MUBlockDelegate

1.normally, we use delegates as follows:

firstly,

@protocol TestProtcol <NSObject>

- (NSString*) testDelegateMethod:(NSString*) aString;

@end

@interface TestDelegateImpl : NSObject<TestProtcol>

@end

and：

@implementation TestDelegateImpl

- (NSString*) testDelegateMethod:(NSString *)aString
{
    return aString;
}

@end

secondly,

#import "TestProtcol.h"

@interface TestObject : NSObject

@property(nonatomic, weak) id<TestProtcol> delegate;

- (NSString*) callDelegate:(NSString*) aString;

@end

@implementation TestObject

@synthesize delegate = _delegate;

- (NSString*) callDelegate:(NSString*) aString
{
    if ([_delegate respondsToSelector:@selector(testDelegateMethod:)]) {
        return [_delegate testDelegateMethod:aString];
    }
    
    return nil;
}

@end

at last, we do some tests:

TestDelegateImpl* testDelegate = [[TestDelegateImpl alloc] init];
TestObject* testObject = [[TestObject alloc] init];
testObject.delegate = testDelegate;

NSLog(@"result:%@", [testObject callDelegate:@"testNormal"]);

2.if you use MUBlockDelegate:

firstly,

MUBlockDelegate* testDelegate = [MUBlockDelegate delegateForSelectorString:@"(@)testDelegateMethod(@)" delegateBlock:^(NSInvocation *anInvocation, NSArray *params) {
    
    NSString* testString = [params objectAtIndex:0];
    [anInvocation setReturnValue:&testString];
}];

then, do some tests,

TestObject* testObject = [[TestObject alloc] init];
testObject.delegate = (id<TestProtcol>)testDelegate;

NSString* testResult = [testObject callDelegate:@"testBlock"];
NSLog(@"testResult:%@", testResult);

that's all.

the other approach:

MUBlockDelegate* testDelegate = [MUBlockDelegate delegateForClass:[TestDelegateImpl class] selector:@selector(testDelegateMethod:) delegateBlock:^(NSInvocation *anInvocation, NSArray *params) {
    
    NSString* testString = [params objectAtIndex:0];
    [anInvocation setReturnValue:&testString];
}];

MUBlockDelegate* testDelegate = [MUBlockDelegate delegateForProtocol:@protocol(TestProtcol) selector:@selector(testDelegateMethod:) delegateBlock:^void(NSInvocation* anInvocation, NSArray *params) {
    NSLog(@"params:%@", anInvocation);
    
    NSString* testString = [params objectAtIndex:0];
    [anInvocation setReturnValue:&testString];
}];

do the same thing.

3.run the TESTCASE