iOS笔记之四种拨号方式

方法一:不弹出提示直接拨打

NSMutableString *str=[[NSMutableStringalloc]initWithFormat:@"tel:%@",@"电话号码"];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

方法二:

会弹出提示

NSMutableString *str=[[NSMutableStringalloc]initWithFormat:@"tel:%@",@"电话号码"];

UIWebView *callWebview = [[UIWebViewalloc]init];

[callWebviewloadRequest:[NSURLRequestrequestWithURL:[NSURLURLWithString:str]]];

[self.view addSubview:callWebview];

方法三:

会弹出提示

NSMutableString* str=[[NSMutableString alloc]initWithFormat:@"telprompt://%@",@"111"];

[[UIApplication sharedApplication]openURL:[NSURL URLWithString:str]];

以上是正常的三种拨号方式,会有卡顿,网络上好多都是这种答案。

方案四之终极拨号方式:

NSMutableString *str=[[NSMutableString alloc]initWithFormat:@" [tel:%@]“,@“114”];

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:tel preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

}];

UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"呼叫" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
}];

// Add the actions.
[alertController addAction:cancelAction];
[alertController addAction:otherAction];

[self presentViewController:alertController animated:YES completion:nil];