Android-SurfaceView示例

public class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback {
    /* 
        SurfaceView功能简述:
        1.Provide a dedicated drawing surface embedded inside of a view hierarchy.
        2.Provide a surface in which a secondary thread can render in to the screen.
        
        SurfaceView注意事项:
        1.All SurfaceView and SurfaceHolder.Callback methods will be called from the UI thread.       
        2.Drawing thread only touches the underlying Surface between SurfaceHolder.Callback.surfaceCreated() 
        and SurfaceHolder.Callback.surfaceDestroyed().
    */

    private SurfaceHolder holder;
    private RenderThread renderThread; // 渲染绘制线程
    private boolean isRender;          // 控制线程

    public MySurfaceView(Context context) {
        super(context);
        holder = this.getHolder();
        holder.addCallback(this);
        renderThread = new RenderThread();
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        isRender = true;
        renderThread.start();
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        isRender = false;
    }

    private class RenderThread extends Thread {
        @Override
        public void run() {
            // 死循环绘制线程
            while (isRender) {
                long startTime = System.currentTimeMillis();
                
                Canvas canvas = null;
                try {
                    // 1.锁定Canvas
                    canvas = holder.lockCanvas();
                    // 2.通过Canvas绘制图形
                    canvas.drawXX(...);

                } catch (Exception e) {
                    // 3.捕获异常,防止异常导致Canvas没有解锁                  
                    e.printStackTrace();

                } finally {
                    // 4.解锁Canvas,把图形更新到屏幕
                    if (canvas != null)
                        holder.unlockCanvasAndPost(canvas);
                }
                
                long endTime = System.currentTimeMillis();
                
                // 性能评定: 每秒绘制次数(帧率FPS), 动画流畅：FPS>=30
                int fps = 1000/(endTime-startTime) 
            }
        }
    }
}

简书: http://www.jianshu.com/p/65313d111a9f
CSDN博客: http://blog.csdn.net/qq_32115439/article/details/76223216
GitHub博客: http://lioil.win/2017/07/27/Android-SurfaceView.html
Coding博客: http://c.lioil.win/2017/07/27/Android-SurfaceView.html