UIScrollView *scrollView=[[UIScrollView alloc]init];
// scrollView.contentSize=CGSizeMake(, <#CGFloat height#>)
[scrollView setTranslatesAutoresizingMaskIntoConstraints:NO];
scrollView.backgroundColor=[UIColor clearColor];
[self.view addSubview:scrollView];
// CAGradientLayer *bgLayer = [AddClusterViewController greyGradient];
// bgLayer.frame = scrollView.bounds;
// [scrollView.layer insertSublayer:bgLayer atIndex:0];
//
NSLayoutConstraint *scrollViewLeft=[NSLayoutConstraint
constraintWithItem:scrollView attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:self.view attribute:
NSLayoutAttributeLeft multiplier:1.0 constant:0];
NSLayoutConstraint *scrollViewTop=[NSLayoutConstraint
constraintWithItem:scrollView attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:self.view attribute:
NSLayoutAttributeTop multiplier:1.0 constant:0];
NSLayoutConstraint *scrollViewHeight=[NSLayoutConstraint
constraintWithItem:scrollView attribute:NSLayoutAttributeHeight
relatedBy:NSLayoutRelationEqual toItem:self.view attribute:
NSLayoutAttributeHeight multiplier:1.0 constant:0];
NSLayoutConstraint *scrollViewWidth= [NSLayoutConstraint
constraintWithItem:scrollView
attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual
toItem:self.view attribute: NSLayoutAttributeWidth
multiplier:1.0
constant:0];
[self.view addConstraints:@[scrollViewTop,scrollViewLeft,scrollViewWidth,scrollViewHeight]];
UIView *inView=[[UIView alloc]init];
[inView setTranslatesAutoresizingMaskIntoConstraints:NO];
inView.backgroundColor=[UIColor clearColor];
self.clusterNameText=[[UITextField alloc]init];
self.clusterNameText.backgroundColor = [UIColor clearColor];
self.clusterNameText.textColor=[UIColor grayColor];
self.clusterNameText.borderStyle = UITextBorderStyleRoundedRect;
self.clusterNameText.layer.cornerRadius = 15;
self.clusterNameText.layer.borderColor=[[UIColor cyanColor]CGColor];
self.clusterNameText.delegate=self;
self.clusterNameText.layer.borderWidth=0.5;
[self.clusterNameText setTranslatesAutoresizingMaskIntoConstraints:NO];
self.clusterNameText.attributedPlaceholder =
[[NSAttributedString alloc] initWithString:@"Enter Cluster Name"
attributes:@{
NSForegroundColorAttributeName:[UIColor grayColor],
NSFontAttributeName : [UIFont fontWithName:@"Baskerville-Italic" size:17.0]
}
];
[inView addSubview:self.clusterNameText];
NSLayoutConstraint *clusterNameTextConstraintLeft=[NSLayoutConstraint constraintWithItem:self.clusterNameText attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:inView attribute:NSLayoutAttributeLeft multiplier:1.0 constant:10];
NSLayoutConstraint *clusterNameTextConstraintTop=[NSLayoutConstraint constraintWithItem:self.clusterNameText attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:inView attribute:NSLayoutAttributeTop multiplier:1.0 constant:100];
NSLayoutConstraint *clusterNameTextConstraintRight = [NSLayoutConstraint constraintWithItem:self.clusterNameText attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual toItem: inView attribute:NSLayoutAttributeRight multiplier:1.0f constant:-10];
[inView addConstraints:@[clusterNameTextConstraintLeft,clusterNameTextConstraintTop,clusterNameTextConstraintRight]];
//getting lastname
UILabel *settingLabel=[[UILabel alloc]init];
[settingLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
[inView addSubview:settingLabel];
// settingLabel.text=@"ANALYSIS REPORT NOTIFICATION";
settingLabel.attributedText= [[NSAttributedString alloc] initWithString:@"NOTIFICATION SETTING"
attributes:@{
NSForegroundColorAttributeName:[UIColor cyanColor],
NSFontAttributeName : [UIFont fontWithName:@"ChalkboardSE-Bold" size:17.0]
}
];
NSLayoutConstraint * settingLabelConstraintLeft = [NSLayoutConstraint
constraintWithItem: settingLabel attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:inView attribute:
NSLayoutAttributeLeft multiplier:1.0 constant:12];
NSLayoutConstraint * settingLabelConstraintTop= [NSLayoutConstraint
constraintWithItem: settingLabel attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:self.clusterNameText attribute:
NSLayoutAttributeBottom multiplier:1.0 constant:30];
NSLayoutConstraint * settingLabelConstraintWidth= [NSLayoutConstraint
constraintWithItem: settingLabel attribute:NSLayoutAttributeRight
relatedBy:NSLayoutRelationEqual toItem:inView attribute:
NSLayoutAttributeRight multiplier:1.0 constant:-10];
[inView addConstraints:@[settingLabelConstraintLeft,settingLabelConstraintTop,settingLabelConstraintWidth]];
UILabel *dailyLabel=[[UILabel alloc]init];
[dailyLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
[inView addSubview:dailyLabel];
dailyLabel.attributedText= [[NSAttributedString alloc] initWithString:@"Daily Report"
attributes:@{
NSForegroundColorAttributeName:[UIColor cyanColor],
NSFontAttributeName : [UIFont fontWithName:@"BradleyHandITCTT-Bold" size:17.0]
}
];
NSLayoutConstraint *dailyLabelConstraintLeft = [NSLayoutConstraint
constraintWithItem:dailyLabel attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:inView attribute:
NSLayoutAttributeLeft multiplier:1.0 constant:12];
NSLayoutConstraint *dailyLabelConstraintTop= [NSLayoutConstraint
constraintWithItem:dailyLabel attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:settingLabel attribute:
NSLayoutAttributeBottom multiplier:1.0 constant:30];
NSLayoutConstraint *dailyLabelConstraintWidth= [NSLayoutConstraint
constraintWithItem:dailyLabel attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual toItem:inView attribute:
NSLayoutAttributeWidth multiplier:0.5 constant:0];
[inView addConstraints:@[dailyLabelConstraintLeft,dailyLabelConstraintTop,dailyLabelConstraintWidth]];
self.dailySwitch = [[UISwitch alloc]init];
[self.dailySwitch setTranslatesAutoresizingMaskIntoConstraints:NO];
[inView addSubview:self.dailySwitch];
self.dailySwitch.onTintColor=[UIColor cyanColor];
self.dailySwitch.tintColor=[UIColor grayColor];
NSLayoutConstraint *dailySwitchConstraintLeft = [NSLayoutConstraint
constraintWithItem:self.dailySwitch attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:dailyLabel attribute:
NSLayoutAttributeRight multiplier:1.0 constant:0];
NSLayoutConstraint *dailySwitchConstraintTop= [NSLayoutConstraint
constraintWithItem:self.dailySwitch attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:settingLabel attribute:
NSLayoutAttributeBottom multiplier:1.0 constant:25];
[inView addConstraints:@[dailySwitchConstraintLeft,dailySwitchConstraintTop]];
[self.dailySwitch addTarget:self
action:@selector(stateChanged:) forControlEvents:UIControlEventValueChanged];
UILabel *weeklyLabel=[[UILabel alloc]init];
[weeklyLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
[inView addSubview:weeklyLabel];
weeklyLabel.attributedText= [[NSAttributedString alloc] initWithString:@"Weekly Report"
attributes:@{
NSForegroundColorAttributeName:[UIColor cyanColor],
NSFontAttributeName : [UIFont fontWithName:@"BradleyHandITCTT-Bold" size:17.0]
}
];
NSLayoutConstraint *weeklyLabelConstraintLeft = [NSLayoutConstraint
constraintWithItem:weeklyLabel attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:inView attribute:
NSLayoutAttributeLeft multiplier:1.0 constant:12];
NSLayoutConstraint *weeklyLabelConstraintTop= [NSLayoutConstraint
constraintWithItem:weeklyLabel attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:dailyLabel attribute:
NSLayoutAttributeBottom multiplier:1.0 constant:36];
NSLayoutConstraint *weeklyLabelConstraintWidth= [NSLayoutConstraint
constraintWithItem:weeklyLabel attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual toItem:inView attribute:
NSLayoutAttributeWidth multiplier:0.5 constant:0];
[inView addConstraints:@[weeklyLabelConstraintLeft,weeklyLabelConstraintTop,weeklyLabelConstraintWidth]];
self.weeklySwitch = [[UISwitch alloc]init];
[self.weeklySwitch setTranslatesAutoresizingMaskIntoConstraints:NO];
[inView addSubview:self.weeklySwitch];
self.weeklySwitch.onTintColor=[UIColor cyanColor];
self.weeklySwitch.tintColor=[UIColor grayColor];
NSLayoutConstraint *weeklySwitchConstraintLeft = [NSLayoutConstraint
constraintWithItem:self.weeklySwitch attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:weeklyLabel attribute:
NSLayoutAttributeRight multiplier:1.0 constant:0];
NSLayoutConstraint *weeklySwitchConstraintTop= [NSLayoutConstraint
constraintWithItem:self.weeklySwitch attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:self.dailySwitch attribute:
NSLayoutAttributeBottom multiplier:1.0 constant:25];
[inView addConstraints:@[weeklySwitchConstraintLeft,weeklySwitchConstraintTop]];
[self.weeklySwitch addTarget:self
action:@selector(stateChanged1:) forControlEvents:UIControlEventValueChanged];
myPickerView = [[UIPickerView alloc]init];
myPickerView.dataSource = self;
myPickerView.delegate = self;
myPickerView.showsSelectionIndicator = YES;
[myPickerView setBackgroundColor:[UIColor blackColor]];
self.countryNameText=[[UITextField alloc]init];
self.countryNameText.backgroundColor = [UIColor clearColor];
self.countryNameText.textColor=[UIColor grayColor];
self.countryNameText.borderStyle = UITextBorderStyleRoundedRect;
self.countryNameText.layer.cornerRadius = 15;
self.countryNameText.layer.borderColor=[[UIColor cyanColor]CGColor];
self.countryNameText.layer.borderWidth=0.5;
[self.countryNameText setTranslatesAutoresizingMaskIntoConstraints:NO];
self.countryNameText.inputView=myPickerView;
self.countryNameText.delegate=self;
self.countryNameText.userInteractionEnabled=YES;
self.countryNameText.attributedPlaceholder =
[[NSAttributedString alloc] initWithString:@"Choose Country"
attributes:@{
NSForegroundColorAttributeName:[UIColor grayColor],
NSFontAttributeName : [UIFont fontWithName:@"Baskerville-Italic" size:17.0]
}
];
[inView addSubview:self.countryNameText];
NSLayoutConstraint *countryNameTextConstraintLeft=[NSLayoutConstraint constraintWithItem:self.countryNameText attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:inView attribute:NSLayoutAttributeLeft multiplier:1.0 constant:10];
NSLayoutConstraint *countryNameTextConstraintTop=[NSLayoutConstraint constraintWithItem:self.countryNameText attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:weeklyLabel attribute:NSLayoutAttributeBottom multiplier:1.0 constant:30];
NSLayoutConstraint *countryNameTextConstraintRight = [NSLayoutConstraint constraintWithItem:self.countryNameText attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual toItem: inView attribute:NSLayoutAttributeRight multiplier:1.0f constant:-10];
[inView addConstraints:@[countryNameTextConstraintLeft,countryNameTextConstraintTop,countryNameTextConstraintRight]];
[scrollView addSubview:inView];
NSLayoutConstraint *inViewLeft=[NSLayoutConstraint
constraintWithItem:inView attribute:NSLayoutAttributeLeft
relatedBy:NSLayoutRelationEqual toItem:scrollView attribute:
NSLayoutAttributeLeft multiplier:1.0 constant:0];
NSLayoutConstraint *inViewTop=[NSLayoutConstraint
constraintWithItem:inView attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual toItem:scrollView attribute:
NSLayoutAttributeTop multiplier:1.0 constant:0];
NSLayoutConstraint *inViewBottom=[NSLayoutConstraint
constraintWithItem:inView attribute:NSLayoutAttributeBottom
relatedBy:NSLayoutRelationEqual toItem:self.countryNameText attribute:
NSLayoutAttributeBottom multiplier:1.0 constant:20];
NSLayoutConstraint *inViewWidth= [NSLayoutConstraint
constraintWithItem:inView
attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual
toItem:scrollView attribute: NSLayoutAttributeWidth
multiplier:1.0
constant:0];
[scrollView addConstraints:@[inViewTop,inViewLeft,inViewWidth,inViewBottom]];
[scrollView setContentSize:CGSizeMake(self.view.frame.size.width,self.view.frame.size.height*2)];
这是我的滚动视图...我是新的ios ..现在我不想明确给出滚动视图的内容大小..我的要求是根据内容动态更改textview大小滚动视图也必须改变..如何做...或者请在自动布局上推荐一些关于滚动视图的好教程。我不使用故事板，我需要以编程方式提供所有内容....任何帮助将不胜感激...谢谢提前
2017-04-06 12：56：54.030 AppAdvisor [5899：325423] inView height 0.000000 inView width 0.000000 2017-04-06 12：56：54.030 AppAdvisor [5899：325423]滚动高度0.000000滚动宽度0.000000 2017-04-06 12：56：54.030 AppAdvisor [5899：325423]内容高度1704.000000内容宽度320.000000