Qt for Android 啟動短暫的黑屏或白屏問題如何解決？

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解決方案一：

使用透明主題
點擊項目 -> 在 構建設定 裡面找到 Build Android APK 欄目，點擊 create templates 建立一個 AndroidManifest.xml

<?xml version="1.0"?><manifest package="org.qtproject.example" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="1.0" android:versionCode="1" android:installLocation="auto">    <application android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:label="-- %%INSERT_APP_NAME%% --">        <activity            android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation"            android:name="org.qtproject.qt5.android.bindings.QtActivity"            android:label="-- %%INSERT_APP_NAME%% --"            android:screenOrientation="unspecified"            android:launchMode="singleTop"            android:theme="@android:style/Theme.Translucent.NoTitleBar"                        <!--  添加上面一條即可，只是把黑屏設定成透明的而已，啟動還是會慢  -->                        <!--  @android:style/Theme.Translucent   -->            <!-- @android:style/Theme.Translucent.NoTitleBar   -->            <!-- @android:style/Theme.Translucent.NoTitleBar.Fullscreen   -->            >            <intent-filter>                <action android:name="android.intent.action.MAIN"/>                <category android:name="android.intent.category.LAUNCHER"/>            </intent-filter>            <!-- Application arguments -->            <!-- meta-data android:name="android.app.arguments" android:value="arg1 arg2 arg3"/ -->            <!-- Application arguments -->            <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>            <meta-data android:name="android.app.qt_sources_resource_id" android:resource="@array/qt_sources"/>            <meta-data android:name="android.app.repository" android:value="default"/>            <meta-data android:name="android.app.qt_libs_resource_id" android:resource="@array/qt_libs"/>            <meta-data android:name="android.app.bundled_libs_resource_id" android:resource="@array/bundled_libs"/>            <!-- Deploy Qt libs as part of package -->            <meta-data android:name="android.app.bundle_local_qt_libs" android:value="-- %%BUNDLE_LOCAL_QT_LIBS%% --"/>            <meta-data android:name="android.app.bundled_in_lib_resource_id" android:resource="@array/bundled_in_lib"/>            <meta-data android:name="android.app.bundled_in_assets_resource_id" android:resource="@array/bundled_in_assets"/>            <!-- Run with local libs -->            <meta-data android:name="android.app.use_local_qt_libs" android:value="-- %%USE_LOCAL_QT_LIBS%% --"/>            <meta-data android:name="android.app.libs_prefix" android:value="/data/local/tmp/qt/"/>            <meta-data android:name="android.app.load_local_libs" android:value="-- %%INSERT_LOCAL_LIBS%% --"/>            <meta-data android:name="android.app.load_local_jars" android:value="-- %%INSERT_LOCAL_JARS%% --"/>            <meta-data android:name="android.app.static_init_classes" android:value="-- %%INSERT_INIT_CLASSES%% --"/>            <!--  Messages maps -->            <meta-data android:value="@string/ministro_not_found_msg" android:name="android.app.ministro_not_found_msg"/>            <meta-data android:value="@string/ministro_needed_msg" android:name="android.app.ministro_needed_msg"/>            <meta-data android:value="@string/fatal_error_msg" android:name="android.app.fatal_error_msg"/>            <!--  Messages maps -->            <!-- Splash screen -->            <!-- meta-data android:name="android.app.splash_screen_drawable" android:resource="@drawable/logo"/ -->            <!-- meta-data android:name="android.app.splash_screen_sticky" android:value="true"/ -->            <!-- Splash screen -->            <!-- Background running -->            <!-- Warning: changing this value to true may cause unexpected crashes if the                          application still try to draw after                          "applicationStateChanged(Qt::ApplicationSuspended)"                          signal is sent! -->            <meta-data android:name="android.app.background_running" android:value="false"/>            <!-- Background running -->            <!-- auto screen scale factor -->            <meta-data android:name="android.app.auto_screen_scale_factor" android:value="false"/>            <!-- auto screen scale factor -->            <!-- extract android style -->            <!-- available android:values :                * full - useful QWidget & Quick Controls 1 apps                * minimal - useful for Quick Controls 2 apps, it is much faster than "full"                * none - useful for apps that don't use any of the above Qt modules                -->            <meta-data android:name="android.app.extract_android_style" android:value="full"/>            <!-- extract android style -->    </activity>    <!-- For adding service(s) please check: https://wiki.qt.io/AndroidServices -->    </application>    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="16"/>    <supports-screens android:largeScreens="true" android:normalScreens="true" android:anyDensity="true" android:smallScreens="true"/>    <!-- The following comment will be replaced upon deployment with default permissions based on the dependencies of the application.         Remove the comment if you do not require these default permissions. -->    <!-- %%INSERT_PERMISSIONS -->    <!-- The following comment will be replaced upon deployment with default features based on the dependencies of the application.         Remove the comment if you do not require these default features. -->    <!-- %%INSERT_FEATURES --></manifest>

解決方案二：

使用圖片替換主題

在res/values檔案目錄下建立一個 style.xml 檔案，檔案內容如下<?xml version='1.0' encoding='utf-8'?><resources><style name="Theme.AppStartLoad" parent="android:Theme">    <item name="android:windowBackground">@drawable/logo</item>        <!-- @drawable/logo 確保 android\res\drawable-hdpi\logo.png 存在 -->    <item name="android:windowNoTitle">true</item></style><style name="Theme.AppStartLoadTranslucent" parent="android:Theme">    <item name="android:windowIsTranslucent">true</item>    <item name="android:windowNoTitle">true</item></style></resources>然後在 AndroidManifest.xml 中應用上面定義的兩個主題，添加的位置如下<application   android:theme = "@style/Theme.AppStartLoadTranslucent"><activity  android:theme="@style/Theme.AppStartLoad">            <!-- Splash screen -->            <!-- <meta-data android:name="android.app.splash_screen_drawable" android:resource="@drawable/logo"/> -->            <!-- <meta-data android:name="android.app.splash_screen_sticky" android:value="true"/> -->            <!-- Splash screen -->                        //這上面的是添加啟動圖片

解決方案三

https://falsinsoft.blogspot.com/2017/07/qml-show-android-native-splash-screen.html

Qt for Android 啟動短暫的黑屏或白屏問題如何解決？