Example usage for android.widget SeekBar onKeyDown

Introduction

In this page you can find the example usage for android.widget SeekBar onKeyDown.

Prototype

@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) 

Source Link

Usage

From source file:com.android.settings.SeekBarPreference.java

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
    if (event.getAction() != KeyEvent.ACTION_DOWN) {
        return false;
    }// www  .ja  v  a 2  s. c o  m

    SeekBar seekBar = (SeekBar) v.findViewById(com.android.internal.R.id.seekbar);
    if (seekBar == null) {
        return false;
    }
    return seekBar.onKeyDown(keyCode, event);
}

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From source file:net.xpece.android.support.preference.SeekBarPreference.java

/**
 * Listener reacting to the user pressing DPAD left/right keys if {@code
 * adjustable} attribute is set to true; it transfers the key presses to the SeekBar
 * to be handled accordingly.//from  w ww  .j av  a2  s .  c  o  m
 */
private View.OnKeyListener buildSeekBarKeyListener(final SeekBar seekBar) {
    return new View.OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (event.getAction() != KeyEvent.ACTION_DOWN) {
                return false;
            }

            if (!mAdjustable
                    && (keyCode == KeyEvent.KEYCODE_DPAD_LEFT || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT)) {
                // Right or left keys are pressed when in non-adjustable mode; Skip the keys.
                return false;
            }

            // We don't want to propagate the click keys down to the seekbar view since it will
            // create the ripple effect for the thumb.
            if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
                return false;
            }

            if (seekBar == null) {
                Log.e(TAG, "SeekBar view is null and hence cannot be adjusted.");
                return false;
            }
            return seekBar.onKeyDown(keyCode, event);
        }
    };
}

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