Android中黄色警告提示消强迫症

写代码的时候，不希望整个工程中到处都是黄色的感叹号，那样的话，打开项目，让人感觉整个项目一点都不清晰。

所以写此贴，将平时碰到的警告全部总结集中起来。 

1：Handler

// This Handler class should be static or leaks might occur:IncomingHandler 
		@SuppressLint("HandlerLeak")
		private Handler handler = new Handler() {
			@Override
			public void handleMessage(Message msg) {
			};
		};

解决方法： 

private Handler handler = new Handler(new Handler.Callback() {
			@Override
			public boolean handleMessage(Message msg) {
				return false;
			}
		});

2：SimpleDateFormat 

// To get local formatting use getDateInstance(), getDateTimeInstance(),
		// or // getTimeInstance(), or use new SimpleDateFormat(String template,Locale  locale) with for example Locale.US for ASCII dates.
		@SuppressLint("SimpleDateFormat")
		SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
				"yyyy-MM-ddHH:mm:ss");

解决方法： 

SimpleDateFormat newSimpleDateFormat = new SimpleDateFormat(
				"yyyy年MM月dd日HH时mm分", Locale.getDefault());