Qt for Android 启动短暂的黑屏或白屏问题如何解决（）

智者不为愚者谋，勇者不为怯者死。这篇文章主要讲述Qt for Android 启动短暂的黑屏或白屏问题如何解决？相关的知识，希望能为你提供帮助。
解决方法一：使用透明主题
点击项目 -> 在构建设置里面找到 Build android APK 栏目，点击 create templates 创建一个 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" < !--添加上面一条即可，只是把黑屏设置成透明的而已，启动还是会慢--> < !--@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=https://www.songbingjia.com/android/" 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>

解决方法二：【Qt for Android 启动短暂的黑屏或白屏问题如何解决（）】使用图片替换主题

在res/values文件目录下新建一个 style.xml 文件，文件内容如下 < ?xml version=' 1.0' encoding=' utf-8' ?> < resources> < style name=" Theme.AppStartLoad" parent=" android:Theme" > < item name=" android:windowBackground" > @drawable/logo< /item> < !-- @drawable/logo 确保 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> 然后在 AndroidManifest.xml 中应用上面定义的两个主题，添加的位置如下 < applicationandroid:theme = " @style/Theme.AppStartLoadTranslucent" > < activityandroid: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=https://www.songbingjia.com/android/" true" /> --> < !-- Splash screen --> //这上面的是添加启动图片

解决方案三