android - 启动器应用程序和主页键不一致

Question

我一直在构建一个包含许多 Activity 的启动器应用程序。当按下主页键并且他们将我的应用程序设置为默认启动器时，我希望主页按钮始终将用户带回 mainActivity。这在 90% 的时间都有效，但过了一段时间后，home 键最终停止工作。它记录了用户的按下，但不再将它们返回到主 Activity 。造成这种情况的原因让我回避了。我们已经尝试了几个月来以某种一致性重新创建错误，但无济于事。我们无法弄清楚是什么原因导致它停止工作。下面是我的 list 。我想知道我是否缺少某种旗帜或其他东西。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.sapientnitro.lcinstore2"
    android:configChanges="keyboard|uiMode"
    android:versionCode="4"
    android:versionName="4.0" >

<uses-sdk android:minSdkVersion="15" />

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
<uses-permission android:name="android.permission.VIBRATE" />

<uses-feature android:name="android.hardware.camera" />

<application
    android:icon="@drawable/icon"
    android:label="@string/app_name" >
    <activity
        android:name=".activities.LCInStore2Activity"
        android:alwaysRetainTaskState="true"
        android:configChanges="orientation|keyboardHidden"
        android:label="@string/app_name"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.HOME" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.MainActivity"
        android:configChanges="keyboard|uiMode"
        android:label="Main"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.MAINACTIVITY" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.Authenticate"
        android:label="Authenticate"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.AUTHENTICATE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.Settings"
        android:label="Settings"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.SETTINGS" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.CustomerHome"
        android:label="CustomerHome"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.CUSTOMERHOME" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.CustomWebView"
        android:label="CustomWebView"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.CUSTOMWEBVIEW" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.CustomCamera"
        android:label="CustomCamera"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.CUSTOMCAMERA" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.FavoritesCustomer"
        android:label="FavoritesCustomer"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.FAVORITESCUSTOMER" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.FavoritesAssociate"
        android:label="FavoritesAssociate"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.FAVORITESASSOCIATE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.Browser"
        android:hardwareAccelerated="true"
        android:label="Browser"
        android:screenOrientation="landscape" >

        <!-- android:theme="@android:style/Theme.NoTitleBar.Fullscreen"> -->
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.BROWSER" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.VideoViewer"
        android:label="Video Viewer"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.VIDEOVIEWER" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.GalleryOneUp"
        android:label="GalleryOneUp"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.GALLERYONEUP" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.GalleryFourUp"
        android:label="GalleryFourUp"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.GALLERYFOURUP" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.GeneralRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="GeneralRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.GeneralRX" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.SunglassRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="SunglassRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.SunglassRX" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.ComputerRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="ComputerRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.ComputerRX" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.NightGlassesRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="NightGlassesRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.NightGlassesRX" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.ActiveRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="ActiveRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.ActiveRX" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.SafetyRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="SafetyRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.SafetyRx" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.ContactRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="ContactRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.ContactRx" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.SettingsRx"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:label="SettingsRx"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.SettingsRX" />

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

    <receiver android:name=".SettingsReceiver" >
    </receiver>

    <activity
        android:name=".activities.CEETraining"
        android:label="@string/title_activity_ceetraining"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.CeeTraining" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.BrandTraining"
        android:label="@string/title_activity_brand_training"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.BrandTraining" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.LensTraining"
        android:label="@string/title_activity_lens_training"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.LensTraining" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.MakeAbility"
        android:label="@string/title_activity_makeability"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.Makeability" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name=".activities.MakeabilityResults"
        android:label="@string/title_activity_makeability_results"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter>
            <action android:name="com.sapientnitro.lcinstore2.activities.Makeabilityresults" />

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

</manifest>

Answer 1

我相信您遇到的问题可以通过将 Home 替换的主要 Activity 作为一个任务来解决。

要做到这一点，您需要将以下行作为主要 Activity 的一部分添加到您的 list 中:launchMode="singleTask" 关于它的作用的描述可以在here 中找到。 .

现在，只要您的应用收到主页按键事件并且应用未运行，它就会使用 onCreate 启动一个新实例。如果应用程序已经在前台运行或处于挂起状态，onNewIntent 将在您的主要 Activity 中调用，并将其带到前台。