实例项目结构图

pro文件

QT       += core gui androidextras

...

DISTFILES += \

    android/AndroidManifest.xml \

    android/build.gradle \

    android/gradle/wrapper/gradle-wrapper.jar \

    android/gradle/wrapper/gradle-wrapper.properties \

    android/gradlew \

    android/gradlew.bat \

    android/res/values/libs.xml \

    android/res/values/style.xml \

    android/res/drawable/logo.png \

    android/src/org/qtproject/example/Hello.java

..

main.cpp

#include "mainwindow.h"

#include <QApplication>

#include<QTimer>

#include <QtAndroidExtras/QtAndroid>

int main(int argc, char *argv[])

{

    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

    QTimer::singleShot(3000,[=](){

        QtAndroid::hideSplashScreen(500);

    });

    QApplication a(argc, argv);

    MainWindow w;

    w.show();

    return a.exec();

}

style.xml

<?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>

AndroidManifest.xml

...

 <application android:theme="@style/Theme.AppStartLoadTranslucent" android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:label="-- %%INSERT_APP_NAME%% --">

        <activity android:theme="@style/Theme.AppStartLoad" android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density" android:name="org.qtproject.qt5.android.bindings.QtActivity" android:label="-- %%INSERT_APP_NAME%% --" android:screenOrientation="unspecified" android:launchMode="singleTop">

            <intent-filter>

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

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

            </intent-filter>

...