iOS APP切换网络环境

需求描述：

打一次包，用户可以自由切换开发和生产环境

实现原理

每一个app在设置界面可以增加配置选项，存的数据可以通过user default读取，根据存储的数据来甄别切换网络

实现步骤

• 新增setting bundle

root.plist source code 如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>StringsTable</key>
	<string>Root</string>
	<key>PreferenceSpecifiers</key>
	<array>
		<dict>
			<key>Type</key>
			<string>PSMultiValueSpecifier</string>
			<key>Title</key>
			<string>环境</string>
			<key>Key</key>
			<string>env_key</string>
			<key>DefaultValue</key>
			<string>1</string>
			<key>Titles</key>
			<array>
				<string>DEV</string>
				<string>TEST</string>
				<string>PROD</string>
				<string>SAAS</string>
			</array>
			<key>Values</key>
			<array>
				<string>1</string>
				<string>2</string>
				<string>3</string>
				<string>4</string>
			</array>
		</dict>
	</array>
</dict>
</plist>

效果：

• 代码获取值

  - (void)registerDefaultsFromSettingsBundle{
      NSString *settingsBundle = [[NSBundle mainBundle] pathForResource:@"Settings" ofType:@"bundle"];
  
      if(!settingsBundle) {
          NSLog(@"Could not find Settings.bundle");
          return;
      }
  
      NSDictionary *settings = [NSDictionary dictionaryWithContentsOfFile:[settingsBundle stringByAppendingPathComponent:@"Root.plist"]];
  
      NSArray *preferences = [settings objectForKey:@"PreferenceSpecifiers"];
  
      NSMutableDictionary *defaultsToRegister = [[NSMutableDictionary alloc] initWithCapacity:[preferences count]];
  
      for(NSDictionary *prefSpecification in preferences) {
          NSString *key = [prefSpecification objectForKey:@"Key"];
  
           if(key) {
              [defaultsToRegister setObject:[prefSpecification objectForKey:@"DefaultValue"] forKey:key];
          }
  
      }
  
      [[NSUserDefaults standardUserDefaults] registerDefaults:defaultsToRegister];
  }
  
  
  -(NSString *)getNetworkOption{
  #if DEBUG
      id obj = [[NSUserDefaults standardUserDefaults] objectForKey:@"env_key"];
      if ([obj isKindOfClass:[NSString class]]) {
          return (NSString *)obj;
      }
      return @"";
  
  #else
      return @"";
  
  #endif
      
  }

• 设置release状态不包含bundle文件

  Xcode—->Project—->Build Settings—->Build Options—->Exclude Source Files Names—->Release 把文件拖进去

完。

参考：https://blog.csdn.net/nogodoss/article/details/21938771