Android人物精灵动画练习

最新推荐文章于 2020-02-24 23:24:56 发布

MrByte

最新推荐文章于 2020-02-24 23:24:56 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/u013078986/article/details/46878597

这是一个实现Android平台上的简单人物精灵动画的代码示例。通过SurfaceView和Bitmap资源，创建了一个不断循环播放的人物动画效果，每帧间隔70毫秒。

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package com.example.move;

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.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;

public class mySurfaceView extends SurfaceView implements Callback, Runnable {
	private SurfaceHolder sfh;
	private Paint paint;
	private int x = 100, y = 100;
	private Thread th;
	private Bitmap bmp;
	private Bitmap bmps[] = new Bitmap[12];
	private int curFrame = 0;
	int frame;
	private Bitmap bg;

	public mySurfaceView(Context context) {
		super(context);
		// TODO 自动生成的构造函数存根
		sfh = this.getHolder();
		sfh.addCallback(this);
		paint = new Paint();
		paint.setColor(Color.YELLOW);
		bg = BitmapFactory.decodeResource(getResources(), R.drawable.bg);

		frame = R.drawable.anim001;
		for (int i = 0; i < 12; i++) {
			bmps[i] = BitmapFactory.decodeResource(getResources(), frame);
			frame++;
		}
	}

	@Override
	public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
		// TODO 自动生成的方法存根

	}

	@Override
	public void surfaceCreated(SurfaceHolder arg0) {
		// TODO 自动生成的方法存根
		// myDraw();
		th = new Thread(this);
		th.start();

	}

	@Override
	public void surfaceDestroyed(SurfaceHolder arg0) {
		// TODO 自动生成的方法存根

	}

	public void myDraw() {
		Canvas canvas = sfh.lockCanvas();
		// 绘制背景
		canvas.drawBitmap(bg, 0, 0, paint);
		// 绘制人物
		canvas.drawBitmap(bmps[curFrame], this.getWidth() / 2, this.getHeight() - 450, paint);
		sfh.unlockCanvasAndPost(canvas);
	}

	public void logic() {
		if (curFrame > 10) {
			curFrame = 0;
		} else {
			curFrame++;
		}
	}

	@Override
	public void run() {
		// TODO 自动生成的方法存根
		while (true) {
			myDraw();
			logic();
			try {
				Thread.sleep(70);
			} catch (InterruptedException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
			System.out.println("thread running...");
		}
	}

}