(R.id.textview1);      
            myImageView.setOnTouchListener(new OnTouchListener() {

                    @Override
                    public boolean onTouch(View v, MotionEvent event) {
                            // TODO Auto-generated method stub
                            if(event.getAction()==MotionEvent.ACTION_UP)
                                    myImageView.setImageDrawable(R.drawable.image1);
                            else if(event.getAction()==MotionEvent.ACTION_DOWN){
                                    myImageView.setImageDrawable(R.drawable.image2);
                                    counter++;
                                    mText.setText("Count: "+counter);
                            }
                            return false;
                    }
            });
    }
    ...
}

MotionEvent.ACTION_UP signifies a release event, whereas MotionEvent.ACTION_DOWN signifies touch event.

counter stores the no.of times image 2 was shown, initialize counter to 0 in onCreate() method