iOS10.3添加更改APP图标方法

info.plist文件添加字段。可添加多个待替换图标，需要确保对应key值与value值均为图标名称，并将图标拖进工程。最后一个value值为图标大小，低型号会自动压缩展示

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需要实现的代码：

- (void)changeIconWithIconName:(NSString *)iconName{

BOOLresult = [UIApplicationsharedApplication].supportsAlternateIcons;

if(result) {

NSLog(@"you can change this APP's icon");

}else{

NSLog(@"you can't change this APP's icon");

return;

}

NSString*name = [UIApplicationsharedApplication].alternateIconName;

if([nameisEqualToString:iconName]) {

return;

}else{

[[UIApplicationsharedApplication]setAlternateIconName:iconNamecompletionHandler:^(NSError*_Nullableerror) {

NSLog(@"%@",error);

}];

}

}

第一次写，代码格式很烦啊。