android Home事件汇总

方法一：android 4.0以后无法通过更改页面的类型来监听home键了。如果不改源码的情况下，下面的方式可以很好的监听到home键（前提是手机打系统日志，有些手机日志被关闭了（如华为荣耀）就无法监听了）。

01	protected void onResume()

02

{

03	super.onResume();

04	isTesting=true;

05	new CatchLogThread().start();

06

}

07	class CatchLogThread extends Thread {

08

@Override

09	public void run() {

10	Process mLogcatProc = null;

11	BufferedReader reader = null;

12	String line;

13	while (isTesting) {

14

try {

15	// 获取logcat日志信息

16	mLogcatProc = Runtime.getRuntime().exec(new String[] { "logcat","ActivityManager:I *:S" });

17	reader = new BufferedReader(newInputStreamReader(mLogcatProc.getInputStream()),2*1024);

18	while ((line = reader.readLine()) != null) {

19	if (line.indexOf("android.intent.category.HOME") > 0) {

20	isTesting = false;

21	System.out.println("DDDDDDDDDDDDDDDDDDDDDDDDD");

22	handler.sendMessage(handler.obtainMessage());

23	Runtime.getRuntime().exec("logcat -c");//删除日志

24

break;

25

}

26

}

27	} catch (Exception e) {

28	e.printStackTrace();

29

}

30

}

31

}

32

};

33	Handler handler = new Handler() {

34	public void handleMessage(android.os.Message msg) {

35

36	startActivity(new Intent(MainActivity.this,MainActivity.class));

37	Toast.makeText(MainActivity.this, "I Have Home is pressed!!!!!",Toast.LENGTH_LONG).show();

38	System.out.println("Home is Pressed+++++++++++++++++");

39

};

40

};

最后记得在AndroidManifest.xml中加读取日志权限：
<uses-permission android:name="android.permission.READ_LOGS"></uses-permission>

方法二：广播监听

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print?

01	private final BroadcastReceiver homePressReceiver = new BroadcastReceiver() {

02	final String SYSTEM_DIALOG_REASON_KEY = "reason";

03	final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";

04

05

@Override

06	public void onReceive(Context context, Intent intent) {

07	String action = intent.getAction();

08	if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {

09	String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);

10	if (reason != null

11	&& reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {

12	// 自己随意控制程序，写自己想要的结果

13	Log.i(TAG,"home_press");

14

15

}

16

}

17

}

18

};

 注册广播：

1	IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);

2	registerReceiver(homePressReceiver, homeFilter);

注销广播：

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1	if (homePressReceiver != null) {

2

try {

3	unregisterReceiver(homePressReceiver);

4	} catch (Exception e) {

5	Log.e(TAG,

6	"unregisterReceiver homePressReceiver failure :"

7	+ e.getCause());

8

}

9

}

 

方法三：在android2.2到android3.2使用：一下代码就可以截取HOME事件：

1.  public void onAttachedToWindow()  

2.  {    

3.        this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);       

4.         super.onAttachedToWindow();    

5.  }  

 

在AndroidManifest.xml里面加上权限<uses-permissionandroid:name="android.permission.SYSTEM_ALERT_WINDOW"/>

好了，这样子就可以截取HOME事件了。

 

但是在android4.0上面，使用如下代码，就会报错：

错误信息如下：

 java.lang.IllegalArgumentException: Window type can not be changedafter the window is added.

方法四：监听HOME事件

想不到啊，想不到，android4.0上面居然还有监听HOME事件的。其实也不是仅仅监听HOME事件的，他监听的是，activity离开的事件：

所以只需要重写activity下面的：就可以监听咯

@Override
         protected void onUserLeaveHint() {
                 super.onUserLeaveHint();
                 System.out.println("onUserLeaveHint");

}

团队的项目解决就用了一个比较213的方法，就是当判断用户是点击HOME的离开事件之后，添加这写语句：

Intent intent = new Intent(this,还是这个ACTIVITY的类名.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
this.startActivity(intent);

  /**
     * 判断应用是否有活跃的activity
     */
    public boolean isActive()
    {
        ActivityManager mActivityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
        List<RunningTaskInfo> rti = mActivityManager.getRunningTasks(1);
        return rti.get(0).topActivity.getPackageName().contains(getPackageName());
    }

--------------------------------------------------------------------------

 

public class HomeWatcherReceiver extends BroadcastReceiver {
    private static final String LOG_TAG = "HomeReceiver";
    private static final String SYSTEM_DIALOG_REASON_KEY = "reason";
    private static final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
    private static final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
    private static final String SYSTEM_DIALOG_REASON_LOCK = "lock";
    private static final String SYSTEM_DIALOG_REASON_ASSIST = "assist";

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        Log.i(LOG_TAG, "onReceive: action: " + action);
        if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
            // android.intent.action.CLOSE_SYSTEM_DIALOGS
            String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
            Log.i(LOG_TAG, "reason: " + reason);

            if (SYSTEM_DIALOG_REASON_HOME_KEY.equals(reason)) {
                // 短按Home键
                Log.i(LOG_TAG, "homekey");

            }
            else if (SYSTEM_DIALOG_REASON_RECENT_APPS.equals(reason)) {
                // 长按Home键 或者 activity切换键
                Log.i(LOG_TAG, "long press home key or activity switch");

            }
            else if (SYSTEM_DIALOG_REASON_LOCK.equals(reason)) {
                // 锁屏
                Log.i(LOG_TAG, "lock");
            }
            else if (SYSTEM_DIALOG_REASON_ASSIST.equals(reason)) {
                // samsung 长按Home键
                Log.i(LOG_TAG, "assist");
            }

        }
    }

}