1、代码
1 name_tv = (EditText) findViewById( R.id.name_tv ); 23 name_tv.addTextChangedListener(new TextWatcher() { 4 @Override 5 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 6 } 7 8 @Override 9 public void onTextChanged(CharSequence s, int start, int before, int count) {10 }11 12 @Override13 public void afterTextChanged(Editable s) {14 String string = s.toString().trim();15 16 //限定输入框最多输入18个字节17 int inputLength = string.length();18 int byteLength = string.getBytes().length;19 if (byteLength >= 18) {20 name_tv.setFilters(new InputFilter[]{new InputFilter.LengthFilter(inputLength)});21 } else {22 name_tv.setFilters(new InputFilter[]{new InputFilter.LengthFilter(18)});23 }24 name_tv.setSelection(name_tv.getText().toString().length());25 }26 });
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