Scheme 配置
在其他应用里就可以用以下语句启动你的app
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"BProject://"]];```
当然你也可以
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"AProject://"]];```
在自定义了 URL scheme 的应用中,app delegate 必须实现以下方法:
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation```
例如,假设我们使用以下的 URL scheme,我们可以像这样创建一个 URL:
NSString *customURL = @"BProject://?action=play&data=12345";
在 web 开发中,字符串 ?action=play&data=12345 被称作查询询串(query string)。
在被调用(设置了自定义 URL)的应用的 app delegate 中,获取参数的代码如下:
-
(BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation
{
NSLog(@"Calling Application Bundle ID: %@", sourceApplication);
NSLog(@"URL scheme:%@", [url scheme]);
NSLog(@"URL query: %@", [url query]);return YES;
}```
以上代码在应用被调用时的输出为:
Calling Application Bundle ID: com.hunantv.app
URL scheme:BProject
URL query: action=play&data=12345
额外功能
如果你想启动一个页面那么,此时要考虑你的应用是否已经启动,可以如下判断使用:
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{
NSString *handleUrl = [url absoluteString];
if ([handleUrl isEqualToString:@"BProject://callsuccess"]) {
return YES;
}else{
UINavigationController *vc = (UINavigationController *)_window.rootViewController;
if (vc == nil) {
PathViewController *controller = [[PathViewController alloc] initWithNibName:@"PathViewController" bundle:nil];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.mUINavigationController = [[UINavigationController alloc] init];
[self.mUINavigationController pushViewController:controller animated:YES];
[self.window addSubview:self.mUINavigationController.view];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
}
return YES;
}
}```
也就是把appdelegate里面的didFinishLaunchingWithOptions初始化app的代码拷贝进去。此时会启动PathViewController这个页面。然后在这个页面里面可以添加一个返回按钮来返回到调用APP。
再次 在TestAAPp里面使用URl Scheme调起你的APP
-
(void)buttonPressed:(UIButton *)button
{
NSString *customURL = @"BProject://play/12345";if ([[UIApplication sharedApplication]
canOpenURL:[NSURL URLWithString:customURL]])
{
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:customURL]];
}
else
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"URL error"
message:[NSString stringWithFormat:
@"No custom URL defined for %@", customURL]
delegate:self cancelButtonTitle:@"Ok"
otherButtonTitles:nil];
[alert show];
}
}```
注意
如果你是iOS9系统,由于iOS9为了安全提出了白名单概念,你必须在TestAAPp的info.plist里面配置以下信息
白名单上限只有50个。