如何在android中捕获长按音量下调键？

// 1. 创建BroadcastReceiver类
public class VolumeDownReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // 3. 处理接收到的音量按键事件
        if (intent.getAction().equals("android.media.VOLUME_CHANGED_ACTION")) {
            int keyCode = intent.getIntExtra("android.media.EXTRA_KEY_EVENT_KEYCODE", -1);
            int keyAction = intent.getIntExtra("android.media.EXTRA_KEY_EVENT_ACTION", -1);
            
            // 4. 判断是否是音量下调键的长按事件
            if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN && keyAction == KeyEvent.ACTION_DOWN) {
                // 5. 执行相应的操作
                Toast.makeText(context, "长按音量下调键", Toast.LENGTH_SHORT).show();
            }
        }
    }
}

// 2. 在AndroidManifest.xml中注册BroadcastReceiver类
<receiver android:name=".VolumeDownReceiver">
    <intent-filter>
        <action android:name="android.media.VOLUME_CHANGED_ACTION" />
    </intent-filter>
</receiver>