java - 打开通知时如何更新 Activity

Question

我正在处理通知，但遇到了问题。当我点击通知时我有一个 Activity 已经打开我不想再次打开它只是更新当前 Activity 。

if (!NotificationUtils.isAppIsInBackground(getApplicationContext())) {
 Intent pushNotification = null;
                if (NotificationType != 0 && NotificationType != 2 && NotificationType != 5 && NotificationType != 26) {
                    pushNotification = new Intent(getApplication(), SplashScreen.class);
                    pushNotification.putExtra("NotificationType", NotificationType);
                    pushNotification.putExtra("ReferenceID", ReferenceID);
                    pushNotification.putExtra("NotificationID", ReferenceID);
                    pushNotification.putExtra("isread", ReferenceID);
                    showNotificationMessage(getApplicationContext(), title, message, time, pushNotification);
                } else if (NotificationType == 0 || NotificationType == 2 || NotificationType == 5 || NotificationType == 26) {
                    showNotificationMessageWithNoAction(getApplicationContext(), title, message, title, null);
                }
}

谁能告诉我点击通知时如何更新 Activity ？

Answer 1

你只需要声明launchMode到singleTask来确保多个相同的屏幕不会打开。

Activity 有四种启动模式。他们是:
1.标准
2.单顶
3.单任务
4. 单实例

请引用此链接 Click here

<activity android:name="YOUR_SPLASH_ACTIVITY"
            android:launchMode="singleTask"

            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

而在 Java 代码中，您只需覆盖 onNewIntent 方法，以刷新 activity，

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);

    /**
     * HERE YOU JUST REFRESH , YOUR ACTIVITY 
     */

}