复制代码- package com.roiding.sample;
- import android.app.Activity;
- import android.os.Bundle;
- import android.util.Log;
- import android.view.MotionEvent;
- import android.view.View;
- import android.view.View.OnTouchListener;
- import android.widget.Button;
- public
- class Touch extends Activity {
- /** Called when the activity is first created. */
- @Override
- public
- void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- final Button btn = (Button) findViewById(R.id.btn_hello);
- btn.setOnTouchListener(new OnTouchListener() {
- int[] temp = new
- int[] { 0, 0 };
- public
- boolean onTouch(View v, MotionEvent event) {
- int eventaction = event.getAction();
- Log.i("&&&", "onTouchEvent:" + eventaction);
- int x = (int) event.getRawX();
- int y = (int) event.getRawY();
- switch (eventaction) {
- case MotionEvent.ACTION_DOWN: // touch down so check if the
- temp[0] = (int) event.getX();
- temp[1] = y - v.getTop();
- break;
- case MotionEvent.ACTION_MOVE: // touch drag with the ball
- v.layout(x - temp[0], y - temp[1], x + v.getWidth()
- - temp[0], y - temp[1] + v.getHeight());
- v.postInvalidate();
- break;
- case MotionEvent.ACTION_UP:
- break;
- }
- return
- false;
- }
- });
- }
- }
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