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这期内容当中小编将会给大家带来有关怎么在Android中监听Home键，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
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Android是一种基于Linux内核的自由及开放源代码的操作系统，主要使用于移动设备，如智能手机和平板电脑，由美国Google公司和开放手机联盟领导及开发。
注册广播：
HomeListener.getInstance().start(this);
移除广播
HomeListener.getInstance().stop(this);
设置监听回调
HomeListener.getInstance().setHomeKeylistener(HomePressListener listener）；
添加监听回调
HomeListener.getInstance().addHomeKeyListener(HomePressListener listener）
移除监听回调
HomeListener.getInstance().removeHomeKeyListener(HomePressListener listener);
移除所有监听回调
HomeListener.getInstance().removeAllHomeKeyListener();
销毁
HomeListener.getInstance().destroy();
工具类代码：
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
public class HomeListener {
public static HomeKeyListener getInstance() {
HomeKeyListener listener = HomeKeyListener.sListener;
listener.init();
return listener;
}
static class HomeKeyListener {
private static final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";//home键旁边的最近程序列表键
private static final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";//按下home键
private static final String SYSTEM_DIALOG_REASON_ASSIST = "assist";//某些三星手机的程序列表键
private static AtomicBoolean isDestroy = new AtomicBoolean(true);
private static AtomicBoolean isRegister = new AtomicBoolean(false);
private static HomeKeyListener sListener = new HomeKeyListener();
private List mPressListeners = new ArrayList();
private HomeReceiver mReceiver;
private IntentFilter mHomeFileter;
private HomePressListener mHomePressListener;
public void init() {
if (isDestroy.get()) {
this.mPressListeners = new ArrayList();
this.mReceiver = new HomeReceiver();
this.mHomeFileter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
isDestroy.set(false);
}
}
public synchronized void start(Context context) {
if (!isRegister.get()) {
context.registerReceiver(mReceiver, mHomeFileter);
isRegister.set(true);
}
}
public synchronized void stop(Context context) {
if (isRegister.get()) {
context.unregisterReceiver(mReceiver);
isRegister.set(false);
}
}
public void setHomeKeylistener(HomePressListener listener) {
this.mHomePressListener = listener;
}
public void addHomeKeyListener(HomePressListener listener) {
mPressListeners.add(listener);
}
public void removeHomeKeyListener(HomePressListener listener) {
mPressListeners.add(listener);
}
public void removeAllHomeKeyListener() {
mPressListeners.clear();
}
public void destroy() {
this.mPressListeners.clear();
this.mPressListeners = null;
this.mReceiver = null;
this.mHomeFileter = null;
this.mHomePressListener = null;
isDestroy.set(true);
}
public interface HomePressListener {
void onHomePress();
void onHomeRecentAppsPress();
}
class HomeReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
receive(intent);
}
}
private void receive(Intent intent) {
String action = intent.getAction();
if (action != null && action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
String reason = intent.getStringExtra( "reason" );
dispatchPress(reason);
}
}
private void dispatchPress(String reason) {
switch (reason) {
case SYSTEM_DIALOG_REASON_HOME_KEY:
if (mHomePressListener != null) mHomePressListener.onHomePress();
for (HomePressListener listener : mPressListeners) listener.onHomePress();
break;
case SYSTEM_DIALOG_REASON_RECENT_APPS:
case SYSTEM_DIALOG_REASON_ASSIST:
if (mHomePressListener != null) mHomePressListener.onHomeRecentAppsPress();
for (HomePressListener listener : mPressListeners) listener.onHomeRecentAppsPress();
break;
}
}
}
} 上述就是小编为大家分享的怎么在Android中监听Home键了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。