Android下监听Home键

 

网上看到demo，亲测了以下机器和设备，均测试通过：

测试通过的手机：



1.华为荣耀3（Android 4.2.2）

2.小米2s（Android 4.1.1）

3.联想的手机 （Android2.3.5）

4.Google Nexus 5模拟器（Android 4.4.2）

 

核心代码：

 

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.util.Log;



public class HomeWatcher {



    static final String TAG = "wxl";

    private Context mContext;

    private IntentFilter mFilter;

    private OnHomePressedListener mListener;

    private InnerRecevier mRecevier;



    // 回调接口

    public interface OnHomePressedListener {

        public void onHomePressed();



        public void onHomeLongPressed();

    }



    public HomeWatcher(Context context) {

        mContext = context;

        mFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);

    }



    /**

     * 设置监听

     * 

     * @param listener

     */

    public void setOnHomePressedListener(OnHomePressedListener listener) {

        mListener = listener;

        mRecevier = new InnerRecevier();

    }



    /**

     * 开始监听，注册广播

     */

    public void startWatch() {

        if (mRecevier != null) {

            mContext.registerReceiver(mRecevier, mFilter);

        }

    }



    /**

     * 停止监听，注销广播

     */

    public void stopWatch() {

        if (mRecevier != null) {

            mContext.unregisterReceiver(mRecevier);

        }

    }



    /**

     * 广播接收者

     */

    class InnerRecevier extends BroadcastReceiver {

        final String SYSTEM_DIALOG_REASON_KEY = "reason";

        final String SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS = "globalactions";

        final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";

        final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";



        @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_DIALOG_REASON_KEY);

                if (reason != null) {

                    Log.e(TAG, "action:" + action + ",reason:" + reason);

                    if (mListener != null) {

                        if (reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {

                            // 短按home键

                            mListener.onHomePressed();

                        } else if (reason

                                .equals(SYSTEM_DIALOG_REASON_RECENT_APPS)) {

                            // 长按home键

                            mListener.onHomeLongPressed();

                        }

                    }

                }

            }

        }

    }

}

 

 

调用方式：

 

public class MainActivity extends Activity {

    private static final String TAG = "wxl";

    private HomeWatcher mHomeWatcher;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



        mHomeWatcher = new HomeWatcher(this);

        mHomeWatcher.setOnHomePressedListener(new OnHomePressedListener() {

            @Override

            public void onHomePressed() {

                Toast.makeText(MainActivity.this, "onHomePressed",

                        Toast.LENGTH_LONG).show();

            }



            @Override

            public void onHomeLongPressed() {

                Toast.makeText(MainActivity.this, "onHomeLongPressed",

                        Toast.LENGTH_LONG).show();

            }

        });

        mHomeWatcher.startWatch();

    }



    /**

     * 重新进入或打开屏幕灯

     */

    protected void onRestart() {

        Log.d(TAG, "onRestart");

        mHomeWatcher.startWatch();

        super.onRestart();

    }



    /**

     * 按Home键或关闭屏幕灯

     */

    protected void onPause() {

        super.onPause();

        Log.d(TAG, "onPause");

        mHomeWatcher.stopWatch();// 在onPause中停止监听，不然会报错的。

    }



}

 

demo下载地址：http://files.cnblogs.com/hsx514/ApkDemo.zip