我试图使用以下语句来获取宽度.
alertPicker.vIEw.frame.size.wIDth
但是,宽度与vIEwController的宽度相同:
self.vIEw.frame.size.wIDth
有没有想过获得UIAlertController的宽度?非常感谢.
这是我的代码.
UIAlertController *alertPicker = [UIAlertController alertControllerWithTitle:nil message:@"\n\n\n\n\n\n\n\n\n\n\n\n" preferredStyle:UIAlertControllerStyleActionSheet]; CGRect pickerFrame = CGRectMake(8,alertPicker.vIEw.frame.size.wIDth,self.vIEw.frame.size.height/2); UIPickerVIEw *pickerVIEw = [[UIPickerVIEw alloc] initWithFrame:pickerFrame]; pickerVIEw.showsSelectionIndicator = YES; pickerVIEw.dataSource = self; pickerVIEw.delegate = self; UIToolbar* pickerToolbar = [[UIToolbar alloc] initWithFrame: CGRectMake(2,44)]; UIbarbuttonItem *doneBtn = [[UIbarbuttonItem alloc] initWithTitle:@"Done" style:UIbarbuttonItemStylePlain target:self action:@selector(doneBtnisClicked:)]; UIbarbuttonItem *flexSpace = [[UIbarbuttonItem alloc] initWithbarbuttonSystemItem:UIbarbuttonSystemItemFlexibleSpace target:nil action:nil]; pickerToolbar.items = [[NSArray alloc] initWithObjects:flexSpace,doneBtn,nil]; [alertPicker.vIEw addSubvIEw:pickerToolbar]; [alertPicker.vIEw addSubvIEw:pickerVIEw];解决方法 UIAlertController继承自UIVIEwController,因此您可以获得UIAlertController的UIVIEw的大小并获得宽度. 总结
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