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技術社區[雲棲]
android 4.0以後對HOME鍵的捕捉
package com.ljj.listeninghome;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
/**
* 所有Activity繼承該類，該類監測到home鍵的點擊時的事件
*
* @author lijingjin
*
*/
public class BaseActivity extends Activity {
// 監聽HOME鍵
HomeKeyEventBroadCastReceiver receiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 監聽home鍵廣播
receiver = new HomeKeyEventBroadCastReceiver();
registerReceiver(receiver, new IntentFilter(
Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
}
@Override
protected void onDestroy() {
unregisterReceiver(receiver);
super.onDestroy();
}
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
@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處理點
Log.e("homekey", "home鍵被點擊");
Toast.makeText(BaseActivity.this, "Home鍵被點擊", Toast.LENGTH_SHORT).show();
} else if (reason.equals(SYSTEM_RECENT_APPS)) {
// long homekey處理點
Log.e("homekey", "長按home鍵");
Toast.makeText(BaseActivity.this, "Home鍵長按", Toast.LENGTH_SHORT).show();
}
}
}
}
}
}
package com.ljj.listeninghome;
import android.os.Bundle;
/**
* 該類繼承BaseActivity,在BaseActivity中監控HOME鍵
* @author lijingjin
*
*/
public class MainActivity extends BaseActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
最後更新：2017-04-03 12:53:56