UIAlertController的使用

UIAlertController代替UIAlertView和UIActionSheet的使用

效果图

UIAlertController

使用注意：

• UIAlertControllerStyleAlert实现UIAlertView功能

• UIAlertControllerStyleActionSheet实现UIActionSheet功能

实例化

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"标题" message:@"内容" preferredStyle:UIAlertControllerStyleAlert];

添加文本框

[alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
            textField.placeholder = @"网络名称";
            textField.clearButtonMode = UITextFieldViewModeWhileEditing;
}];

添加按钮

取消按钮

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

}];

[alertController addAction:cancelAction];

确定按钮

UIAlertAction *confirmAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            UITextField *textfield = alertController.textFields.firstObject;
}];

[alertController addAction:confirmAction];

显示

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