Android set max max limit in bytes

Question

In android, I want editing text with a limit of 255 bytes, so when a user tries to exceed this limit, he will not allow him to write.

All the filters I've seen use character restriction, even in the xml layout.

So, how can I set the filter in edittext to limit to 255 bytes?

Answer 1

One solution will be.

• Use TextWatcher in EditText to get a line of typed text.
• Use myString.getBytes (). length; to get the size of the string in bytes.

• perform an action in EditText based on the threshold set in bytes.

  final int threshold = 255;
  EditText editText = new EditText(getActivity());
  editText.addTextChangedListener(new TextWatcher() {
      @Override
      public void beforeTextChanged(CharSequence s, int start, int count, int after) {
  
      }
  
      @Override
      public void onTextChanged(CharSequence s, int start, int before, int count) {
          int i = s.toString().getBytes().length;
          if(i < threshold){
              //Action needed
          }
      }
  
      @Override
      public void afterTextChanged(Editable s) {
  
      }
  });
  

You will need to apply this example to your own solution.

Answer 2

(char) 2 , : maxlength = "128" editText, ,

                            <EditText

                                android:layout_width="match_parent"
                                android:layout_height="wrap_content"
                                android:ems="10"
                                android:inputType="textPersonName"
                                android:lines="1"
                                android:maxLength="128"
                                android:singleLine="true"
                                android:visibility="visible" />