iOS跳转到拨号界面,怎么实现?

1.跳转到拨号界面,并不是直接拨打电话!!!

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app单例调用openUrl

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试试这个：

NSString *telNumber = [NSString stringWithFormat:@"tel:%@", @"88888888"];
NSURL *aURL = [NSURL URLWithString:telNumber];
if ([[UIApplication sharedApplication] canOpenURL:aURL]) {
    [[UIApplication sharedApplication] openURL:aURL];
}