SilentToggle.java

package com.android.systemui.statusbar.toggles;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.AudioManager;

import com.android.systemui.R;

public class SilentToggle extends Toggle {

    public SilentToggle(Context context) {
        super(context);

        setLabel(R.string.toggle_silent);

        IntentFilter filter = new IntentFilter();
        filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION);
        context.registerReceiver(new BroadcastReceiver() {

            @Override
            public void onReceive(Context context, Intent intent) {
                updateState();
            }
        }, filter);
        updateState();
    }

    @Override
    protected boolean updateInternalToggleState() {
        AudioManager am = (AudioManager) mContext
                .getSystemService(Context.AUDIO_SERVICE);
        int mode = am.getRingerMode();
        mToggle.setChecked(mode == AudioManager.RINGER_MODE_SILENT);
        if (mToggle.isChecked()) {
            setIcon(R.drawable.toggle_silence);
        } else {
            setIcon(R.drawable.toggle_silence_off);
        }
        return mToggle.isChecked();
    }

    @Override
    protected void onCheckChanged(boolean isChecked) {
        AudioManager am = (AudioManager) mContext
                .getSystemService(Context.AUDIO_SERVICE);
        am.setRingerMode(isChecked ? AudioManager.RINGER_MODE_SILENT
                : AudioManager.RINGER_MODE_NORMAL);
        updateState();
    }

    @Override
    protected boolean onLongPress() {
        Intent intent = new Intent(
                android.provider.Settings.ACTION_SOUND_SETTINGS);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        mContext.startActivity(intent);
        return true;
    }

}