package com.gp;
import java.util.Vector;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.Log;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.GestureDetector.OnGestureListener;
import android.view.SurfaceHolder.Callback;
import android.view.View.OnTouchListener;
/**
*
* @author Himi
*
*/
public class MySurfaceView extends SurfaceView implements Callback, Runnable, OnGestureListener, OnTouchListener {
private SurfaceHolder sfh;
private Paint paint;
private Thread th;
private boolean flag;
private Canvas canvas;
private int screenW, screenH;
//检测手势的类
private GestureDetector gesture;
//保存所有添加的icon位图
private Vector<Bitmap> vec = new Vector<Bitmap>();
/**
* SurfaceView初始化函数
*/
public MySurfaceView(Context context) {
super(context);
sfh = this.getHolder();
sfh.addCallback(this);
paint = new Paint();
paint.setColor(Color.WHITE);
paint.setAntiAlias(true);
setFocusable(true);
//实例GestureDetector
gesture = new GestureDetector(this);
//为当前视图设置触屏监听器
this.setOnTouchListener(this);
}
/**
* SurfaceView视图创建,响应此函数
*/
@Override
public void surfaceCreated(SurfaceHolder holder) {
screenW = this.getWidth();
screenH = this.getHeight();
flag = true;
//实例线程
th = new Thread(this);
//启动线程
th.start();
}
/**
* 游戏绘图
*/
public void myDraw() {
try {
canvas = sfh.lockCanvas();
if (canvas != null) {
canvas.drawColor(Color.BLACK);
for (int i = 0; i < vec.size(); i++) {
canvas.drawBitmap(vec.elementAt(i), i * 5, 50, paint);
}
}
} catch (Exception e) {
// TODO: handle exception
} finally {
if (canvas != null)
sfh.unlockCanvasAndPost(canvas);
}
}
/**
* 触屏事件监听
*/
@Override
public boolean onTouchEvent(MotionEvent event) {
return true;
}
/**
* 按键事件监听
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
return super.onKeyDown(keyCode, event);
}
/**
* 游戏逻辑
*/
private void logic() {
}
@Override
public void run() {
while (flag) {
long start = System.currentTimeMillis();
myDraw();
logic();
long end = System.currentTimeMillis();
try {
if (end - start < 50) {
Thread.sleep(50 - (end - start));
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
/**
* SurfaceView视图状态发生改变,响应此函数
*/
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
/**
* SurfaceView视图消亡时,响应此函数
*/
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
flag = false;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
return gesture.onTouchEvent(event);
}
//按下
@Override
public boolean onDown(MotionEvent e) {
Log.e("", "onDown");
return false;
}
// 短暂按下抬起
@Override
public boolean onSingleTapUp(MotionEvent e) {
Log.e("", "onSingleTapUp");
return false;
}
// 先短暂按下 、然后滑动、最后 抬起
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
Log.e("", "onFling");
//往图片容器里添加一个新的icon位图
vec.add(BitmapFactory.decodeResource(this.getResources(), R.drawable.icon));
return false;
}
// 先短暂按下 、然后滑动
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
Log.e("", "onScroll" + distanceX + "---" + distanceY);
return false;
}
// 先短暂按下 、短按不滑动
@Override
public void onShowPress(MotionEvent e) {
Log.e("", "onShowPress");
}
// 长按不滑动
@Override
public void onLongPress(MotionEvent e) {
Log.e("", "onLongPress");
}
}
应用源码之(触屏手势识别).zip
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2024-04-21
11:00:18
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