iOS 10撥打系統電話發現彈出框會延遲2s左右出現，很不爽，研究了一下，發現是openURL在ios 10及其之后會阻塞主線程
所以，撥打電話前，做個判斷，來代碼,
方案一：
// 撥打電話
+ (void)callPhone:(NSString *)phoneNum {
if (phoneNum.length == 0) {
return;
}
NSString *callPhone = [NSString stringWithFormat:@"telprompt://%@", phoneNum];
NSComparisonResult compare = [[UIDevice currentDevice].systemVersion compare:@"10.0"];
if (compare == NSOrderedDescending || compare == NSOrderedSame) {
/// 大于等于10.0系統使用此openURL方法
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone] options:@{} completionHandler:nil];
} else {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone]];
}
}
方案二
// 撥打電話
+ (void)callPhone:(NSString *)phoneNum {
if (phoneNum.length == 0) {
return;
}
NSString *callPhone = [NSString stringWithFormat:@"telprompt://%@", phoneNum];
dispatch_async(dispatch_get_global_queue(0, 0), ^{
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone]];
});
}
關于撥打電話的方法，自己憑喜好選擇，導致彈出框延遲的原因，目前初步診斷就是openURL在iOS 10及其之后會阻塞主線程
