android:每行 TextView 限制为 10 个字符

Question

我从 EditText 读取值并将其写入 TextView

editTitle1.addTextChangedListener(new TextWatcher() {
              public void afterTextChanged(Editable s) {
              }

              public void beforeTextChanged(CharSequence s, int start, int count, int after) {
              }

              public void onTextChanged(CharSequence s, int start, int before, int count) {
                  s = editTitle1.getText().toString();
                  textTitle1.setText(s);

              }
           });

我希望它在一行中 - 最多 10 个字符，所以如果所有 20 个字符 - 它在 TextView 中是两行，每行 10 个字符。我该怎么做？我尝试 android:maxLength="10"但它没有帮助

Answer 1

定义一个方法，返回一个格式化为每行 10 个字符的字符串:

public String getTenCharPerLineString(String text){

    String tenCharPerLineString = "";
    while (text.length() > 10) {

        String buffer = text.substring(0, 10);
        tenCharPerLineString = tenCharPerLineString + buffer + "/n";
        text = text.substring(10);
    }

    tenCharPerLineString = tenCharPerLineString + text.substring(0);
    return tenCharPerLineString;
}