我认为已接受的答案（Duane Homick）有未解决的案例：
您有不同的附加功能（因此应用程序重复）：
- 当您从电子市场或主屏幕图标（由电子市场自动放置）启动应用程序时
- 当您通过启动器启动应用程序或手动创建的主屏幕图标时
这是一个解决方案（通知的SDK_INT> = 11），我相信可以处理这些情况和statusbar通知。
清单：
<activity
android:name="com.acme.activity.LauncherActivity"
android:noHistory="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<service android:name="com.acme.service.LauncherIntentService" />
启动器活动：
public static Integer lastLaunchTag = null;
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mInflater = LayoutInflater.from(this);
View mainView = null;
mainView = mInflater.inflate(R.layout.act_launcher, null); // empty layout
setContentView(mainView);
if (getIntent() == null || getIntent().getExtras() == null || !getIntent().getExtras().containsKey(Consts.EXTRA_ACTIVITY_LAUNCH_FIX)) {
Intent serviceIntent = new Intent(this, LauncherIntentService.class);
if (getIntent() != null && getIntent().getExtras() != null) {
serviceIntent.putExtras(getIntent().getExtras());
}
lastLaunchTag = (int) (Math.random()*100000);
serviceIntent.putExtra(Consts.EXTRA_ACTIVITY_LAUNCH_TAG, Integer.valueOf(lastLaunchTag));
startService(serviceIntent);
finish();
return;
}
Intent intent = new Intent(this, SigninActivity.class);
if (getIntent() != null && getIntent().getExtras() != null) {
intent.putExtras(getIntent().getExtras());
}
startActivity(intent);
}
服务内容：
@Override
protected void onHandleIntent(final Intent intent) {
Bundle extras = intent.getExtras();
Integer lastLaunchTag = extras.getInt(Consts.EXTRA_ACTIVITY_LAUNCH_TAG);
try {
Long timeStart = new Date().getTime();
while (new Date().getTime() - timeStart < 100) {
Thread.currentThread().sleep(25);
if (!lastLaunchTag.equals(LauncherActivity.lastLaunchTag)) {
break;
}
}
Thread.currentThread().sleep(25);
launch(intent);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private void launch(Intent intent) {
Intent launchIintent = new Intent(LauncherIntentService.this, LauncherActivity.class);
launchIintent.addCategory(Intent.CATEGORY_LAUNCHER);
launchIintent.setAction(Intent.ACTION_MAIN);
launchIintent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
launchIintent.addFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
if (intent != null && intent.getExtras() != null) {
launchIintent.putExtras(intent.getExtras());
}
launchIintent.putExtra(Consts.EXTRA_ACTIVITY_LAUNCH_FIX, true);
startActivity(launchIintent);
}
通知事项：
ComponentName actCN = new ComponentName(context.getPackageName(), LauncherActivity.class.getName());
Intent contentIntent = new Intent(context, LauncherActivity.class);
contentIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (Build.VERSION.SDK_INT >= 11) {
contentIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); // if you need to recreate activity stack
}
contentIntent.addCategory(Intent.CATEGORY_LAUNCHER);
contentIntent.setAction(Intent.ACTION_MAIN);
contentIntent.putExtra(Consts.EXTRA_CUSTOM_DATA, true);