qt 6.5.1 original

examples/corelib/platform/androidnotifier/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(androidnotifier LANGUAGES CXX)
+
+if(NOT ANDROID)
+    message(FATAL_ERROR "Example only works on Android")
+endif()
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+find_package(Qt6 REQUIRED COMPONENTS Widgets)
+
+qt_standard_project_setup()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/corelib/platform/androidnotifier")
+
+qt_add_executable(androidnotifier
+    MANUAL_FINALIZATION
+    main.cpp
+    notificationclient.cpp
+    notificationclient.h
+)
+
+target_link_libraries(androidnotifier PRIVATE
+    Qt6::Widgets
+)
+
+set_property(TARGET androidnotifier APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
+             ${CMAKE_CURRENT_SOURCE_DIR}/android)
+
+qt_finalize_executable(androidnotifier)
+
+set(qml_resource_files
+    "images/happy.png"
+    "images/sad.png"
+)
+
+qt_add_resources(androidnotifier "main"
+    PREFIX
+        "/"
+    FILES
+        ${qml_resource_files}
+)
+
+install(TARGETS androidnotifier
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/corelib/platform/androidnotifier/android/AndroidManifest.xml

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+<?xml version="1.0"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.qtproject.example.androidnotifier"
+    android:installLocation="auto"
+    android:versionCode="1"
+    android:versionName="1.0">
+    <!-- The comment below will be replaced with dependencies permissions upon deployment.
+             Remove the comment if you do not require these default permissions. -->
+    <!-- %%INSERT_PERMISSIONS -->
+
+    <!-- The comment below will be replaced with dependencies permissions upon deployment.
+             Remove the comment if you do not require these default features. -->
+    <!-- %%INSERT_FEATURES -->
+
+    <supports-screens
+        android:anyDensity="true"
+        android:largeScreens="true"
+        android:normalScreens="true"
+        android:smallScreens="true" />
+    <application
+        android:name="org.qtproject.qt.android.bindings.QtApplication"
+        android:extractNativeLibs="true"
+        android:hardwareAccelerated="true"
+        android:label="Qt Notifier"
+        android:requestLegacyExternalStorage="true"
+        android:icon="@drawable/icon"
+        android:allowBackup="true"
+        android:fullBackupOnly="false">
+        <activity
+            android:name="org.qtproject.qt.android.bindings.QtActivity"
+            android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density"
+            android:label="Qt Notifier"
+            android:launchMode="singleTop"
+            android:screenOrientation="unspecified"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.lib_name"
+                android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
+
+            <meta-data
+                android:name="android.app.background_running"
+                android:value="false"/>
+
+            <meta-data
+                android:name="android.app.extract_android_style"
+                android:value="none" />
+        </activity>
+    </application>
+</manifest>

examples/corelib/platform/androidnotifier/android/src/org/qtproject/example/androidnotifier/NotificationClient.java

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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+package org.qtproject.example.androidnotifier;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.graphics.BitmapFactory;
+import android.app.NotificationChannel;
+
+public class NotificationClient
+{
+    public static void notify(Context context, String message) {
+        try {
+            NotificationManager m_notificationManager = (NotificationManager)
+                    context.getSystemService(Context.NOTIFICATION_SERVICE);
+
+            Notification.Builder m_builder;
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+                int importance = NotificationManager.IMPORTANCE_DEFAULT;
+                NotificationChannel notificationChannel;
+                notificationChannel = new NotificationChannel("Qt", "Qt Notifier", importance);
+                m_notificationManager.createNotificationChannel(notificationChannel);
+                m_builder = new Notification.Builder(context, notificationChannel.getId());
+            } else {
+                m_builder = new Notification.Builder(context);
+            }
+
+            Bitmap icon = BitmapFactory.decodeResource(context.getResources(), R.drawable.icon);
+            m_builder.setSmallIcon(R.drawable.icon)
+                    .setLargeIcon(icon)
+                    .setContentTitle("A message from Qt!")
+                    .setContentText(message)
+                    .setDefaults(Notification.DEFAULT_SOUND)
+                    .setColor(Color.GREEN)
+                    .setAutoCancel(true);
+
+            m_notificationManager.notify(0, m_builder.build());
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

examples/corelib/platform/androidnotifier/androidnotifier.pro

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+QT += core gui
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+SOURCES += \
+    main.cpp \
+    notificationclient.cpp
+
+HEADERS += \
+    notificationclient.h
+
+RESOURCES += \
+    main.qrc
+
+target.path = $$[QT_INSTALL_EXAMPLES]/corelib/platform/androidnotifier
+INSTALLS += target
+
+ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
+OTHER_FILES += \
+    android/src/org/qtproject/example/androidnotifier/NotificationClient.java \
+    android/AndroidManifest.xml

examples/corelib/platform/androidnotifier/doc/src/androidnotifier-example.qdoc

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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+    \title Qt Android Notifier
+    \example platform/androidnotifier
+    \brief Demonstrates calling Java code from Qt in an Android application.
+
+    \image androidnotifier.png
+
+    This example demonstrates how to add a custom Java class to an Android
+    application, and how to call it using the JNI convenience APIs in Qt.
+
+    Click on one of the smiley faces to send a notification in the status bar
+    of the Android screen.
+
+    \include examples-run.qdocinc
+
+    \section1 Calling Java Methods from C++ Code
+
+    We define a custom Java class called \c NotificationClient in the
+    NotificationClient.java file:
+
+    \quotefromfile platform/androidnotifier/android/src/org/qtproject/example/androidnotifier/NotificationClient.java
+    \skipto org.qtproject.example.androidnotifier
+    \printuntil /^\}/
+
+    In the NotificationClient C++ class header file, \c notificationclient.h, we
+    declare a simple C++ API to display notifications on an Android device. It
+    consists of a single string property, \c notification, and a slot,
+    \c updateAndroidNotification(), that calls the Java code:
+
+    \snippet platform/androidnotifier/notificationclient.h Qt Notification Class
+
+    We connect the \c notificationChanged() signal to the
+    \c updateAndroidNotification() slot to update the notification text when the
+    \c notification text changes:
+
+    \snippet platform/androidnotifier/notificationclient.cpp notification changed signal
+
+    The \c updateAndroidNotification() function calls the Java method responsible
+    for sending the notification from the Android platform APIs. First, we construct
+    a Java string \c jstring from the notification string, then pass the \c jstring
+    object as a parameter to the \c notify() method in Java:
+
+    \snippet platform/androidnotifier/notificationclient.cpp Send notification message to Java
+
+    The call to the Java meethod use \l QJniObject which relies on the Java Native
+    Interface (JNI) APIs to communicate with Java. Also, in the previous snippet,
+    we are passing the app's context object which the the static Java code can use
+    to tap into the app's specific properties and APIs.
+
+    To make sure our smiley buttons do what they are supposed to, we add the
+    the following code to change the notification text if either of them are
+    clicked:
+
+    \snippet platform/androidnotifier/main.cpp Connect button signals
+
+    \sa {Qt for Android}
+*/

examples/corelib/platform/androidnotifier/main.cpp

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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "notificationclient.h"
+
+#include <QApplication>
+#include <QWidget>
+#include <QPushButton>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QFont>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+
+    QWidget widget;
+    QPushButton happyButton;
+    happyButton.setIcon(QIcon(":/images/happy.png"));
+    happyButton.setIconSize(QSize(happyButton.width(), 120));
+
+    QPushButton sadButton;
+    sadButton.setIcon(QIcon(":/images/sad.png"));
+    sadButton.setIconSize(QSize(sadButton.width(), 120));
+
+    QVBoxLayout mainLayout;
+    QHBoxLayout labelLayout;
+    QLabel label = QLabel("Click a smiley to notify your mood");
+    QFont font = label.font();
+    font.setPointSize(20);
+    label.setFont(font);
+    labelLayout.addWidget(&label);
+    labelLayout.setAlignment(Qt::AlignHCenter);
+    mainLayout.addLayout(&labelLayout);
+
+    QHBoxLayout smileysLayout;
+    smileysLayout.addWidget(&sadButton);
+    smileysLayout.addWidget(&happyButton);
+    smileysLayout.setAlignment(Qt::AlignCenter);
+    mainLayout.addLayout(&smileysLayout);
+    widget.setLayout(&mainLayout);
+
+//! [Connect button signals]
+    QObject::connect(&happyButton, &QPushButton::clicked, []() {
+        NotificationClient().setNotification("The user is happy!");
+    });
+
+    QObject::connect(&sadButton, &QPushButton::clicked, []() {
+        NotificationClient().setNotification("The user is sad!");
+    });
+//! [Connect button signals]
+
+    widget.show();
+    return a.exec();
+}
+

examples/corelib/platform/androidnotifier/main.qrc

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+<RCC>
+    <qresource prefix="/">
+        <file>images/happy.png</file>
+        <file>images/sad.png</file>
+    </qresource>
+</RCC>

examples/corelib/platform/androidnotifier/notificationclient.cpp

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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "notificationclient.h"
+
+#include <QtCore/qjniobject.h>
+#include <QtCore/qcoreapplication.h>
+
+NotificationClient::NotificationClient(QObject *parent)
+    : QObject(parent)
+{
+    connect(this, &NotificationClient::notificationChanged,
+            this, &NotificationClient::updateAndroidNotification);
+}
+
+void NotificationClient::setNotification(const QString &notification)
+{
+    if (m_notification == notification)
+        return;
+
+//! [notification changed signal]
+    m_notification = notification;
+    emit notificationChanged();
+//! [notification changed signal]
+}
+
+QString NotificationClient::notification() const
+{
+    return m_notification;
+}
+
+//! [Send notification message to Java]
+void NotificationClient::updateAndroidNotification()
+{
+    QJniObject javaNotification = QJniObject::fromString(m_notification);
+    QJniObject::callStaticMethod<void>(
+                    "org/qtproject/example/androidnotifier/NotificationClient",
+                    "notify",
+                    "(Landroid/content/Context;Ljava/lang/String;)V",
+                    QNativeInterface::QAndroidApplication::context(),
+                    javaNotification.object<jstring>());
+}
+//! [Send notification message to Java]

examples/corelib/platform/androidnotifier/notificationclient.h

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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef NOTIFICATIONCLIENT_H
+#define NOTIFICATIONCLIENT_H
+
+#include <QObject>
+
+//! [Qt Notification Class]
+class NotificationClient : public QObject
+{
+    Q_OBJECT
+public:
+    explicit NotificationClient(QObject *parent = 0);
+
+    void setNotification(const QString &notification);
+    QString notification() const;
+
+signals:
+    void notificationChanged();
+
+private slots:
+    void updateAndroidNotification();
+
+private:
+    QString m_notification;
+};
+//! [Qt Notification Class]
+#endif // NOTIFICATIONCLIENT_H