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Resources resources = getResources();//获得res资源对象
Configuration config = resources.getConfiguration();//获得设置对象
DisplayMetrics dm = resources .getDisplayMetrics();//获得屏幕参数：主要是分辨率，像素等。
config.locale = Locale.SIMPLIFIED_CHINESE; //简体中文
resources.updateConfiguration(config, dm);

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 /* 
     * 将科学计数法转换为常规计数法
     */
    
	public static String ConScience2NumValue(String str)
	{
		int len = Integer.parseInt(str.substring(getNum(str),getNum(str)+1));
		String bit = "1";
		for(int i = 0 ; i<len;i++)
		{

jimbray

    /**
     * 金额格式化
     * @param s 金额
     * @param len 小数位数
     * @return 格式后的金额
     */
    public static String FormatCurrency(String s, int len) {
        if (s == null || s.length() < 1) {
            return "0.00";
        }

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    /**
     * /** 
     * 根据手机的分辨率从 dp 的单位 转成为 px(像素) 
     */  
    public static int dip2px(Context context, int dpValue) {
    	final float scale = context.getResources().getDisplayMetrics().density;  
        return (int) (dpValue * scale + 0.5f);  
    }
    
    /** 

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	/**
	 * 获取屏幕大小
	 * @param context
	 * @return
	 */
	public static int[] getScreenSize(Context context) {
		DisplayMetrics dm = new DisplayMetrics();
		//获取屏幕信息
		((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(dm);
		int screenWidth = dm.widthPixels;

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	/**
	 * 根据value寻找key
	 * @param map
	 * @param value
	 * @return
	 */
	public static String getMapKeyByValue(HashMap<String, String> map, Object value) {
		Set<String> kset = map.keySet();
		for(String ks : kset){
			if(value.equals(map.get(ks))) {

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	public static String getCurVersionName(Context context) {
		String versionName = null;
		
		try {
			PackageInfo pInfo = context.getPackageManager().getPackageInfo(
					context.getPackageName(), 0);
			versionName = pInfo.versionName;
		} catch (NameNotFoundException e) {
			versionName = "没有版本号";
		}

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	public static Object reflect2(Object obj) {
		if (obj == null) 
			return null;  
        Field[] fields = obj.getClass().getDeclaredFields();  
        for (int j = 0; j < fields.length; j++) {  
            fields[j].setAccessible(true);  
            // 字段名  
            System.out.print(fields[j].getName() + ",");  
            // 字段值  
            if (fields[j].getType().getName().equals(  

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mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer);
drawerToggle = setupDrawerToggle();
mDrawerLayout.setDrawerListener(drawerToggle);

private ActionBarDrawerToggle setupDrawerToggle() {
	return new ActionBarDrawerToggle(this, mDrawerLayout, mToolbar,
			R.string.app_name, R.string.app_name);
}

@Override

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/**
 * 判断是否是 Tablet
 *
 * @param activity Activity
 * @return true, if is tablet device
 */
public static boolean isTablet(Activity activity) {
    DisplayMetrics dm = new DisplayMetrics();
    activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
    double diagonalPixels = Math.sqrt(Math.pow(dm.widthPixels, 2) + Math.pow(dm.heightPixels, 2));