方法一：
view plaincopy to clipboardprint?// 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 ;@Overridepublic void beforeTextChanged(CharSequence s, int arg1, int arg2,int arg3) {temp = s;}@Overridepublic void onTextChanged(CharSequence s, int arg1, int arg2,int arg3) {}@Overridepublic 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 ;@Overridepublic void beforeTextChanged(CharSequence s, int arg1, int arg2,int arg3) {temp = s;}@Overridepublic void onTextChanged(CharSequence s, int arg1, int arg2,int arg3) {}@Overridepublic 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];
