比如最大10個字元，若超過10個，則顯示9或者8個字元加省略號.

啊啊啊啊啊

哎哎哎啊...

哎哎哎啊a...

aaaaaaaa...

public class CalTextLength {

public static String handleText(String str, int maxLen) {
    if (TextUtils.isEmpty(str)) {
        return str;
}
    int count = 0;
    int endIndex=0;
    for (int i = 0; i < str.length(); i++) {
        char 
 
item = str.charAt(i);
        if (item < 128) {
            count = count + 1;
} else {
            count = count + 2;
}
        if(maxLen==count || (item>=128 && maxLen+1==count)){
            endIndex=i;
}
    }
    if (count <= maxLen) {
        return str;
} else {

        return 
 
str.substring(0, endIndex) + "...";
}

}

}

private static final int maxLen=12; //名字最大字元數