iOS_ScrollView的自己主动布局

ScrollView的自己主动布局稍显麻烦。但也是有规律可循，

下面就是仅竖向滑动的scrollView加入约束的固定做法

1.在控制器的view加入一个label。取名做anchor

2.给anchor加入约束：距上右下左全是0 （表示anchor与控制器的view等大）

3.加入一个scrollView

4.给scrollView相同加入约束：距上右下左全是0（表示scrollView也与控制器的view等大）

到此，scrollView还差两个关键约束（此2个约束决定水平和竖直方向的滚动范围）

5.在scrollView中加入一个label。取名叫bg1（通过该label就能够直接确定scrollView的滚动范围）

6.给bg1加入约束，bg1 距上右左 全为0；高度固定为35

下面就是关键点来了：

同一时候选中anchor和bg1，让它们等宽equal width；

（注：目的是让scrollView的水平滚动范围刚好与屏幕宽同样，即水平方向不可滚动）

bg1距下999

（注：目的是确定scrollView的竖向滚动范围，此值能够随意调整，此约束也能够加在随意一个scrollView中的最下方的一个子元素身上）

===========新增重要更新===================

怎样让xib生成的scrollView：即便内容非常少非常短，也能在不同的屏幕上滚动

比如：scrollView里面最下方的是一个btn。

则在xib时，btn距离下方scrollView为：推荐值+1个像素，

推荐值计算式例如以下：

         scrollView的高度-getMaxY(btn.frame)

而且：（最重要的是）将该约束constraint连线成为：iboutlet，

最后在控制器viewDidLoad中，

依据不同的屏幕高度重置该约束constraint的constant值为：
推荐值+1个像素。就可以解决！！！

=====================10 13更新Start==========================

原则就是:contentSize中的height要比scrollView的高度大1个点


演示样例：
scrollview上面有一个button,距离顶10，左10。中间是一个非常大的空白；底部是一个bottomLabel；底部bottomLabel距离下方scrollview10
先连上要用到的控件：
scrollView、topBtn、bottomLabel、还有dynamicVConstraint（底标签距topBtn的动态距离，随手机高度动态变化）


開始上代码：

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    


    // 默认xib中 随便设置67
    CGFloat vconstant = (self.scrooView.height - CGRectGetMaxY(self.xib_rightBtn.frame) - self.xib_bottomLabel.height -10)+1;
    DLog(@"vconstant__%f",vconstant);
// 有可能出现负数，取MAX(vconstant,1或oldValue)
    self.dynamicVConstraint.constant = vconstant;
    
    
    [self.view setNeedsLayout];
    [self.view layoutIfNeeded];
    
}

=====================10 13更新End==========================

- (void)diy_scrollView
{
    // scrollView的高度-getMaxY(btn.frame)+1
    // 注：value也有可能是负数，如：（当scrollView的contentSize大于其height时）
    CGFloat value = _scrollView.height - CGRectGetMaxY(_xib_lastLabel.frame)  + 1;
    // xib上的最底部的view距离 scrollView的一般为1
    CGFloat oldConstant = _constraint_lastLabel_V_bottom.constant;

    _constraint_lastLabel_V_bottom.constant = MAX(value, oldConstant);
    [self.view layoutIfNeeded];
}

===========以下是：xib界面=================

如有不明确的地方能够在下方提出

==========================新增顶部固定宽高比的imgView===============================================

目的：保持顶部大图 2：1的宽高比

先aspect fill+clip subviews,并手动设置图片为宽320，高160

再開始加入约束：距离左上右0，并勾选aspect ratio就可以

======================以下是BeyondCtrl.xib模板代码================

该模板在使用时。仅需更改 customClass="BeyondCtrl"为目标控制器名称就可以使用

<?
xml version="1.0" encoding="UTF-8" standalone="no"?
>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7706" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
    </dependencies>
    <objects>
        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="BeyondCtrl">
            <connections>
                <outlet property="view" destination="i5M-Pr-FkT" id="sfx-zR-JGt"/>
            </connections>
        </placeholder>
        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
        <view clearsContextBeforeDrawing="NO" contentMode="scaleToFill" id="i5M-Pr-FkT">
            <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
            <subviews>
                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="qgo-zY-zlk" userLabel="anchor">
                    <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                    <nil key="highlightedColor"/>
                </label>
                <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="trS-aa-5Y1" userLabel="scrollView">
                    <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
                    <subviews>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="klg-gx-6SQ" userLabel="bg_1">
                            <rect key="frame" x="0.0" y="0.0" width="320" height="10"/>
                            <color key="backgroundColor" red="1" green="0.78895520959999998" blue="0.14824080179999999" alpha="1" colorSpace="calibratedRGB"/>
                            <constraints>
                                <constraint firstAttribute="height" constant="10" id="957-kf-gZC"/>
                            </constraints>
                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
                            <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                            <nil key="highlightedColor"/>
                        </label>
                    </subviews>
                    <constraints>
                        <constraint firstItem="klg-gx-6SQ" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" id="4ib-Ge-5re"/>
                        <constraint firstAttribute="bottom" secondItem="klg-gx-6SQ" secondAttribute="bottom" constant="990" id="K63-zG-xhs"/>
                        <constraint firstAttribute="trailing" secondItem="klg-gx-6SQ" secondAttribute="trailing" id="VXs-dc-6sE"/>
                        <constraint firstItem="klg-gx-6SQ" firstAttribute="top" secondItem="trS-aa-5Y1" secondAttribute="top" id="nXy-dY-Pjo"/>
                    </constraints>
                </scrollView>
            </subviews>
            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
            <constraints>
                <constraint firstAttribute="trailing" secondItem="qgo-zY-zlk" secondAttribute="trailing" id="7g9-JP-7u3"/>
                <constraint firstAttribute="trailing" secondItem="trS-aa-5Y1" secondAttribute="trailing" id="7mq-nm-RX2"/>
                <constraint firstItem="trS-aa-5Y1" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="DQT-lq-HsE"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="Egw-Tf-Zad"/>
                <constraint firstAttribute="bottom" secondItem="qgo-zY-zlk" secondAttribute="bottom" id="FZN-U0-yPY"/>
                <constraint firstAttribute="bottom" secondItem="trS-aa-5Y1" secondAttribute="bottom" id="U1y-5T-guj"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="width" secondItem="klg-gx-6SQ" secondAttribute="width" id="ey8-H5-mSu"/>
                <constraint firstItem="trS-aa-5Y1" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="ndZ-fs-HcT"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="u6f-bB-I4B"/>
            </constraints>
            <nil key="simulatedStatusBarMetrics"/>
            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
        </view>
    </objects>
</document>

模板一：纯自己主动布局的带弹簧效果

//
//  BeyondCtrl.h
//  KnowingLife
//
//  Created by beyond on 15/8/7.
//  Copyright (c) 2015年 beyond.com All rights reserved.
//  专用于：自己主动布局的scrollView的弹簧效果
//  重点是：lastView（其y是自己主动计算的），其下方一段动态的VMargin(距离scrollView底部)

#import <UIKit/UIKit.h>

@interface BeyondCtrl : UIViewController

// 要设置contentSize的height 等于 其height + 1
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;

// 贴底的button上方是一个UIView
@property (weak, nonatomic) IBOutlet UIView *lastView;

// 一段动态的VMargin 距离 底部scrollView
@property (weak, nonatomic) IBOutlet NSLayoutConstraint *dynamicVConstraint;



@end

//
//  BeyondCtrl.m
//  KnowingLife
//
//  Created by beyond on 15/8/7.
//  Copyright (c) 2015年 beyond.com All rights reserved.
//

#import "BeyondCtrl.h"
#import "UIView+Frame.h"
@interface BeyondCtrl ()

@end

@implementation BeyondCtrl
#pragma mark - 动态调整 button上方的这段空白距离
- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    
    // 要设置contentSize的height 等于 其height + 1
    CGFloat vconstant = self.scrollView.height - CGRectGetMaxY(self.lastView.frame) +1;
    // 结果有可能为负数，取MAX(vconstant,1)
    DLog(@"vconstant__%f",vconstant);
    self.dynamicVConstraint.constant = vconstant;
        
    [self.view setNeedsLayout];
    [self.view layoutIfNeeded];
    
}
- (void)viewDidLoad {
    [super viewDidLoad];

}



@end

<?xml version="1.0" encoding="UTF-8" standalone="no"?
>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7706" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
    </dependencies>
    <objects>
        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="BeyondCtrl">
            <connections>
                <outlet property="dynamicVConstraint" destination="rla-bt-Q6i" id="7aV-mT-s98"/>
                <outlet property="lastView" destination="DCQ-uR-7cN" id="RK2-pg-hhA"/>
                <outlet property="scrollView" destination="trS-aa-5Y1" id="qpi-pB-wne"/>
                <outlet property="view" destination="i5M-Pr-FkT" id="sfx-zR-JGt"/>
            </connections>
        </placeholder>
        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
        <view clearsContextBeforeDrawing="NO" contentMode="scaleToFill" id="i5M-Pr-FkT">
            <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
            <subviews>
                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="qgo-zY-zlk" userLabel="anchor">
                    <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                    <nil key="highlightedColor"/>
                </label>
                <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="trS-aa-5Y1" userLabel="scrollView">
                    <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
                    <subviews>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="klg-gx-6SQ" userLabel="bg_1">
                            <rect key="frame" x="0.0" y="0.0" width="320" height="20"/>
                            <color key="backgroundColor" red="1" green="0.78895520959999998" blue="0.14824080179999999" alpha="1" colorSpace="calibratedRGB"/>
                            <constraints>
                                <constraint firstAttribute="height" constant="20" id="957-kf-gZC"/>
                            </constraints>
                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
                            <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                            <nil key="highlightedColor"/>
                        </label>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="《我们仍未知道那天所看见的花的名字》" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="sa0-AD-kQm" userLabel="title">
                            <rect key="frame" x="10" y="30" width="300" height="53"/>
                            <fontDescription key="fontDescription" type="system" pointSize="22"/>
                            <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                            <nil key="highlightedColor"/>
                        </label>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="DCQ-uR-7cN" userLabel="aboveBottomBtn">
                            <rect key="frame" x="10" y="93" width="300" height="163"/>
                            <string key="text">        在我们走过的季节里。路旁盛开的花朵也在不断变化，那个季节盛开的花是叫什么来着？轻轻摇曳着，一碰会微微刺痛，靠近一闻，隐约有股青涩的阳光的气息。那气息渐渐地淡去，我们也在慢慢长大。
但是。那朵花一定还在某个地方盛开着……对，我们永远都会继续实现那朵花的愿望。</string>
                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
                            <color key="textColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                            <nil key="highlightedColor"/>
                        </label>
                    </subviews>
                    <constraints>
                        <constraint firstItem="klg-gx-6SQ" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" id="4ib-Ge-5re"/>
                        <constraint firstAttribute="trailing" secondItem="sa0-AD-kQm" secondAttribute="trailing" constant="10" id="5hV-GO-DHI"/>
                        <constraint firstItem="DCQ-uR-7cN" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" constant="10" id="MzR-eI-wQH"/>
                        <constraint firstAttribute="trailing" secondItem="DCQ-uR-7cN" secondAttribute="trailing" constant="10" id="OlQ-hF-YOE"/>
                        <constraint firstItem="sa0-AD-kQm" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" constant="10" id="Ov5-hC-0YJ"/>
                        <constraint firstAttribute="trailing" secondItem="klg-gx-6SQ" secondAttribute="trailing" id="VXs-dc-6sE"/>
                        <constraint firstItem="klg-gx-6SQ" firstAttribute="top" secondItem="trS-aa-5Y1" secondAttribute="top" id="nXy-dY-Pjo"/>
                        <constraint firstAttribute="bottom" secondItem="DCQ-uR-7cN" secondAttribute="bottom" constant="744" id="rla-bt-Q6i"/>
                        <constraint firstItem="DCQ-uR-7cN" firstAttribute="top" secondItem="sa0-AD-kQm" secondAttribute="bottom" constant="10" id="wJe-px-BJF"/>
                        <constraint firstItem="sa0-AD-kQm" firstAttribute="top" secondItem="klg-gx-6SQ" secondAttribute="bottom" constant="10" id="xgH-xa-og8"/>
                    </constraints>
                </scrollView>
            </subviews>
            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
            <constraints>
                <constraint firstAttribute="trailing" secondItem="qgo-zY-zlk" secondAttribute="trailing" id="7g9-JP-7u3"/>
                <constraint firstAttribute="trailing" secondItem="trS-aa-5Y1" secondAttribute="trailing" id="7mq-nm-RX2"/>
                <constraint firstItem="trS-aa-5Y1" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="DQT-lq-HsE"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="Egw-Tf-Zad"/>
                <constraint firstAttribute="bottom" secondItem="qgo-zY-zlk" secondAttribute="bottom" id="FZN-U0-yPY"/>
                <constraint firstAttribute="bottom" secondItem="trS-aa-5Y1" secondAttribute="bottom" id="U1y-5T-guj"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="width" secondItem="klg-gx-6SQ" secondAttribute="width" id="ey8-H5-mSu"/>
                <constraint firstItem="trS-aa-5Y1" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="ndZ-fs-HcT"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="u6f-bB-I4B"/>
            </constraints>
            <nil key="simulatedStatusBarMetrics"/>
            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
        </view>
    </objects>
</document>

模板二：底部固定一个button，带弹簧效果

//
//  BeyondCtrl.h
//  KnowingLife
//
//  Created by beyond on 15/8/7.
//  Copyright (c) 2015年 beyond.com All rights reserved.
//  专用于：不满一个屏幕内容的。弹簧效果
//  重点是：一个贴底的button，其上方一段动态的VMargin，其上方是一个UIView（是自己主动计算的）

#import <UIKit/UIKit.h>

@interface BeyondCtrlBottom : UIViewController

// 要设置contentSize的height 等于 其height + 1
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;

// 贴底的button上方是一个UIView
@property (weak, nonatomic) IBOutlet UIView *aboveBottomBtn;

// 贴底的button上方的 一段动态的VMargin
@property (weak, nonatomic) IBOutlet NSLayoutConstraint *dynamicVConstraint;

// 一个贴底的button
@property (weak, nonatomic) IBOutlet UIButton *bottomBtn;

@end

//
//  BeyondCtrl.m
//  KnowingLife
//
//  Created by beyond on 15/8/7.
//  Copyright (c) 2015年 beyond.com All rights reserved.
//

#import "BeyondCtrlBottom.h"
#import "UIView+Frame.h"
@interface BeyondCtrlBottom ()

@end

@implementation BeyondCtrlBottom
#pragma mark - 动态调整 button上方的这段空白距离
- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    
    // 10 是由于贴底的button 跟scrollView底部相距10
    CGFloat vconstant = (self.scrollView.height - CGRectGetMaxY(self.aboveBottomBtn.frame) - self.bottomBtn.height -10)+1;
    // 结果有可能为负数，取MAX(vconstaint,1)
    DLog(@"vconstant__%f",vconstant);
    self.dynamicVConstraint.constant = vconstant;
        
    [self.view setNeedsLayout];
    [self.view layoutIfNeeded];
    
}
- (void)viewDidLoad {
    [super viewDidLoad];
    
}


@end

<?xml version="1.0" encoding="UTF-8" standalone="no"?
>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7706" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
    </dependencies>
    <objects>
        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="BeyondCtrlBottom">
            <connections>
                <outlet property="aboveBottomBtn" destination="DCQ-uR-7cN" id="OlC-WV-3ic"/>
                <outlet property="bottomBtn" destination="8Yn-es-0DL" id="k9h-KC-M8K"/>
                <outlet property="dynamicVConstraint" destination="Bqm-NR-8A8" id="WT2-V9-AFX"/>
                <outlet property="scrollView" destination="trS-aa-5Y1" id="qpi-pB-wne"/>
                <outlet property="view" destination="i5M-Pr-FkT" id="sfx-zR-JGt"/>
            </connections>
        </placeholder>
        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
        <view clearsContextBeforeDrawing="NO" contentMode="scaleToFill" id="i5M-Pr-FkT">
            <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
            <subviews>
                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="qgo-zY-zlk" userLabel="anchor">
                    <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                    <nil key="highlightedColor"/>
                </label>
                <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="trS-aa-5Y1" userLabel="scrollView">
                    <rect key="frame" x="0.0" y="0.0" width="320" height="1000"/>
                    <subviews>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="klg-gx-6SQ" userLabel="bg_1">
                            <rect key="frame" x="0.0" y="0.0" width="320" height="20"/>
                            <color key="backgroundColor" red="1" green="0.78895520959999998" blue="0.14824080179999999" alpha="1" colorSpace="calibratedRGB"/>
                            <constraints>
                                <constraint firstAttribute="height" constant="20" id="957-kf-gZC"/>
                            </constraints>
                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
                            <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                            <nil key="highlightedColor"/>
                        </label>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="《我们仍未知道那天所看见的花的名字》" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="sa0-AD-kQm" userLabel="title">
                            <rect key="frame" x="10" y="30" width="300" height="53"/>
                            <fontDescription key="fontDescription" type="system" pointSize="22"/>
                            <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                            <nil key="highlightedColor"/>
                        </label>
                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="DCQ-uR-7cN" userLabel="aboveBottomBtn">
                            <rect key="frame" x="10" y="93" width="300" height="163"/>
                            <string key="text">        在我们走过的季节里。路旁盛开的花朵也在不断变化，那个季节盛开的花是叫什么来着？轻轻摇曳着。一碰会微微刺痛。靠近一闻，隐约有股青涩的阳光的气息。那气息渐渐地淡去，我们也在慢慢长大。但是，那朵花一定还在某个地方盛开着……对。我们永远都会继续实现那朵花的愿望。
</string>
                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
                            <color key="textColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                            <nil key="highlightedColor"/>
                        </label>
                        <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="8Yn-es-0DL" userLabel="bottomBtn">
                            <rect key="frame" x="10" y="936" width="300" height="44"/>
                            <color key="backgroundColor" red="0.12549019610000001" green="0.41176470590000003" blue="0.89019607840000003" alpha="1" colorSpace="calibratedRGB"/>
                            <constraints>
                                <constraint firstAttribute="height" constant="44" id="gwI-DX-zdv"/>
                            </constraints>
                            <state key="normal" title="贴底按钮">
                                <color key="titleColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
                            </state>
                        </button>
                    </subviews>
                    <constraints>
                        <constraint firstAttribute="trailing" secondItem="8Yn-es-0DL" secondAttribute="trailing" constant="10" id="2Sj-DP-5zS"/>
                        <constraint firstItem="klg-gx-6SQ" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" id="4ib-Ge-5re"/>
                        <constraint firstAttribute="trailing" secondItem="sa0-AD-kQm" secondAttribute="trailing" constant="10" id="5hV-GO-DHI"/>
                        <constraint firstItem="8Yn-es-0DL" firstAttribute="top" secondItem="DCQ-uR-7cN" secondAttribute="bottom" constant="680" id="Bqm-NR-8A8"/>
                        <constraint firstItem="DCQ-uR-7cN" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" constant="10" id="MzR-eI-wQH"/>
                        <constraint firstAttribute="trailing" secondItem="DCQ-uR-7cN" secondAttribute="trailing" constant="10" id="OlQ-hF-YOE"/>
                        <constraint firstItem="sa0-AD-kQm" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" constant="10" id="Ov5-hC-0YJ"/>
                        <constraint firstItem="8Yn-es-0DL" firstAttribute="leading" secondItem="trS-aa-5Y1" secondAttribute="leading" constant="10" id="SOi-xe-8cK"/>
                        <constraint firstAttribute="trailing" secondItem="klg-gx-6SQ" secondAttribute="trailing" id="VXs-dc-6sE"/>
                        <constraint firstAttribute="bottom" secondItem="8Yn-es-0DL" secondAttribute="bottom" constant="10" id="dHI-dN-yVt"/>
                        <constraint firstItem="klg-gx-6SQ" firstAttribute="top" secondItem="trS-aa-5Y1" secondAttribute="top" id="nXy-dY-Pjo"/>
                        <constraint firstItem="DCQ-uR-7cN" firstAttribute="top" secondItem="sa0-AD-kQm" secondAttribute="bottom" constant="10" id="wJe-px-BJF"/>
                        <constraint firstItem="sa0-AD-kQm" firstAttribute="top" secondItem="klg-gx-6SQ" secondAttribute="bottom" constant="10" id="xgH-xa-og8"/>
                    </constraints>
                </scrollView>
            </subviews>
            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
            <constraints>
                <constraint firstAttribute="trailing" secondItem="qgo-zY-zlk" secondAttribute="trailing" id="7g9-JP-7u3"/>
                <constraint firstAttribute="trailing" secondItem="trS-aa-5Y1" secondAttribute="trailing" id="7mq-nm-RX2"/>
                <constraint firstItem="trS-aa-5Y1" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="DQT-lq-HsE"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="Egw-Tf-Zad"/>
                <constraint firstAttribute="bottom" secondItem="qgo-zY-zlk" secondAttribute="bottom" id="FZN-U0-yPY"/>
                <constraint firstAttribute="bottom" secondItem="trS-aa-5Y1" secondAttribute="bottom" id="U1y-5T-guj"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="width" secondItem="klg-gx-6SQ" secondAttribute="width" id="ey8-H5-mSu"/>
                <constraint firstItem="trS-aa-5Y1" firstAttribute="top" secondItem="i5M-Pr-FkT" secondAttribute="top" id="ndZ-fs-HcT"/>
                <constraint firstItem="qgo-zY-zlk" firstAttribute="leading" secondItem="i5M-Pr-FkT" secondAttribute="leading" id="u6f-bB-I4B"/>
            </constraints>
            <nil key="simulatedStatusBarMetrics"/>
            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
        </view>
    </objects>
</document>