EditText patterns

README.md

EditText:

1. Change error color at TextInputLayout
2. Programly clear focus on touch at any view
3. Programly MaxLength of EditText

EditText1.xml

<style name="TextLimitStyle" parent="TextAppearance.AppCompat.Small">
    <item name="android:textColor">@color/colorAccent< /item>
    <item name="android:textStyle">bold</item>
    <item name="android:textSize">18sp</item>
</style>

<style name="TextLimitError" parent="TextAppearance.AppCompat.Small">
    <item name="android:textColor">@color/colorRed</item>
</style>

<android.support.design.widget.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:counterEnabled="true"
    app:counterMaxLength="30"
    app:counterOverflowTextAppearance="@style/TextLimitError"
    app:counterTextAppearance="@style/TextLimitStyle">

    <android.support.design.widget.TextInputEditText
      android:id="@+id/etMessage"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:gravity="top"
      android:hint="Say something..."
      android:maxLength="30" />

  </android.support.design.widget.TextInputLayout>

EditText2.java

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    setupHideKeyboardOnFocusChange();
}

public void setupHideKeyboardOnFocusChange() {
    setupHideKeyboardOnFocusChange(getActivity().findViewById(android.R.id.content));
}

public void setupHideKeyboardOnFocusChange(View view) {
    // Set up touch listener for non-text box views to hide keyboard.
    if (!(view instanceof EditText) && !(view instanceof CheckableImageButton)) {
        view.setOnTouchListener(new View.OnTouchListener() {
            public boolean onTouch(View v, MotionEvent event) {
                hideKeyboard();
                return false;
            }
        });
    }

    //If a layout container, iterate over children and seed recursion.
    if (view instanceof ViewGroup) {
        for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
            View innerView = ((ViewGroup) view).getChildAt(i);
            setupHideKeyboardOnFocusChange(innerView);
        }
    }
}

EditText3.java

//region add LengthFilter
InputFilter[] filters = inputEditText.getFilters();
InputFilter[] inputFilters = new InputFilter[filters.length + 1];
InputFilter.LengthFilter lengthFilter = new InputFilter.LengthFilter(30);
for (int i = 0; i < filters.length; i++) {
    inputFilters[i] = filters[i];
}
inputFilters[inputFilters.length - 1] = lengthFilter;
inputEditText.setFilters(inputFilters);
//endregion
OR

android:maxLength="30"