监听Home键和返回键

淩亂°似流年 2022-05-31 07:53 309阅读 0赞

创建homereceiver

import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import android.content.IntentFilter;
    
    public class HomeKeyEventBroadCastReceiver extends BroadcastReceiver {
    
        static final String SYSTEM_REASON = "reason";
        static final String SYSTEM_HOME_KEY = "homekey";//home key
        static final String SYSTEM_RECENT_APPS = "recentapps";//long home key
    
        private HomeKeyCallBack homeKeyCallBack;
    
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
                String reason = intent.getStringExtra(SYSTEM_REASON);
                if (reason != null) {
                    if (reason.equals(SYSTEM_HOME_KEY)) {
                        // home key处理点
                        if (homeKeyCallBack != null) {
                            homeKeyCallBack.onHomeKey();
                        }
    
                    } else if (reason.equals(SYSTEM_RECENT_APPS)) {
                        // long home key处理点
                    }
                }
            }
        }
    
        public void setHomeKeyCallBack(HomeKeyCallBack homeKeyCallBack) {
            this.homeKeyCallBack = homeKeyCallBack;
        }
    
        public void registerReceiver(Context context){
            context.registerReceiver(this, new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
        }
    
        public void unRegisterReceiver(Context context) {
            context.unregisterReceiver(this);
        }
    
        public interface HomeKeyCallBack {
            public void onHomeKey();
        }
    }

在service中 实现HomeKeyCallBack

@Override
    public void onHomeKey() {
      //处理home按键

//发消息处理自己的操作
        //MessageObject msgObject = new MessageObject(SpeechConstant.UI_DIALOG_STATE.SEND_EXIT_DIALOG_ACTION, null, null);
        //MessageHandler.getInstance(SpeechService.this).sendMessage(msgObject);
    }