C++ QAndroidJniEnvironment::NewObjectArray方法代码示例

本文整理汇总了C++中QAndroidJniEnvironment::NewObjectArray方法的典型用法代码示例。如果您正苦于以下问题：C++ QAndroidJniEnvironment::NewObjectArray方法的具体用法？C++ QAndroidJniEnvironment::NewObjectArray怎么用？C++ QAndroidJniEnvironment::NewObjectArray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::NewObjectArray方法的6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: addToImageGallery

void Wpp::addToImageGallery(const QString& imageFullPath)
{

#if defined(Q_OS_ANDROID)
	/*
	 http://stackoverflow.com/questions/2170214/image-saved-to-sdcard-doesnt-appear-in-androids-gallery-app
	File imageFile = ...
	MediaScannerConnection.scanFile(this, new String[] { imageFile.getPath() }, new String[] { "image/jpeg" }, null);
	 */

	QAndroidJniObject activity = QtAndroid::androidActivity();
	qDebug() << __FUNCTION__ << "activity.isValid()=" << activity.isValid();

	QAndroidJniEnvironment env;

	//new String[] { imageFile.getPath() }
	jobjectArray imageFilePaths = (jobjectArray)env->NewObjectArray(
		1,
		env->FindClass("java/lang/String"),
		(jobject)0
	);
	QAndroidJniObject imagePathJString = QAndroidJniObject::fromString(imageFullPath);
	env->SetObjectArrayElement(
		imageFilePaths, 0, imagePathJString.object<jstring>() );

	//new String[] { "image/jpeg", "image/png", "image/gif" }
	jobjectArray imageFileTypes = (jobjectArray)env->NewObjectArray(
		3,
		env->FindClass("java/lang/String"),
		(jobject)0
	);
	QAndroidJniObject imageType1 = QAndroidJniObject::fromString("image/jpeg");
	env->SetObjectArrayElement(
		imageFileTypes, 0, imageType1.object<jstring>() );
	QAndroidJniObject imageType2 = QAndroidJniObject::fromString("image/png");
	env->SetObjectArrayElement(
		imageFileTypes, 1, imageType2.object<jstring>() );
	QAndroidJniObject imageType3 = QAndroidJniObject::fromString("image/gif");
	env->SetObjectArrayElement(
		imageFileTypes, 2, imageType3.object<jstring>() );


	QAndroidJniObject::callStaticMethod<void>("android/media/MediaScannerConnection",
											  "scanFile",
											  "(Landroid/content/Context;[Ljava/lang/String;[Ljava/lang/String;Landroid/media/MediaScannerConnection$OnScanCompletedListener;)V",
											  activity.object<jobject>(),
											  imageFilePaths, imageFileTypes, (jobject)0);



	env->DeleteLocalRef(imageFilePaths);
	env->DeleteLocalRef(imageFileTypes);

#else

#endif


}

开发者ID:AndrewDesign，项目名称:wpp-qt，代码行数:59，代码来源:Wpp.cpp

示例2: getLocalPathFromUri

    QString getLocalPathFromUri(const QAndroidJniObject& uri) {
        // uri: Landroid/net/Uri;
        // [url](http://stackoverflow.com/questions/34163437/qt-and-android-gallery-mediastore-using-qandroidjniobject)

        QAndroidJniObject dadosAndroid
                = QAndroidJniObject::getStaticObjectField(
                    "android/provider/MediaStore$MediaColumns",
                    "DATA",
                    "Ljava/lang/String;");

        QAndroidJniEnvironment env;
        jobjectArray projecao
                = (jobjectArray)env->NewObjectArray(1,
                                                    env->FindClass("java/lang/String"),
                                                    NULL);

        jobject projacaoDadosAndroid
                = env->NewStringUTF(dadosAndroid.toString().toStdString().c_str());

        env->SetObjectArrayElement(projecao, 0, projacaoDadosAndroid);

        QAndroidJniObject contentResolver
                = QtAndroid::androidActivity()
                .callObjectMethod("getContentResolver",
                                  "()Landroid/content/ContentResolver;");

        QAndroidJniObject cursor
                = contentResolver.callObjectMethod("query",
                                                   "(Landroid/net/Uri;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;",
                                                   uri.object<jobject>(), projecao, NULL, NULL, NULL);

        jint columnIndex = cursor.callMethod<jint>("getColumnIndex",
                                                   "(Ljava/lang/String;)I",
                                                   dadosAndroid.object<jstring>());

        cursor.callMethod<jboolean>("moveToFirst", "()Z");

        QAndroidJniObject resultado
                = cursor.callObjectMethod("getString",
                                          "(I)Ljava/lang/String;",
                                          columnIndex);

        QString imagemCaminho = "file://" + resultado.toString();

        return imagemCaminho;
    }

开发者ID:GDPURJYFS，项目名称:A-week-to-develop-android-app-plan，代码行数:46，代码来源:callnativegallery.cpp

示例3: fallBackConnect

bool QBluetoothSocketPrivate::fallBackConnect(QAndroidJniObject uuid, int channel)
{
    qCWarning(QT_BT_ANDROID) << "Falling back to workaround.";

    QAndroidJniEnvironment env;
    jclass remoteDeviceClazz = env->GetObjectClass(remoteDevice.object());
    jmethodID getClassMethod = env->GetMethodID(remoteDeviceClazz, "getClass", "()Ljava/lang/Class;");
    if (!getClassMethod) {
        qCWarning(QT_BT_ANDROID) << "BluetoothDevice.getClass method could not be found.";
        return false;
    }


    QAndroidJniObject remoteDeviceClass = QAndroidJniObject(env->CallObjectMethod(remoteDevice.object(), getClassMethod));
    if (!remoteDeviceClass.isValid()) {
        qCWarning(QT_BT_ANDROID) << "Could not invoke BluetoothDevice.getClass.";
        return false;
    }

    jclass classClass = env->FindClass("java/lang/Class");
    jclass integerClass = env->FindClass("java/lang/Integer");
    jfieldID integerType = env->GetStaticFieldID(integerClass, "TYPE", "Ljava/lang/Class;");
    jobject integerObject = env->GetStaticObjectField(integerClass, integerType);
    if (!integerObject) {
        qCWarning(QT_BT_ANDROID) << "Could not get Integer.TYPE";
        return false;
    }

    jobjectArray paramTypes = env->NewObjectArray(1, classClass, integerObject);
    if (!paramTypes) {
        qCWarning(QT_BT_ANDROID) << "Could not create new Class[]{Integer.TYPE}";
        return false;
    }

    QAndroidJniObject parcelUuid("android/os/ParcelUuid", "(Ljava/util/UUID;)V",
                                 uuid.object());
    if (parcelUuid.isValid()) {
        jint socketChannel = remoteDevice.callMethod<jint>("getServiceChannel",
                                                           "(Landroid/os/ParcelUuid;)I",
                                                           parcelUuid.object());
        if (env->ExceptionCheck()) {
            env->ExceptionDescribe();
            env->ExceptionClear();
        }

        if (socketChannel
                == remoteDevice.getStaticField<jint>("android/bluetooth/BluetoothDevice", "ERROR")) {
            qCWarning(QT_BT_ANDROID) << "Cannot determine RFCOMM service channel.";
        } else {
            qCWarning(QT_BT_ANDROID) << "Using found rfcomm channel" << socketChannel;
            channel = socketChannel;
        }
    }

    QAndroidJniObject method = remoteDeviceClass.callObjectMethod(
                "getMethod",
                "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;",
                QAndroidJniObject::fromString(QLatin1String("createRfcommSocket")).object<jstring>(),
                paramTypes);
    if (!method.isValid() || env->ExceptionCheck()) {
        qCWarning(QT_BT_ANDROID) << "Could not invoke getMethod";
        if (env->ExceptionCheck()) {
            env->ExceptionDescribe();
            env->ExceptionClear();
        }
        return false;
    }

    jclass methodClass = env->GetObjectClass(method.object());
    jmethodID invokeMethodId = env->GetMethodID(
                methodClass, "invoke",
                "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;");
    if (!invokeMethodId) {
        qCWarning(QT_BT_ANDROID) << "Could not invoke method.";
        return false;
    }

    jmethodID valueOfMethodId = env->GetStaticMethodID(integerClass, "valueOf", "(I)Ljava/lang/Integer;");
    jclass objectClass = env->FindClass("java/lang/Object");
    jobjectArray invokeParams = env->NewObjectArray(1, objectClass, env->CallStaticObjectMethod(integerClass, valueOfMethodId, channel));


    jobject invokeResult = env->CallObjectMethod(method.object(), invokeMethodId,
                                                 remoteDevice.object(), invokeParams);
    if (!invokeResult)
    {
        qCWarning(QT_BT_ANDROID) << "Invoke Resulted with error.";
        if (env->ExceptionCheck()) {
            env->ExceptionDescribe();
            env->ExceptionClear();
        }
        return false;
    }

    socketObject = QAndroidJniObject(invokeResult);
    socketObject.callMethod<void>("connect");
    if (env->ExceptionCheck()) {
        env->ExceptionDescribe();
        env->ExceptionClear();

//.........这里部分代码省略.........

开发者ID:Drakey83，项目名称:steamlink-sdk，代码行数:101，代码来源:qbluetoothsocket_android.cpp

示例4: handleActivityResult


//.........这里部分代码省略.........

				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 )
			{
				jint Intent__FLAG_GRANT_READ_URI_PERMISSION = QAndroidJniObject::getStaticField<jint>(
							"android.content.Intent", "FLAG_GRANT_READ_URI_PERMISSION");
				jint Intent__FLAG_GRANT_WRITE_URI_PERMISSION = QAndroidJniObject::getStaticField<jint>(
							"android.content.Intent", "FLAG_GRANT_WRITE_URI_PERMISSION");
				jint takeFlags = data.callMethod<jint>("getFlags","()I");
				takeFlags = takeFlags & ( Intent__FLAG_GRANT_READ_URI_PERMISSION | Intent__FLAG_GRANT_WRITE_URI_PERMISSION );

				contentResolver.callMethod<void>("takePersistableUriPermission","(Landroid/net/Uri;I)V",
																  uri.object<jobject>(), takeFlags);
			}*/
	/*
	String [] proj={MediaStore.Images.Media.DATA};
		Cursor cursor = getContentResolver().query(uri, proj,  null, null, null);
		int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
		cursor.moveToFirst();
		String path = cursor.getString(column_index);
		cursor.close();
	 */
			QAndroidJniObject MediaStore_Images_Media_DATA
					= QAndroidJniObject::getStaticObjectField(
						"android/provider/MediaStore$MediaColumns", "DATA", "Ljava/lang/String;");
						//"android/provider/MediaStore$Images$Media", "DATA", "Ljava/lang/String;");
			qDebug() << "MediaStore_Images_Media_DATA.isValid()=" << MediaStore_Images_Media_DATA.isValid();

			QAndroidJniObject nullObj;
			jstring emptyJString = env->NewStringUTF("");
			jobjectArray projection = (jobjectArray)env->NewObjectArray(
				1,
				env->FindClass("java/lang/String"),
				emptyJString
			);
			jobject projection0 = env->NewStringUTF( MediaStore_Images_Media_DATA.toString().toStdString().c_str() );
			env->SetObjectArrayElement(
				projection, 0, projection0 );

			//	Cursor cursor = getContentResolver().query(uri, proj,  null, null, null);
			QAndroidJniObject cursor = contentResolver.callObjectMethod("query",
				"(Landroid/net/Uri;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;",
				uri.object<jobject>(), projection, nullObj.object<jstring>(), nullObj.object<jobjectArray>(), nullObj.object<jstring>());
			qDebug() << __FUNCTION__ << "cursor.isValid()=" << cursor.isValid();

			//int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
			jint column_index = cursor.callMethod<jint>(
						"getColumnIndexOrThrow","(Ljava/lang/String;)I", MediaStore_Images_Media_DATA.object<jstring>());
			qDebug() << "column_index=" << column_index;

			//cursor.moveToFirst();
			cursor.callMethod<jboolean>("moveToFirst");

			//	String path = cursor.getString(column_index);
			QAndroidJniObject path = cursor.callObjectMethod(
						"getString",
						"(I)Ljava/lang/String;", column_index );
			qDebug() << __FUNCTION__ << "path.isValid()=" << path.isValid();
			QString filePath = path.toString();
			qDebug() << "filePath=" << filePath;
			//cursor.close();
			cursor.callMethod<jboolean>("close");


			env->DeleteLocalRef(emptyJString);
			env->DeleteLocalRef(projection);
			env->DeleteLocalRef(projection0);

			QStringList paths;
			paths.append(filePath);
			emit this->accepted(paths);
			//m_imagePath = filePath;
			//emit this->imagePathChanged();
		}
	}
}

开发者ID:AndrewDesign，项目名称:wpp-qt，代码行数:101，代码来源:ImagePicker.cpp

示例5: managedQuery

QList<QObject *> Gallery::fetchAll()
{

#ifdef Q_OS_ANDROID
	//ref(android): http://stackoverflow.com/questions/4195660/get-list-of-photo-galleries-on-android
	//ref(thumbnail): http://stackoverflow.com/questions/5013176/displaying-photo-thumbnails-on-map
	/*
		// which image properties are we querying
			String[] projection = new String[]{
					MediaStore.Images.Media._ID,
					MediaStore.Images.Media.BUCKET_DISPLAY_NAME,
					MediaStore.Images.Media.DATE_TAKEN
			};
	 */
	QAndroidJniObject MediaStore_Images_Media__ID
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/BaseColumns", "_ID", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_Media__ID.isValid()=" << MediaStore_Images_Media__ID.isValid();

	QAndroidJniObject MediaStore_Images_Media_BUCKET_ID
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$Images$ImageColumns", "BUCKET_ID", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_Media_BUCKET_ID.isValid()=" << MediaStore_Images_Media_BUCKET_ID.isValid();

	QAndroidJniObject MediaStore_Images_Media_BUCKET_DISPLAY_NAME
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$Images$ImageColumns", "BUCKET_DISPLAY_NAME", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_Media_BUCKET_DISPLAY_NAME.isValid()=" << MediaStore_Images_Media_BUCKET_DISPLAY_NAME.isValid();

	QAndroidJniObject MediaStore_Images_Media_DATE_TAKEN
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$Images$ImageColumns", "DATE_TAKEN", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_Media_DATE_TAKEN.isValid()=" << MediaStore_Images_Media_DATE_TAKEN.isValid();

	QAndroidJniObject MediaStore_MediaColumns_DATA
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$MediaColumns", "DATA", "Ljava/lang/String;");
	qDebug() << "MediaStore_MediaColumns_DATA.isValid()=" << MediaStore_MediaColumns_DATA.isValid();

	QAndroidJniObject MediaStore_MediaColumns_WIDTH
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$MediaColumns", "WIDTH", "Ljava/lang/String;");
	qDebug() << "MediaStore_MediaColumns_WIDTH.isValid()=" << MediaStore_MediaColumns_WIDTH.isValid();

	QAndroidJniObject MediaStore_MediaColumns_HEIGHT
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$MediaColumns", "HEIGHT", "Ljava/lang/String;");
	qDebug() << "MediaStore_MediaColumns_HEIGHT.isValid()=" << MediaStore_MediaColumns_HEIGHT.isValid();

	QAndroidJniObject MediaStore_Images_ImageColumns_MINI_THUMB_MAGIC
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$Images$ImageColumns", "MINI_THUMB_MAGIC", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_ImageColumns_MINI_THUMB_MAGIC.isValid()=" << MediaStore_Images_ImageColumns_MINI_THUMB_MAGIC.isValid();

	jint MediaStore_Images_Thumbnails_MICRO_KIND = QAndroidJniObject::getStaticField<jint>(
				"android/provider/MediaStore$Images$Thumbnails", "MICRO_KIND");
	qDebug() << "MediaStore_Images_Thumbnails_MICRO_KIND=" << MediaStore_Images_Thumbnails_MICRO_KIND;

	QAndroidJniObject MediaStore_Images_Thumbnails_IMAGE_ID
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$Images$Thumbnails", "IMAGE_ID", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_Thumbnails_IMAGE_ID.isValid()=" << MediaStore_Images_Thumbnails_IMAGE_ID.isValid();

	QAndroidJniObject MediaStore_Images_ImageColumns_ORIENTATION
			= QAndroidJniObject::getStaticObjectField(
			"android/provider/MediaStore$Images$ImageColumns", "ORIENTATION", "Ljava/lang/String;");
	qDebug() << "MediaStore_Images_ImageColumns_ORIENTATION.isValid()=" << MediaStore_Images_ImageColumns_ORIENTATION.isValid();


	QAndroidJniEnvironment env;
	jstring emptyJString = env->NewStringUTF("");

	jobjectArray projection = (jobjectArray)env->NewObjectArray(
		9,
		env->FindClass("java/lang/String"),
		emptyJString
	);
	jobject projection0 = env->NewStringUTF( MediaStore_Images_Media__ID.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 0, projection0 );
	jobject projection1 = env->NewStringUTF( MediaStore_Images_Media_BUCKET_ID.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 1, projection1 );
	jobject projection2 = env->NewStringUTF( MediaStore_Images_Media_BUCKET_DISPLAY_NAME.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 2, projection2 );
	jobject projection3 = env->NewStringUTF( MediaStore_Images_Media_DATE_TAKEN.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 3, projection3 );
	jobject projection4 = env->NewStringUTF( MediaStore_MediaColumns_DATA.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 4, projection4 );
	jobject projection5 = env->NewStringUTF( MediaStore_MediaColumns_WIDTH.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 5, projection5 );
	jobject projection6 = env->NewStringUTF( MediaStore_MediaColumns_HEIGHT.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
		projection, 6, projection6 );
	jobject projection7 = env->NewStringUTF( MediaStore_Images_ImageColumns_MINI_THUMB_MAGIC.toString().toStdString().c_str() );
	env->SetObjectArrayElement(
//.........这里部分代码省略.........

开发者ID:hongtoushizi，项目名称:wpp-qt，代码行数:101，代码来源:Gallery.cpp

示例6: handleActivityResult

void Gallery::handleActivityResult(int receiverRequestCode, int resultCode, const QAndroidJniObject & data)
{
	int PICK_FROM_FILE = 1;
	int SHOOT_PHOTO = 2;
	jint Activity__RESULT_OK = QAndroidJniObject::getStaticField<jint>(
				"android.app.Activity", "RESULT_OK");

	if ( receiverRequestCode == PICK_FROM_FILE && resultCode == Activity__RESULT_OK )
	{
		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"
		 */
		QAndroidJniObject activity = QtAndroid::androidActivity();
		qDebug() << __FUNCTION__ << "activity.isValid()=" << activity.isValid();

		QAndroidJniObject contentResolver = activity.callObjectMethod("getContentResolver","()Landroid/content/ContentResolver;");
		qDebug() << __FUNCTION__ << "contentResolver.isValid()=" << contentResolver.isValid();

/*
String [] proj={MediaStore.Images.Media.DATA};
	Cursor cursor = getContentResolver().query(uri, proj,  null, null, null);
	int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
	cursor.moveToFirst();
	String path = cursor.getString(column_index);
	cursor.close();
 */
		QAndroidJniObject MediaStore_Images_Media_DATA
				= QAndroidJniObject::getStaticObjectField(
				"android/provider/MediaStore$MediaColumns", "DATA", "Ljava/lang/String;");
		qDebug() << "MediaStore_Images_Media_DATA.isValid()=" << MediaStore_Images_Media_DATA.isValid();

		QAndroidJniObject nullObj;
		jstring emptyJString = env->NewStringUTF("");
		jobjectArray projection = (jobjectArray)env->NewObjectArray(
			1,
			env->FindClass("java/lang/String"),
			emptyJString
		);
		jobject projection0 = env->NewStringUTF( MediaStore_Images_Media_DATA.toString().toStdString().c_str() );
		env->SetObjectArrayElement(
			projection, 0, projection0 );

		//	Cursor cursor = getContentResolver().query(uri, proj,  null, null, null);
		QAndroidJniObject cursor = contentResolver.callObjectMethod("query",
			"(Landroid/net/Uri;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;",
			uri.object<jobject>(), projection, nullObj.object<jstring>(), nullObj.object<jobjectArray>(), nullObj.object<jstring>());
		qDebug() << __FUNCTION__ << "cursor.isValid()=" << cursor.isValid();

		//int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
		jint column_index = cursor.callMethod<jint>(
					"getColumnIndexOrThrow","(Ljava/lang/String;)I", MediaStore_Images_Media_DATA.object<jstring>());
		qDebug() << "column_index=" << column_index;

		//cursor.moveToFirst();
		cursor.callMethod<jboolean>("moveToFirst");

		//	String path = cursor.getString(column_index);
		QAndroidJniObject path = cursor.callObjectMethod(
					"getString",
					"(I)Ljava/lang/String;", column_index );
		qDebug() << __FUNCTION__ << "path.isValid()=" << path.isValid();
		QString filePath = path.toString();

		//cursor.close();
		cursor.callMethod<jboolean>("close");


		env->DeleteLocalRef(emptyJString);
		env->DeleteLocalRef(projection);
		env->DeleteLocalRef(projection0);
/*
		QAndroidJniObject inputStream = contentResolver.callObjectMethod(
					"openInputStream","(Landroid/net/Uri;)Ljava/io/InputStream;", uri.object<jobject>());
		qDebug() << __FUNCTION__ << "inputStream.isValid()=" << inputStream.isValid();

		QStringList paths = QStandardPaths::standardLocations(QStandardPaths::DataLocation);
		QDir dir( paths.first() );
		QDir parentDir( dir.filePath("..") );
		qDebug() << "parent path: " << parentDir.absolutePath();
		if ( !dir.exists() )
		{
			qDebug() << "dir not exist, make it:" << dir;
			qDebug() << "dir.name: " << dir.dirName();
			qDebug() << "new make dir returns: " << parentDir.mkpath( dir.dirName() );
			//qDebug() << "make dir returns: " << dir.mkdir(".");
		}
		QString pickFile = paths.first().append("/").append("PickFile");

		QAndroidJniEnvironment env;
		jbyteArray byteArray = env->NewByteArray(1024);

		jint fileSize = inputStream.callMethod<jint>(
					"available","()I");
		qDebug() << "fileSize=" << fileSize;

		QFile file( pickFile );
//.........这里部分代码省略.........

开发者ID:hongtoushizi，项目名称:wpp-qt，代码行数:101，代码来源:Gallery.cpp

注：本文中的QAndroidJniEnvironment::NewObjectArray方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。