iOS:refact requestLayout logic

doric-iOS/Pod/Classes/Refresh/DoricSwipeRefreshLayout.m

@@ -20,7 +20,6 @@
 #import "DoricSwipeRefreshLayout.h"
 #import "UIView+Doric.h"
 #import "DoricLayouts.h"
-#import "Doric.h"
 
 @interface DoricSwipeRefreshLayout () <UIScrollViewDelegate>
 
@@ -54,41 +53,13 @@ - (instancetype)init {
     return self;
 }
 
-//- (CGSize)sizeThatFits:(CGSize)size {
-//    if (self.contentView) {
-//        return [self.contentView measureSize:size];
-//    }
-//    return CGSizeZero;
-//}
-//
-//- (BOOL)requestFromSubview:(UIView *)subview {
-//    if (subview == self.headerView) {
-//        return NO;
-//    }
-//    return [super requestFromSubview:subview];
-//}
-
-- (void)layoutSubviews {
-    [super layoutSubviews];
+- (CGSize)sizeThatFits:(CGSize)size {
+    if (self.contentView) {
+        return self.contentView.frame.size;
+    }
+    return CGSizeZero;
 }
 
-//- (void)layoutSelf:(CGSize)targetSize {
-//    if (self.contentOffset.y != 0) {
-//        return;
-//    }
-//    self.width = targetSize.width;
-//    self.height = targetSize.height;
-//    [self.headerView also:^(UIView *it) {
-//        [it layoutSelf:[it measureSize:targetSize]];
-//        it.bottom = 0;
-//        it.centerX = self.centerX;
-//    }];
-//    [self.contentView also:^(UIView *it) {
-//        [it layoutSelf:targetSize];
-//    }];
-//    self.contentSize = self.frame.size;
-//}
-
 - (void)setContentView:(UIView *)contentView {
     if (_contentView) {
         [_contentView removeFromSuperview];