Android editText 输入字数限制
方法一：
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// 输入框限制输入字数
editText.addTextChangedListener(new TextWatcher() {
private CharSequence temp;
private boolean isEdit = true;
private int selectionStart ;
private int selectionEnd ;
@Override
public void beforeTextChanged(CharSequence s, int arg1, int arg2,
int arg3) {
temp = s;
}
@Override
public void onTextChanged(CharSequence s, int arg1, int arg2,
int arg3) {
}
@Override
public void afterTextChanged(Editable s) {
selectionStart = editText.getSelectionStart();
selectionEnd = editText.getSelectionEnd();
Log.i("gongbiao1",""+selectionStart);
if (temp.length() > Constant.TEXT_MAX) {
Toast.makeText(KaguHomeActivity.this,
R.string.edit_content_limit, Toast.LENGTH_SHORT)
.show();
s.delete(selectionStart-1, selectionEnd);
int tempSelection = selectionStart;
editText.setText(s);
editText.setSelection(tempSelection);
}
}
});
// 输入框限制输入字数
editText.addTextChangedListener(new TextWatcher() {
private CharSequence temp;
private boolean isEdit = true;
private int selectionStart ;
private int selectionEnd ;
@Override
public void beforeTextChanged(CharSequence s, int arg1, int arg2,
int arg3) {
temp = s;
}
@Override
public void onTextChanged(CharSequence s, int arg1, int arg2,
int arg3) {
}
@Override
public void afterTextChanged(Editable s) {
selectionStart = editText.getSelectionStart();
selectionEnd = editText.getSelectionEnd();
Log.i("gongbiao1",""+selectionStart);
if (temp.length() > Constant.TEXT_MAX) {
Toast.makeText(KaguHomeActivity.this,
R.string.edit_content_limit, Toast.LENGTH_SHORT)
.show();
s.delete(selectionStart-1, selectionEnd);
int tempSelection = selectionStart;
editText.setText(s);
editText.setSelection(tempSelection);
}
}
});方法二：
利用EditText 可以设置filter的特性，自定义一个LengthFilter，当输入字数超过限制时 ，做出自定义的提示view plaincopy to clipboardprint?
// 输入框限制输入字数
InputFilter[] filters = new InputFilter[1];
补充：移动开发 , Android ,
