MMInputUtils.java

public class MMInputUtils {

    private MMInputUtils() {
        throw new AssertionError("no instances");
    }

    @IntDef({CURSOR_POSITION_BEGINNING, CURSOR_POSITION_ENDING})
    @Retention(RetentionPolicy.SOURCE)
    public @interface CursorPosition{}

    public static final int CURSOR_POSITION_BEGINNING =  0;
    public static final int CURSOR_POSITION_ENDING = 1;

    public static void setCursorPosition(@Nullable EditText inputField, @CursorPosition int cursorPosition) {
        if(inputField == null) {
            return;
        }

        switch (cursorPosition) {
            case CURSOR_POSITION_BEGINNING: {
                inputField.setSelection(0);
                break;
            }

            case CURSOR_POSITION_ENDING: {
                inputField.setSelection(inputField.length());
            }
        }
    }


    @IntDef({MASK_VISIBILITY_SHADOWED, MASK_VISIBILITY_UNSHADOWED})
    @Retention(RetentionPolicy.SOURCE)
    public @interface InputMaskVisibility{}
    public static final int MASK_VISIBILITY_SHADOWED = 0;
    public static final int MASK_VISIBILITY_UNSHADOWED = 1;

    public static void setMaskVisibility(@Nullable EditText inputField, @InputMaskVisibility int maskVisibility) {
        if(inputField == null) {
            return;
        }

        switch(maskVisibility) {
            case MASK_VISIBILITY_SHADOWED: {
                inputField.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD);
                break;
            }

            case MASK_VISIBILITY_UNSHADOWED: {
                inputField.setInputType(InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
                break;
            }
        }
    }
}