Edit text Max length and show the length in the texview

android

Solution

To set the max length of the EditText (pick one or the other):

In your XML file (recommended), use the property `android:maxLength="150"` Ex:

<EditText
    android:id="@+id/yourEditTextId"
    ...
    android:maxLength="150" />

Programmatically (in your `onCreate` method), like so:

EditText et = (EditText)findViewById(R.id.yourEditTextId);
et.setFilters(new InputFilter[] { 
    new InputFilter.LengthFilter(150) // 150 is max length
});

To keep a counter of the length left in the EditText:

Add this listener in your `onCreate` method (or anywhere, but it makes sense in `onCreate`):

final EditText et = (EditText)findViewById(R.id.yourEditTextId);
et.addTextChangedListener(new TextWatcher() {
    @Override
    public void afterTextChanged(Editable s) {
        TextView tv = (TextView)findViewById(R.id.yourTextViewId);
        tv.setText(String.valueOf(150 - et.length()));
    }

    @Override
    public void onTextChanged(CharSequence s, int st, int b, int c) 
    { }
    @Override
    public void beforeTextChanged(CharSequence s, int st, int c, int a) 
    { }
});

Problem

I have a edit text and a text view and I want to set a Max length in my edit text and it show in my text view and every time a user input a characters it will minus the number of character. For example I set the Max length of my edit text to 150 and if the user input 150 characters he/she cannot input any-more. How to fix this issue?

Original source

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