QtAndroidTools/QtAndroidTools/QAndroidSignalStrength.cpp

124 lines
4.1 KiB
C++

/*
* MIT License
*
* Copyright (c) 2018 Fabio Falsini <falsinsoft@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <QGuiApplication>
#include "QAndroidSignalStrength.h"
QAndroidSignalStrength *QAndroidSignalStrength::m_pInstance = nullptr;
QAndroidSignalStrength::QAndroidSignalStrength() : m_JavaSignalStrength("com/falsinsoft/qtandroidtools/AndroidSignalStrength",
"(Landroid/app/Activity;)V",
QtAndroid::androidActivity().object<jobject>())
{
m_pInstance = this;
if(m_JavaSignalStrength.isValid())
{
const JNINativeMethod JniMethod[] = {
{"signalStrengthChanged", "()V", reinterpret_cast<void *>(&QAndroidSignalStrength::SignalStrengthChanged)},
};
QAndroidJniEnvironment JniEnv;
jclass ObjectClass;
ObjectClass = JniEnv->GetObjectClass(m_JavaSignalStrength.object<jobject>());
JniEnv->RegisterNatives(ObjectClass, JniMethod, sizeof(JniMethod)/sizeof(JNINativeMethod));
JniEnv->DeleteLocalRef(ObjectClass);
}
connect(qGuiApp, &QGuiApplication::applicationStateChanged, this, &QAndroidSignalStrength::ApplicationStateChanged);
SetNewAppState(APP_STATE_CREATE);
}
QAndroidSignalStrength::~QAndroidSignalStrength()
{
SetNewAppState(APP_STATE_DESTROY);
}
QObject* QAndroidSignalStrength::qmlInstance(QQmlEngine *engine, QJSEngine *scriptEngine)
{
Q_UNUSED(engine);
Q_UNUSED(scriptEngine);
return new QAndroidSignalStrength();
}
QAndroidSignalStrength* QAndroidSignalStrength::instance()
{
return m_pInstance;
}
void QAndroidSignalStrength::SignalStrengthChanged(JNIEnv *env, jobject thiz)
{
Q_UNUSED(env)
Q_UNUSED(thiz)
if(m_pInstance != nullptr)
{
emit m_pInstance->signalStrengthChanged();
emit m_pInstance->signalLevelChanged();
}
}
int QAndroidSignalStrength::getSignalStrength()
{
if(m_JavaSignalStrength.isValid())
{
return m_JavaSignalStrength.callMethod<jint>("getSignalStrength");
}
return 0;
}
QAndroidSignalStrength::SIGNAL_LEVEL QAndroidSignalStrength::getSignalLevel()
{
const int SignalStrength = getSignalStrength();
SIGNAL_LEVEL SignalLevel;
if(SignalStrength >= 30)
SignalLevel = LEVEL_GREAT;
else if(SignalStrength >= 20)
SignalLevel = LEVEL_GOOD;
else if(SignalStrength >= 12)
SignalLevel = LEVEL_MODERATE;
else if(SignalStrength >= 5)
SignalLevel = LEVEL_POOR;
else
SignalLevel = LEVEL_NONE;
return SignalLevel;
}
void QAndroidSignalStrength::ApplicationStateChanged(Qt::ApplicationState State)
{
SetNewAppState((State == Qt::ApplicationActive) ? APP_STATE_START : APP_STATE_STOP);
}
void QAndroidSignalStrength::SetNewAppState(APP_STATE NewState)
{
if(m_JavaSignalStrength.isValid())
{
m_JavaSignalStrength.callMethod<void>("appStateChanged",
"(I)V",
NewState
);
}
}