本文整理汇总了C++中QAndroidJniEnvironment::GetArrayLength方法的典型用法代码示例。如果您正苦于以下问题：C++ QAndroidJniEnvironment::GetArrayLength方法的具体用法？C++ QAndroidJniEnvironment::GetArrayLength怎么用？C++ QAndroidJniEnvironment::GetArrayLength使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QAndroidJniEnvironment的用法示例。
在下文中一共展示了QAndroidJniEnvironment::GetArrayLength方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: availablePortsByFiltersOfDevices
QList<QSerialPortInfo> availablePortsByFiltersOfDevices(bool &ok)
{
QList<QSerialPortInfo> serialPortInfoList;
//__android_log_print(ANDROID_LOG_INFO, V_TAG, "Collecting device list");
QAndroidJniObject resultL = QAndroidJniObject::callStaticObjectMethod(
V_jniClassName,
"availableDevicesInfo",
"()[Ljava/lang/String;");
if (!resultL.isValid()) {
__android_log_print(ANDROID_LOG_ERROR, V_TAG, "Error from availableDevicesInfo");
ok = false;
return serialPortInfoList;
}
QAndroidJniEnvironment envL;
jobjectArray objArrayL = resultL.object<jobjectArray>();
int countL = envL->GetArrayLength(objArrayL);
for (int iL = 0; iL < countL; iL++)
{
QSerialPortInfoPrivate priv;
jstring stringL = (jstring)(envL->GetObjectArrayElement(objArrayL, iL));
const char *rawStringL = envL->GetStringUTFChars(stringL, 0);
//__android_log_print(ANDROID_LOG_INFO, V_TAG, "Adding device: %s", rawStringL);
QStringList strListL = QString::fromUtf8(rawStringL).split(QStringLiteral(":"));
envL->ReleaseStringUTFChars(stringL, rawStringL);
priv.portName = strListL[0];
priv.device = strListL[0];
priv.manufacturer = strListL[1];
priv.productIdentifier = strListL[2].toInt();
priv.hasProductIdentifier = (priv.productIdentifier != 0) ? true: false;
priv.vendorIdentifier = strListL[3].toInt();
priv.hasVendorIdentifier = (priv.vendorIdentifier != 0) ? true: false;
serialPortInfoList.append(priv);
}
return serialPortInfoList;
}示例2: requestImage
QImage IconImageProvider::requestImage(const QString &id, QSize *size, const QSize &requestedSize)
{
Q_UNUSED(size);
Q_UNUSED(requestedSize);
QImage image;
#ifdef Q_OS_ANDROID
QAndroidJniObject appIcon = QAndroidJniObject::callStaticObjectMethod("com/iktwo/qutelauncher/QuteLauncher",
"getApplicationIcon",
"(Ljava/lang/String;)[B",
QAndroidJniObject::fromString(id).object<jstring>());
QAndroidJniEnvironment env;
jbyteArray iconDataArray = appIcon.object<jbyteArray>();
if (!iconDataArray) {
qDebug() << Q_FUNC_INFO << "No icon data";
return image;
}
jsize iconSize = env->GetArrayLength(iconDataArray);
if (iconSize > 0) {
jboolean jfalse = false;
jbyte *icon = env->GetByteArrayElements(iconDataArray, &jfalse);
image = QImage::fromData((uchar*) icon, iconSize,"PNG");
env->ReleaseByteArrayElements(iconDataArray, icon, JNI_ABORT);
}
return image;
#else
Q_UNUSED(id)
return QImage("://images/test","PNG");
#endif
}示例3: test
void Wpp::test()
{
#ifdef Q_OS_ANDROID
/*myUsbManager = (UsbManager) getSystemService(USB_SERVICE);
HashMap<String, UsbDevice> deviceList = myUsbManager.getDeviceList();
if (!deviceList.isEmpty())
{
for (UsbDevice device : deviceList.values())
{
// 枚举设备
if (device.getVendorId() == VendorID && device.getProductId() == ProductID)
{
myUsbDevice = device;
}
}
}
*/
int VendorID = 0;
int ProductID = 0;
QAndroidJniObject myUsbDevice;
QAndroidJniObject activity = QtAndroid::androidActivity();
qDebug() << __FUNCTION__ << "activity.isValid()=" << activity.isValid();
QAndroidJniObject Context__USB_SERVICE = QAndroidJniObject::getStaticObjectField(
"android/content/Context", "USB_SERVICE", "Ljava/lang/String;");
qDebug() << __FUNCTION__ << "Context__USB_SERVICE.isValid()=" << Context__USB_SERVICE.isValid();
//myUsbManager = (UsbManager) getSystemService(USB_SERVICE);
QAndroidJniObject myUsbManager = activity.callObjectMethod(
"getSystemService","(Ljava/lang/String;)Ljava/lang/Object;",
Context__USB_SERVICE.object<jobject>() );
qDebug() << __FUNCTION__ << "myUsbManager.isValid()=" << myUsbManager.isValid();
//HashMap<String, UsbDevice> deviceList = myUsbManager.getDeviceList();
QAndroidJniObject deviceList = myUsbManager.callObjectMethod(
"getDeviceList","()Ljava/util/HashMap;");
qDebug() << __FUNCTION__ << "deviceList.isValid()=" << deviceList.isValid();
jboolean isEmpty = true;
isEmpty = deviceList.callMethod<jboolean>("isEmpty");
if ( !isEmpty )
{
//HashMap - Collection<V> values()
QAndroidJniObject values = deviceList.callObjectMethod(
"values","()Ljava/util/Collection;");
qDebug() << __FUNCTION__ << "values.isValid()=" << values.isValid();
//Collection - abstract Object[] toArray()
QAndroidJniObject valuesArrayObj = values.callObjectMethod(
"toArray","()[Ljava/lang/Object;");
qDebug() << __FUNCTION__ << "valuesArrayObj.isValid()=" << valuesArrayObj.isValid();
QAndroidJniEnvironment env;
jobjectArray valuesArray = valuesArrayObj.object<jobjectArray>();
const int valuesCount = env->GetArrayLength(valuesArray);
qDebug() << __FUNCTION__ << ":valuesArray=" << (void*)valuesArray;
qDebug() << __FUNCTION__ << ":valuesCount=" << valuesCount;
for ( int i = 0 ; i < valuesCount ; i++ )
{
jobject value = env->GetObjectArrayElement(valuesArray, i);
QAndroidJniObject device(value);
//device.getVendorId()
jint vendorId = deviceList.callMethod<jint>("getVendorId","()I");
qDebug() << "i=" << i << ":vendorId=" << vendorId;
//device.getProductId()
jint productId = deviceList.callMethod<jint>("getProductId","()I");
qDebug() << "i=" << i << ":productId=" << productId;
if ( productId == ProductID && vendorId == VendorID )
{
myUsbDevice = device;
}
}
}
#endif
}示例4: handleActivityResult
void ImagePicker::handleActivityResult(int receiverRequestCode, int resultCode, const QAndroidJniObject & data)
{
qDebug() << __FUNCTION__;
int PICK_FROM_FILE = 2;
int PICK_FROM_FILE_KITKAT = 3;
jint Activity__RESULT_OK = QAndroidJniObject::getStaticField<jint>(
"android/app/Activity", "RESULT_OK");
qDebug() << __FUNCTION__ <<":receiverRequestCode=" << receiverRequestCode
<< ",resultCode=" << resultCode
<< ",Activity__RESULT_OK=" << Activity__RESULT_OK;
if ( ( receiverRequestCode == PICK_FROM_FILE || receiverRequestCode == PICK_FROM_FILE_KITKAT
|| receiverRequestCode == 200
|| receiverRequestCode == 9000 )
&& resultCode == Activity__RESULT_OK )
{
if ( receiverRequestCode == 200 )
{
QAndroidJniEnvironment env;
QAndroidJniObject pathsJavaObj = data.callObjectMethod("getStringArrayExtra","(Ljava/lang/String;)[Ljava/lang/String;");
qDebug() << __FUNCTION__ << "pathsJavaObj.isValid()=" << pathsJavaObj.isValid();
jobjectArray pathArray = pathsJavaObj.object<jobjectArray>();
int stringCount = env->GetArrayLength(pathArray);
QStringList paths;
for (int i=0; i<stringCount; i++)
{
jstring string = (jstring) env->GetObjectArrayElement(pathArray, i);
const char *rawString = env->GetStringUTFChars(string, 0);
// Don't forget to call `ReleaseStringUTFChars` when you're done.
QString path(rawString);
qDebug() << "path[]=" << path;
paths.append(path);
env->ReleaseStringUTFChars(string, rawString);
}
emit this->accepted(paths);
}
else if ( receiverRequestCode == 9000 )//PhotoPicker
{
qDebug() << __FUNCTION__ << ":code=9000";
QAndroidJniEnvironment env;
QAndroidJniObject PhotoPickerActivity__KEY_SELECTED_PHOTOS
= QAndroidJniObject::getStaticObjectField(
"me/iwf/photopicker/PhotoPickerActivity", "KEY_SELECTED_PHOTOS", "Ljava/lang/String;");
qDebug() << "PhotoPickerActivity__KEY_SELECTED_PHOTOS.isValid()=" << PhotoPickerActivity__KEY_SELECTED_PHOTOS.isValid();
QAndroidJniObject photos = data.callObjectMethod("getStringArrayListExtra","(Ljava/lang/String;)Ljava/util/ArrayList;",
PhotoPickerActivity__KEY_SELECTED_PHOTOS.object<jstring>());
qDebug() << "photos.isValid()=" << photos.isValid();
QAndroidJniObject photosObjectArray = photos.callObjectMethod("toArray","()[Ljava/lang/Object;");
qDebug() << "photosObjectArray.isValid()=" << photosObjectArray.isValid();
jobjectArray pathArray = photosObjectArray.object<jobjectArray>();
int stringCount = env->GetArrayLength(pathArray);
qDebug() << "pathArray=" << (void*)pathArray;
qDebug() << "stringCount=" << stringCount;
QStringList paths;
for (int i=0; i<stringCount; i++)
{
qDebug() << "for pathArray...i=" << i;
jstring string = (jstring) env->GetObjectArrayElement(pathArray, i);
const char *rawString = env->GetStringUTFChars(string, 0);
// Don't forget to call `ReleaseStringUTFChars` when you're done.
qDebug() << "for pathArray...i=" << i << ":rawString=" << rawString;
QString path(rawString);
qDebug() << "path[]=" << path;
paths.append(path);
env->ReleaseStringUTFChars(string, rawString);
}
emit this->accepted(paths);
}
else
{
QAndroidJniEnvironment env;
QAndroidJniObject uri = data.callObjectMethod("getData","()Landroid/net/Uri;");
qDebug() << __FUNCTION__ << "uri.isValid()=" << uri.isValid();
qDebug() << __FUNCTION__ << "uri=" << uri.toString();
/*
url is like: "content://media/external/images/media/87332"
for KitKat(android 4.4), uri is like: "content://com.android.providers.media.documents/document/image:3951"
*/
QAndroidJniObject activity = QtAndroid::androidActivity();
qDebug() << __FUNCTION__ << "activity.isValid()=" << activity.isValid();
QAndroidJniObject contentResolver = activity.callObjectMethod("getContentResolver","()Landroid/content/ContentResolver;");
qDebug() << __FUNCTION__ << "contentResolver.isValid()=" << contentResolver.isValid();
/*if ( receiverRequestCode == PICK_FROM_FILE_KITKAT )
{
//.........这里部分代码省略.........