Android程序首页Loading效果

不推荐这样写。
推荐这篇：http://gundumw100.iteye.com/blog/1059297

又是好久没更新博客了，呵呵，忙着上班，忙着带团！一句话，忙着生活赚钱!好吧，废话不多少，今天要写的是loading效果，先给大家看个效果图


程序在加载的时候下面的进度条不断变化，我这里并没有用android自带的动画，写的是一种方法，方法很简单，就是不断地绘制2张图片，利用5个ImageView不断设置不同背景。利用handler来动态更新。两张图片用ps做出来，见下图:




第二张图片是白色的

下面请看代码

//不断发送消息，切换图片
private void playAnimation()
	{
		new Thread(){
			@Override
			public void run()
			{
				while(true)
				{
					for(int i=5;i>0;i--)
					{
						handler.sendEmptyMessage(i);
						try {
							this.sleep(300);
						} catch (InterruptedException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
					}

				}

			}

		}.start();
	}
//handler接受消息进行变化
handler=new Handler(){

			@Override
			public void handleMessage(Message msg) {
				 c.getResources();
				switch(msg.what)
				{
				case 1:
					imgview_1.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_blue));
					imgview_2.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_3.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_4.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_5.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					break;
				case 2:
					imgview_1.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_2.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_blue));
					imgview_3.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_4.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_5.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					break;
				case 3:
					imgview_1.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_2.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_3.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_blue));
					imgview_4.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_5.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					break;
				case 4:
					imgview_1.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_2.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_3.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_4.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_blue));
					imgview_5.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					break;
				case 5:
					imgview_1.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_2.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_3.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_4.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_white));
					imgview_5.setImageDrawable(c.getResources().getDrawable(R.drawable.loading_blue));
					break;
				}
			}
		};

当然，也可以把图片换成其他形状的比如说圆形，大家可以发挥自己的想象力。

这边是我弄的图片:
好啦，这就是大体上的代码，布局文件很简单，就不贴上啦,有问题的朋友可以联系我[e-mail]，祝大家安好！
http://www.leepood.org/#/new-to-android/listview_page/

android监控程序的开启与关闭
http://www.leepood.org/#/new-to-android/android-monitor-apps/