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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
//! [Working with lists]
QStringList getTrackTitles(const QJNIObject &album) {
QStringList stringList;
QJNIObject list = album.callObjectMethod<jobject>("getTitles",
"()Ljava/util/List;");
if (list.isValid()) {
const int size = list.callMethod<jint>("size");
for (int i = 0; i < size; ++i) {
QJNIObject title = list.callObjectMethod<jobject>("get", "(I)Ljava/lang/Object;", i);
stringList.append(title.toString());
}
}
return stringList;
}
//! [Working with lists]
//! [QJNIObject scope]
void function()
{
QString helloString("Hello");
jstring myJString = 0;
{
QJNIObject string = QJNIObject::fromString(string);
myJString = string.object<jstring>();
}
// Ops! myJString is no longer valid.
}
//! [QJNIObject scope]
//! [Check for exceptions]
void function()
{
QJNIObject myString = QJNIObject::fromString("Hello");
jchar c = myString.callMethod<jchar>("charAt", "(I)C", 1000);
QJNIEnvironment env;
if (env->ExceptionCheck()) {
// Handle exception here.
env->ExceptionClear();
}
}
//! [Check for exceptions]
|
