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CustomLoadingView

a loadingview that extends a surfaceview

公司项目的一个需求,一个比较简单的自定义动画加载,试用surfaceview绘制,surfaceview的双缓存机制绘制效率非常高。

效果图,真机上运行更流畅

image

使用:

     view.setMinRadius(20);
     view.setMaxRadius(50);
     view.setBallOneColor(getResources().getColor(R.color.colorAccent));
     view.setCenterBallColor(getResources().getColor(R.color.colorAccent));
     view.setBallTwoColor(getResources().getColor(R.color.colorAccent));

核心代码:

       TimerTask task = new TimerTask() {
                @Override
                public void run() {
                    try {
                        canvas = holder.lockCanvas();
                        if (canvas != null)
                            drawLoadingView();
                        //释放画布
                    } catch (Exception e) {
                    } finally {
                        if (canvas != null)
                            holder.unlockCanvasAndPost(canvas);
                    }
                }
            };

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a loadingview that extends a surfaceview

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