Qt 5.3.1 android中的全屏模式问题

我正在用qml（qt5.3.1，macosx10.8.5）开发一个android应用程序（API 19）。全屏模式工作，但有一个小问题。导航栏已隐藏，但应用程序未使用此空间（）

main.cpp

...
QApplication app(argc, argv);
QQuickView viewer1(QUrl(QStringLiteral("qrc:///main.qml")));
viewer1.setResizeMode(QQuickView::SizeRootObjectToView); // no effect
viewer1.showFullScreen();
return app.exec();
...

main.qml

import QtQuick 2.2

Rectangle {
    color: "red"
    width: 100
    height: 100
}

我尝试将android:theme=“@android:style/theme.NoTitleBar.Fullscreen”添加到AndroidManifest.xml，但没有解决方案

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使用模拟器和设备进行测试。有什么想法吗？

这个问题在即将发布的5.3.2版中得到了解决。

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您还应设置系统UI可见性标志：

在Android代码中：

View decorView = getWindow().getDecorView();
// Hide both the navigation bar and the status bar.
// SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as
// a general rule, you should design your app to hide the status bar whenever you
// hide the navigation bar.
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
          | View.SYSTEM_UI_FLAG_FULLSCREEN
          | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
          | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
          | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
          | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
decorView.setSystemUiVisibility(uiOptions);

QtAndroid::runOnAndroidThread([=]()
{
    QAndroidJniObject window = QtAndroid::androidActivity().callObjectMethod("getWindow", "()Landroid/view/Window;");
    QAndroidJniObject decorView = window.callObjectMethod("getDecorView", "()Landroid/view/View;");
    int flags = 0x00000002 | 0x00000400 | 0x00000100 | 0x00000200 | 0x00000004 | 0x00001000;
        decorView.callMethod<void>("setSystemUiVisibility", "(I)V", flags);
});

< Q> C++代码中的强> < <强>

View decorView = getWindow().getDecorView();
// Hide both the navigation bar and the status bar.
// SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as
// a general rule, you should design your app to hide the status bar whenever you
// hide the navigation bar.
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
          | View.SYSTEM_UI_FLAG_FULLSCREEN
          | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
          | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
          | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
          | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
decorView.setSystemUiVisibility(uiOptions);

QtAndroid::runOnAndroidThread([=]()
{
    QAndroidJniObject window = QtAndroid::androidActivity().callObjectMethod("getWindow", "()Landroid/view/Window;");
    QAndroidJniObject decorView = window.callObjectMethod("getDecorView", "()Landroid/view/View;");
    int flags = 0x00000002 | 0x00000400 | 0x00000100 | 0x00000200 | 0x00000004 | 0x00001000;
        decorView.callMethod<void>("setSystemUiVisibility", "(I)V", flags);
});

QtAndroid:：runOnAndroidThread（[=]（）
{
QAndroidJniObject window=QtAndroid:：androidActivity（）.callObjectMethod（“getWindow”，“Landroid/view/window；”）；
QAndroidJniObject decorView=window.callObjectMethod（“getDecorView”，“（）Landroid/view/view；”）；
int flags=0x00000002 | 0x00000400 | 0x00000100 | 0x00000200 | 0x00000004 | 0x000001000；
decorView.callMethod（“设置系统兼容性”，“I）V”，标志）；
});

您可以从中获取标志代码

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Dovranito回答的附加信息 如果androidmanifest.xml中有“android:theme=”definition，则必须删除

例如，您的androidmanifest.xml是

<application android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:label="superslot" android:extractNativeLibs="true">

最后，您不会忘记添加main.cpp、

#include

、.pro文件add

QT+=androidxtras

就这些

setFullScreenMode(true);