完成

GMBase/Classes/OCEmptyView.m

@@ -16,7 +16,7 @@
 {
     self = [super init];
     if (self) {
-
+        self.clipsToBounds = YES;
     }
     return self;
 }
@@ -86,6 +86,7 @@
     _tipIcon = [UIImageView new];
     _tipLabel = [UILabel new];
     _tipButton = [OCRedGradientButton buttonWithType:UIButtonTypeCustom];
+    _tipButton.frame = CGRectMake(0, 0, 10, 10); //给一个默认的rect，让系统调用DrawRect方法
     [self addSubview:_tipIcon];
     [self addSubview:_tipLabel];
     [self addSubview:_tipButton];
@@ -106,16 +107,8 @@
 
 
 
-- (void)layoutSubviews {
-    [super layoutSubviews];
-    [_tipIcon mas_remakeConstraints:^(MASConstraintMaker *make) {
-        make.centerX.equalTo(self);
-        make.centerY.equalTo(self).offset(-75);
-    }];
-    [_tipLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
-        make.top.equalTo(_tipIcon.mas_bottom).offset(-35);
-        make.centerX.mas_equalTo(self);
-    }];
+- (void)setType:(OCEmptyViewType)type{
+    _type = type;
     switch (self.type) {
         case OCEmptyViewTypeEmpty:{
             _tipButton.hidden = YES;
@@ -127,16 +120,16 @@
             _tipButton.hidden = NO;
             _tipIcon.image = [UIImage imageNamed:@"network_failed"];
             _tipLabel.text = @"哎呀！出错了！";
-            [_tipButton mas_remakeConstraints:^(MASConstraintMaker *make) {
-                make.top.equalTo(_tipIcon.mas_bottom).offset(15);
-                make.centerX.equalTo(self);
-                make.width.mas_equalTo(150);
-                make.height.mas_equalTo(33);
-            }];
         }
         default:
             break;
     }
+}
+
+
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
     if (_tipImage.length > 0) {
         _tipIcon.image = [UIImage imageNamed:_tipImage];
     }
@@ -144,6 +137,27 @@
         _tipLabel.text = _tipText;
     }
 }
+
+
+- (void)updateConstraints{
+    [super updateConstraints];
+    [_tipIcon mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.centerX.equalTo(self);
+        make.centerY.equalTo(self).offset(-75);
+    }];
+    [_tipLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(_tipIcon.mas_bottom).offset(-35);
+        make.centerX.mas_equalTo(self);
+    }];
+    [_tipButton mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(_tipIcon.mas_bottom).offset(15);
+        make.centerX.equalTo(self);
+        make.width.mas_equalTo(150);
+        make.height.mas_equalTo(33);
+    }];
+}
+
+
 - (void)reloadBtnTap {
     if ([self.delegate respondsToSelector:@selector(emptyViewDidClickReload)]) {
         [self.delegate emptyViewDidClickReload];

GMBase/Classes/WMBaseListViewController.h

@@ -11,7 +11,7 @@
 #import "OCEmptyView.h"
 #import "WMFetchDataViewModel.h"
 
-@interface WMBaseListViewController : WMBaseViewController<UITableViewDelegate,UITableViewDataSource>
+@interface WMBaseListViewController : WMBaseViewController<UITableViewDelegate,UITableViewDataSource, OCEmptyViewDelegate>
 {
 
     UITableView *_table;

GMBase/Classes/WMBaseListViewController.m

@@ -11,7 +11,7 @@
 #import <GMRefresh/GMRefreshHeader.h>
 #import <Masonry/Masonry.h>
 
-@interface WMBaseListViewController () <OCEmptyViewDelegate>
+@interface WMBaseListViewController ()
 
 
 @end
@@ -211,7 +211,7 @@
     _emptyView.type = type;
     _emptyView.hidden = NO;
     _emptyView.tipText = [self getEmptyText];
-    [_emptyView setNeedsLayout];
+    [_emptyView setNeedsUpdateConstraints];
 }
 
 - (void)hideEmptyView {