[Example] Fixed navigation bar problem in iOS15 (#1553)

MJRefreshExample.xcodeproj/project.pbxproj

@@ -27,7 +27,6 @@
 		2D9BEB101BB15F4A00AED473 /* MJExample.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAF01BB15F4A00AED473 /* MJExample.m */; };
 		2D9BEB111BB15F4A00AED473 /* MJExampleViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAF21BB15F4A00AED473 /* MJExampleViewController.m */; };
 		2D9BEB121BB15F4A00AED473 /* MJExampleWindow.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAF41BB15F4A00AED473 /* MJExampleWindow.m */; };
-		2D9BEB131BB15F4A00AED473 /* MJNavigationController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAF61BB15F4A00AED473 /* MJNavigationController.m */; };
 		2D9BEB141BB15F4A00AED473 /* MJSingleViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAF81BB15F4A00AED473 /* MJSingleViewController.m */; };
 		2D9BEB151BB15F4A00AED473 /* MJTempViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAFA1BB15F4A00AED473 /* MJTempViewController.m */; };
 		2D9BEB161BB15F4A00AED473 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D9BEAFD1BB15F4A00AED473 /* AppDelegate.m */; };
@@ -169,8 +168,6 @@
 		2D9BEAF21BB15F4A00AED473 /* MJExampleViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MJExampleViewController.m; sourceTree = "<group>"; };
 		2D9BEAF31BB15F4A00AED473 /* MJExampleWindow.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MJExampleWindow.h; sourceTree = "<group>"; };
 		2D9BEAF41BB15F4A00AED473 /* MJExampleWindow.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MJExampleWindow.m; sourceTree = "<group>"; };
-		2D9BEAF51BB15F4A00AED473 /* MJNavigationController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MJNavigationController.h; sourceTree = "<group>"; };
-		2D9BEAF61BB15F4A00AED473 /* MJNavigationController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MJNavigationController.m; sourceTree = "<group>"; };
 		2D9BEAF71BB15F4A00AED473 /* MJSingleViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MJSingleViewController.h; sourceTree = "<group>"; };
 		2D9BEAF81BB15F4A00AED473 /* MJSingleViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MJSingleViewController.m; sourceTree = "<group>"; };
 		2D9BEAF91BB15F4A00AED473 /* MJTempViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MJTempViewController.h; sourceTree = "<group>"; };
@@ -328,8 +325,6 @@
 				2D9BEAF21BB15F4A00AED473 /* MJExampleViewController.m */,
 				2D9BEAF31BB15F4A00AED473 /* MJExampleWindow.h */,
 				2D9BEAF41BB15F4A00AED473 /* MJExampleWindow.m */,
-				2D9BEAF51BB15F4A00AED473 /* MJNavigationController.h */,
-				2D9BEAF61BB15F4A00AED473 /* MJNavigationController.m */,
 				2D9BEAF71BB15F4A00AED473 /* MJSingleViewController.h */,
 				2D9BEAF81BB15F4A00AED473 /* MJSingleViewController.m */,
 				2D9BEAF91BB15F4A00AED473 /* MJTempViewController.h */,
@@ -776,7 +771,6 @@
 				2D9BEB0A1BB15F4A00AED473 /* MJChiBaoZiFooter.m in Sources */,
 				2D9BEB121BB15F4A00AED473 /* MJExampleWindow.m in Sources */,
 				2DB2EA221BECBE6700D58F6A /* MJRefreshGifHeader.m in Sources */,
-				2D9BEB131BB15F4A00AED473 /* MJNavigationController.m in Sources */,
 				2DB2EA271BECBE6700D58F6A /* UIScrollView+MJExtension.m in Sources */,
 				2DB2EA1F1BECBE6700D58F6A /* MJRefreshBackGifFooter.m in Sources */,
 				0193FF132692E99500B52B11 /* I18NExampleViewController.swift in Sources */,

MJRefreshExample/Base.lproj/Main.storyboard

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="19115.3" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="06B-cM-i4B">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="19455" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="06B-cM-i4B">
     <device id="retina4_7" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="19107.5"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="19454"/>
         <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
@@ -84,7 +84,7 @@
         <!--Navigation Controller-->
         <scene sceneID="Gvt-ow-kGR">
             <objects>
-                <navigationController storyboardIdentifier="0" id="06B-cM-i4B" customClass="MJNavigationController" sceneMemberID="viewController">
+                <navigationController storyboardIdentifier="0" id="06B-cM-i4B" sceneMemberID="viewController">
                     <navigationBar key="navigationBar" contentMode="scaleToFill" id="Kj6-u7-ICR">
                         <rect key="frame" x="0.0" y="0.0" width="375" height="44"/>
                         <autoresizingMask key="autoresizingMask"/>
@@ -107,7 +107,7 @@
                         <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                         <prototypes>
                             <tableViewCell contentMode="scaleToFill" selectionStyle="default" indentationWidth="10" reuseIdentifier="example" textLabel="veW-N9-syp" detailTextLabel="Iv7-PA-lBt" style="IBUITableViewCellStyleSubtitle" id="xJS-7u-6pG">
-                                <rect key="frame" x="0.0" y="50" width="375" height="44"/>
+                                <rect key="frame" x="0.0" y="44.5" width="375" height="44"/>
                                 <autoresizingMask key="autoresizingMask"/>
                                 <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" tableViewCell="xJS-7u-6pG" id="rMg-IH-g5u">
                                     <rect key="frame" x="0.0" y="0.0" width="375" height="44"/>
@@ -186,4 +186,4 @@
             <color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
         </systemColor>
     </resources>
-</document>
+</document>

MJRefreshExample/Classes/First/MJNavigationController.h

@@ -1,13 +0,0 @@
-//  代码地址: https://github.com/CoderMJLee/MJRefresh
-//  MJNavigationController.h
-//  MJRefreshExample
-//
-//  Created by MJ Lee on 15/3/5.
-//  Copyright (c) 2015年 小码哥. All rights reserved.
-//
-
-#import <UIKit/UIKit.h>
-
-@interface MJNavigationController : UINavigationController
-
-@end

MJRefreshExample/Classes/First/MJNavigationController.m

@@ -1,25 +0,0 @@
-//  代码地址: https://github.com/CoderMJLee/MJRefresh
-//  MJNavigationController.m
-//  MJRefreshExample
-//
-//  Created by MJ Lee on 15/3/5.
-//  Copyright (c) 2015年 小码哥. All rights reserved.
-//
-
-#import "MJNavigationController.h"
-
-@implementation MJNavigationController
-
-#pragma mark 一个类只会调用一次
-+ (void)initialize
-{
-    // 1.取出设置主题的对象
-    UINavigationBar *navBar = [UINavigationBar appearanceWhenContainedInInstancesOfClasses:@[MJNavigationController.class]];
-    
-    // 2.设置导航栏的背景图片
-    [navBar setBackgroundImage:[UIImage imageNamed:@"NavBar64"] forBarMetrics:UIBarMetricsDefault];
-    
-    // 3.标题
-    [navBar setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor]}];
-}
-@end

MJRefreshExample/Classes/Other/AppDelegate.m

@@ -14,26 +14,13 @@ @interface AppDelegate ()
 
 @implementation AppDelegate
 
-
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     
+    [self setupNavigationBarAppearance];
+    
     return YES;
 }
 
-- (void)applicationWillResignActive:(UIApplication *)application {
-    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
-}
-
-- (void)applicationDidEnterBackground:(UIApplication *)application {
-    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-}
-
-- (void)applicationWillEnterForeground:(UIApplication *)application {
-    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
-}
-
 - (void)applicationDidBecomeActive:(UIApplication *)application {
     // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
     static dispatch_once_t onceToken;
@@ -42,8 +29,27 @@ - (void)applicationDidBecomeActive:(UIApplication *)application {
     });
 }
 
-- (void)applicationWillTerminate:(UIApplication *)application {
-    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+- (void)setupNavigationBarAppearance {
+    // 1.取出设置主题的对象
+    UINavigationBar *navBar = [UINavigationBar appearanceWhenContainedInInstancesOfClasses:@[UINavigationController.class]];
+    
+    // 2.设置导航栏的背景图片
+    UIImage *backgroundImage = [UIImage imageNamed:@"NavBar64"];
+    NSDictionary *titleTextAttributes = @{NSForegroundColorAttributeName : [UIColor whiteColor]};
+    
+    if (@available(iOS 13.0, *)) {
+        UINavigationBarAppearance *appearance = [UINavigationBarAppearance new];
+        appearance.backgroundImage = backgroundImage;
+        appearance.backgroundImageContentMode = UIViewContentModeScaleToFill;
+        appearance.titleTextAttributes = titleTextAttributes;
+        
+        navBar.scrollEdgeAppearance = appearance;
+        navBar.standardAppearance = appearance;
+    } else {
+        [[UINavigationBar appearance] setBackgroundImage:backgroundImage forBarMetrics:UIBarMetricsDefault];
+        // 3.标题
+        [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor]}];
+    }
 }
 
 @end