android点滴5

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一些小效果的实现
http://www.see-source.com/blog/300000032/1425.html

跨应用(同一个程序内的多个进程之间)数据读写的替代类(可替代SharedPreferences)
https://github.com/grandcentrix/tray

Android常用开源框架Proguard混淆解决方案
https://github.com/offbye/Android-ProGuardRules

五年 Android 开发,让我 “刻骨铭心” 的那些坑
http://www.open-open.com/lib/view/open1472741571941.html

Android实现不重复启动APP的方法
http://www.open-open.com/lib/view/open1447489467116.html

Cool Android Apis 整理(一)
http://oakzmm.com/2015/08/04/cool-Android-api/
http://oakzmm.com/2015/08/11/cool-Android-api-2/
http://oakzmm.com/2015/09/07/cool-android-api-3/


http://www.open-open.com/news/view/ea7c88
http://www.open-open.com/news/view/95a84a

不要在Android的Application对象中缓存数据!

在Android library中不能使用switch-case语句访问资源ID的原因分析及解决方案

禁止RatingBar选择 或 改变
加这个属性,android:isIndicator="true"

setDuplicateParentStateEnabled 子控件获得父控件的状态,对应android:duplicateParentState
setAddStatesFromChildren 同上相反,对应android:addStatesFromChildren
这两个属性不能同时设置,同时设置会产生异常

Android开发最佳实践
http://www.csdn.net/article/2015-10-05/2825847

你还在写一堆的findViewById()吗?
自定义一个方法:
public <T T extends View> T $(int viewID) {    return (T) findViewById(viewID);}

然后不管是什么类型的View,直接一个$方法搞定,类似JQuery



Android中strings.xml占位符
<string name="data">整数型:%1$d,浮点型:%2$.3f,字符串:%3$s</string>
其中%后面是占位符的位置,从1开始,
$ 后面是填充数据的类型
%d:表示整数型;
%f :表示浮点型,其中f前面的.3表示小数的位数
%s:表示字符串

String data = getResources().getString(R.string.data);data = String.format(data, 100, 100.333, "2014-02-26");//整数型:100,浮点型:100.333,字符串:2014-02-26


动态设置全屏,退出全屏
/**设置全屏**/WindowManager.LayoutParams params = getWindow().getAttributes();params.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;getWindow().setAttributes(params);getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS); /**退出全屏**/WindowManager.LayoutParams params = getWindow().getAttributes();params.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);getWindow().setAttributes(params);getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);


Cool Android Apis 整理(一)
http://www.open-open.com/lib/view/open1439219767176.html
http://blog.danlew.net/2014/03/30/android-tips-round-up-part-1/

Android Studio Tips -- 布局预览
http://www.open-open.com/lib/view/open1437404317881.html

使用Android Support Annotations优化你的代码
http://www.open-open.com/lib/view/open1437448397115.html

UrlQuerySanitizer
一个很方便用来处理url链接的工具类,之前开发过程中遇到需要处理支付宝网页url,获取里面post参数,当时使用String的各种接口进行处理,如果用UrlQuerySanitizer的话就简单多了。比如现在有个Url=http://example.com/?name=Mark,我们使用UrlQuerySanitizer拿到name的值:

Simple example:
UrlQuerySanitizer sanitizer = new UrlQuerySanitizer();sanitizer.setAllowUnregisteredParamaters(true);sanitizer.parseUrl("http://example.com/?name=Joe+User"); String name = sanitizer.getValue("name")); // name now contains "Joe_User" Register ValueSanitizers to customize the way individual parameters are sanitized: 

UrlQuerySanitizer sanitizer = new UrlQuerySanitizer();sanitizer.registerParamater("name", UrlQuerySanitizer.createSpaceLegal());sanitizer.parseUrl("http://example.com/?name=Joe+User");String name = sanitizer.getValue("name")); // name now contains "Joe User". (The string is first decoded, which // converts the '+' to a ' '. Then the string is sanitized, which // converts the ' ' to an '_'. (The ' ' is converted because the default unregistered parameter sanitizer does not allow any special characters, and ' ' is a special character.)


/** * 获得url中对应key的参数值(value) *  * @param url * @param key * @return */public String getParameter(String url, String key) {if (!TextUtils.isEmpty(url)) {UrlQuerySanitizer sanitizer = new UrlQuerySanitizer(url);sanitizer.setAllowUnregisteredParamaters(true);return sanitizer.getValue(key);}return null;}


PhoneNumberUtils
public static String formatNumber (String phoneNumber, String defaultCountryIso)
PhoneNumverUtils提供了一系列方法用来格式化电话号码
String num = "031185203009";PhoneNumberUtils util = new PhoneNumberUtils();String numFormated =  util.formatNumber(num,"CN");

numFormated = 0311-8520-3009
Breaks the given number down and formats it according to the rules for the country the number is from.

Parameters
sourceThe phone number to format
Returns
A locally acceptable formatting of the input, or the raw input if formatting rules aren't known for the number

Android Design Support Library使用详解
http://blog.csdn.net/eclipsexys/article/details/46349721
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