韩国韩荣部品株式会社,杨益平,78能去海山吗
当我们在uitextfield输入数据时经常弹出键盘遮挡界面，解决方法是：在弹出键盘时将整个uiview向上移动，在键盘消失时，uiview还原。
实例代码如下：
我要评论
@interface viewcontroller ()<uitextfielddelegate>
@property(nonatomic,strong)uitextfield* tf;
@end
@implementation viewcontroller
- (void)viewdidload {
[super viewdidload];
self.tf = [[uitextfield alloc]initwithframe:cgrectmake(10, 600, 100, 20)];
self.tf.delegate = self;
self.tf.backgroundcolor = [uicolor blackcolor];
[self.view addsubview:self.tf];
}
#pragma mark life circle
-(void)viewwillappear:(bool)animated{
[super viewwillappear:animated];
//后台切换到前台通知
[[nsnotificationcenter defaultcenter] addobserver:self selector:@selector(applicationwillenterforeground)name:uiapplicationwillenterforegroundnotification object:nil];
[[nsnotificationcenter defaultcenter] addobserver:self
selector:@selector(keyboardwillhide:)
name:uikeyboardwillhidenotification
object:nil];
[self.view endediting:yes];
}
- (void)applicationwillenterforeground{
[self.view endediting:yes];
}
-(void)touchesended:(nsset<uitouch *> *)touches withevent:(uievent *)event{
[self.view endediting:yes];
}
#pragma mark uitextfielddelegate
-(void)textfielddidbeginediting:(uitextfield *)textfield{
//第一个cell不往上弹输入框的位置
// if(indexpath.row!=0){
[[nsnotificationcenter defaultcenter] addobserver:self selector:@selector(keyboardwillchange:) name:uikeyboardwillchangeframenotification object:nil];
// }
}
-(void)textfielddidendediting:(uitextfield *)textfield{
}
#pragma mark 键盘操作
- (void)keyboardwillchange:(nsnotification *)note
{
nsdictionary *userinfo = note.userinfo;
cgfloat duration = [userinfo[@"uikeyboardanimationdurationuserinfokey"] doublevalue];
cgrect keyframe = [userinfo[@"uikeyboardframeenduserinfokey"] cgrectvalue];
//这个64是我减去的navigationbar加上状态栏20的高度,可以看自己的实际情况决定是否减去;
cgfloat movey = keyframe.origin.y -self.tf.frame.origin.y-self.tf.frame.size.height;
nslog(@"%f",movey);
[uiview animatewithduration:duration animations:^{
self.view.transform = cgaffinetransformmaketranslation(0, movey);
}];
}
- (void)keyboardwillhide:(nsnotification *)nsnotification
{
[[nsnotificationcenter defaultcenter]removeobserver:self name:uikeyboardwillchangeframenotification object:nil];
[uiview animatewithduration:0.2 animations:^{
self.view.transform = cgaffinetransformmaketranslation(0, 0);
}];
}
@end
以上这篇ios 防键盘遮挡的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持移动技术网。
如对本文有疑问，请在下面进行留言讨论，广大热心网友会与你互动！！ 点击进行留言回复
网友评论