Android programming method to implement EditText word count monitoring and display

This article describes the Android programming method of implementing EditText word count monitoring and display. Share it for your reference, as follows:

When developing applications, the number of words users enter is often limited, such as posting comments or other things. Here is a simple demo

EditText et_content;//Define a text input boxTextView tv_num;// Used to display the remaining wordsint num = 10;//The maximum number of words limited

et_content = (EditText) findViewById(.et_content);
tv_num = (TextView) findViewById(.tv_num);
tv_num.setText("10");

The following is to add a listening listener to the EditText text box

et_content.addTextChangedListener(new TextWatcher() {
  private CharSequence temp;
  private int selectionStart;
  private int selectionEnd;
  @Override
  public void onTextChanged(CharSequence s, int start, int before,
      int count) {
    temp = s;
    ("s="+s);
  }
  @Override
  public void beforeTextChanged(CharSequence s, int start, int count,
      int after) {
  }
  @Override
  public void afterTextChanged(Editable s) {
    int number = num - ();
    tv_num.setText("" + number);
    selectionStart = et_content.getSelectionStart();
    selectionEnd = et_content.getSelectionEnd();
    //("start="+selectionStart+",end="+selectionEnd);
    if (() &gt; num) {
      (selectionStart - 1, selectionEnd);
      int tempSelection = selectionStart;
      et_content.setText(s);
      et_content.setSelection(tempSelection);//Set the cursor at the end    }
  }
});

This will be achieved

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