android - 当用户点击来自锁屏的通知时启动 Activity

Question

我希望能够在设备锁定时点击通知并在不解锁设备的情况下启动 Activity 。

我在 onCreate() 方法中为 Activity 添加了一些标志，允许在设备锁定时显示 Activity :

Window window = this.getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
window.addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

这是创建通知的代码:

Intent intent = new Intent(this, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(
        this,
        0,
        intent,
        PendingIntent.FLAG_UPDATE_CURRENT);

Notification notification = new Notification.Builder(this)
        .setContentIntent(pendingIntent)
        .setContentTitle("Title")
        .setSmallIcon(android.R.drawable.ic_menu_more)
        .build();

NotificationManager notificationManager =
        (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

notificationManager.notify(1, notification);

我还在 list 中添加了 showOnLockScreen="true":

<activity
    android:name=".MainActivity"
    android:label="@string/app_name"
    android:showOnLockScreen="true"
    android:theme="@style/AppTheme.NoActionBar">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

有效的东西:

• Activity 在设备锁定时显示(例如，如果我将 Activity 留在前台并锁定手机， Activity 将保持在前台而不需要解锁手机)
• 如果我在手机锁定时点击通知，它会要求我解锁，然后显示 Activity

我希望能够在不解锁设备的情况下执行相同的操作。
我错过了什么？

Answer 1

试试这个!!!

private NotificationCompat.Builder mBuilder;

Intent notifyIntent = new Intent(getApplicationContext(), MainActivity.class);
    notifyIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
    PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, notifyIntent, 0);
    mBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(getNotificationIcon())
            .setContent(remoteViews)
            .setContentIntent(pendingIntent)
            .setOnlyAlertOnce(true)
            .setOngoing(true);

这是在设备 5.0 及更低版本上获取通知图标的方法

private int getNotificationIcon() {
    boolean useWhiteIcon = (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP);
    return useWhiteIcon ? R.drawable.notification_icon : R.mipmap.ic_launcher;
}

删除onCreate下面的代码

Window window = this.getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
window.addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);