Android Tips(二)

发表于   |   分类于   |     |   阅读次数

判断应用是否联网

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
/**
 * 判断是否联网
 *
 * @param context
 * @return boolean true,已联网;false,断网状态
 */
public static boolean isNetwork(Context context) {
    try {
        ConnectivityManager manger = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = manger.getActiveNetworkInfo();
        return (info != null && info.isConnected());
    } catch (Exception e) {
        Log.e(TAG, "判断是否有网络出错");
        return false;
    }
}

判断字符是否中文

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
/**
 * @Description: 判断字符是否中文
 * @param c
 *            字符
 * @return boolean
 * @author
 * @data
 */
public boolean isChinese(char c) {
	Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
	if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
			|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
			|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
			|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
			|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
			|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
		return true;
	}
	return false;
}

显示/隐藏软键盘

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
/* 显示软键盘 */
public void ShowSoftKeyborad(Context context) {
	InputMethodManager inputMethodManager = (InputMethodManager) context
			.getSystemService(Context.INPUT_METHOD_SERVICE);
	inputMethodManager.showSoftInput(this,
			InputMethodManager.RESULT_UNCHANGED_SHOWN);
}

/* 隐藏软键盘 */
public void hideSoftKeyborad(Context context) {
	InputMethodManager inputMethodManager = (InputMethodManager) context
			.getSystemService(Context.INPUT_METHOD_SERVICE);
	inputMethodManager.hideSoftInputFromWindow(getWindowToken(),
			InputMethodManager.RESULT_UNCHANGED_HIDDEN);
}

热评文章