Maxim Makhun MaximAlien

MaximAlien / JStringToCharPtr

Created April 29, 2015 15:27

[Android] [JNI] Convert jstring to char *

	JNIEXPORT void JNICALL method_name
	(JNIEnv *env, jobject obj, jstring jstr)
	{
	const char* ch = env->GetStringUTFChars(jstr, 0);

	env->ReleaseStringUTFChars(jstr, ch);
	}

MaximAlien / ClassName

Created April 22, 2015 09:19

[Android] [JNI] Method to get class name as std::string

	static std::string getClassName(JNIEnv *env, jobject entity, jclass clazz)
	{
	jmethodID mid = env->GetMethodID(clazz, "getClass", "()Ljava/lang/Class;");
	jobject clsObj = env->CallObjectMethod(entity, mid);
	jclass clazzz = env->GetObjectClass(clsObj);
	mid = env->GetMethodID(clazzz, "getName", "()Ljava/lang/String;");
	jstring strObj = (jstring)env->CallObjectMethod(clsObj, mid);

	const char* str = env->GetStringUTFChars(strObj, NULL);
	std::string res(str);

MaximAlien / HexToColor

Last active August 29, 2015 14:19

[iOS] [Objective-C] Helper method to convert hex representation of the color to UIColor

	@interface UIColor (Hex)

	+ (CGFloat)colorComponentFrom:(NSString *)string start:(NSUInteger)start length:(NSUInteger)length;

	@end

	@implementation UIColor (Hex)

	+ (UIColor )colorWithHexString:(NSString )hex
	{

MaximAlien / RandomColor

Last active August 29, 2015 14:19

[iOS] [Objective-C] Random color generator

	CGFloat h = (arc4random() % 128 / 256.0) + 0.5;
	CGFloat s = (arc4random() % 128 / 256.0) + 0.5;
	CGFloat b = (arc4random() % 128 / 256.0) + 0.5;
	UIColor *color = [UIColor colorWithHue:h saturation:s brightness:b alpha:1.0f];