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用于下拉列表框(android微调器)样式控件的iOS部分屏幕对话框_Ios_Cocoa Touch - Fatal编程技术网

用于下拉列表框(android微调器)样式控件的iOS部分屏幕对话框

用于下拉列表框(android微调器)样式控件的iOS部分屏幕对话框,ios,cocoa-touch,Ios,Cocoa Touch,在iPhone的iOS中,当配置为类似于下拉列表框时,我想制作一个外观和行为与android spinner控件类似的控件。特别是当按下时,会出现带有单选按钮的文本选项模式列表,当按下其中一个按钮时,列表将消失,控件将更新为该选项。示例: 到目前为止,我已经看到了一个使用[self-presentViewController…]和自定义ViewController的全屏选项,但我想要一个部分屏幕(如上图所示)解决方案。有人知道怎么做吗,或者可以指出正确的方向。本机解决方案将是一个UIActio

在iPhone的iOS中,当配置为类似于下拉列表框时,我想制作一个外观和行为与android spinner控件类似的控件。特别是当按下时,会出现带有单选按钮的文本选项模式列表,当按下其中一个按钮时,列表将消失,控件将更新为该选项。示例:


到目前为止,我已经看到了一个使用[self-presentViewController…]和自定义ViewController的全屏选项,但我想要一个部分屏幕(如上图所示)解决方案。有人知道怎么做吗,或者可以指出正确的方向。

本机解决方案将是一个UIActionSheet,它在iPhone上显示在底部,部分显示在屏幕上,或者在iPad上,与android版本非常相似


您可以在此处找到文档:

如果您不想使用UIActionSheet,并且您想使其可重用,而不是向当前的XIB中添加大量UIView,那么您可以创建一个自定义UIView,其中包含您需要填充的任何接口,并使用接口生成器帮助使其看起来正常

该视图可以有一个消息处理程序,用于发布您需要侦听的响应

然后只需初始化并将视图加载到子视图中并填充它

然后将来自自定义视图的消息发布到您注册的处理程序

因此,对于您的自定义视图,您将有如下内容

@implementation SomeCustomView
+(SomeCustomView*)viewFromNibNamed:(NSString *)nibName{
    NSArray *nibContents = [[NSBundle mainBundle] loadNibNamed:nibName owner:self options:NULL];
    NSEnumerator *nibEnumerator = [nibContents objectEnumerator];
    SomeCustomView *customView = nil;
    NSObject* nibItem = nil;
    while ((nibItem = [nibEnumerator nextObject]) != nil) {
        if ([nibItem isKindOfClass:[AADropDown class]]) {
            customView = (SomeCustomView*)nibItem;
            break;
        }
    }
    return customView;
}
-(void)someInitializationWith:(NSArray*)repeatableData andNotificationId:(NSString*)noteId{
//set your stuff up for the view here and save the notification id
}
...
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
[[NSNotificationCenter defaultCenter] postNotificationName:Your_Notification_Id object:somevalue];
}
@end
并包括其他内容,比如在本例中的tableview内容或任何其他逻辑

然后在viewcontroller中,您可以像这样调用它

__block id observer = [[NSNotificationCenter defaultCenter] addObserverForName:@"customViewAction" object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *note) {
    //deal with notification here
    [[NSNotificationCenter defaultCenter] removeObserver: observer];
}];
SomeCustomView *cv =(SomeCustomView*) [SomeCustomView viewFromNibNamed:@"SomeCustomView"];
[cv someInitializationWith:arrayOptions andNotificationId:@"customViewAction"];
[self.view addSubview:cv];
在界面生成器中,您只需确保将视图的类设置为您的类类型


然后,只要用户需要以相同的方式选择其他内容,您就可以轻松地再次重用此代码。

这里是AtomRiot建议的解决方案的一个变体

在视图(xib或故事板)上制作一个按钮并将此图形指定给它。如果它在编辑器中显示为伸展状态,请不要担心。代码将使其成为可实现的图形。
2X版本

然后在项目中包括以下文件(复制如下):
DDLBHelper.h DDLBHelper.m

//  DDLBHelper.m
//  Created by MindSpiker on 9/27/12.

#import "DDLBHelper.h"
#import <QuartzCore/QuartzCore.h>

@interface DDLBHelper () {
@private
    UIViewController *mVC;
    UIButton *mButton;
    NSArray *mValues;
    int mValue;

    UITableView *mTV;

    UIView *mBackgroundV;

}

@end

@implementation DDLBHelper

@synthesize delegate;

- (id) init {
    self = [super init];
    mVC = nil;
    mButton = nil;
    mValues = nil;
    mValue = -1;
    return self;
}

- (id) initWithWithViewController:(UIViewController *)viewController button:(UIButton *)button stringArray:(NSArray *)values currentValue:(int) currentValue {
    self = [super init];

    // save pointers
    mVC = viewController;
    mButton = button;
    mValues = values;
    mValue = currentValue;

    [self setupButton];

    return self;
}

- (void) popupList{
    if (mBackgroundV == nil){
        mBackgroundV = [self setupBackgroundView];
        [mVC.view addSubview:mBackgroundV];
    }
    if (mTV == nil){
        mTV = [self setupTableView];
        [mVC.view addSubview:mTV];
    }
    [mTV reloadData];
    [mBackgroundV setHidden:NO];
    [mTV setHidden:NO];
}

- (BOOL) isShown{
    return !mTV.isHidden;
}

- (void) adjustToRotation{
    BOOL isShown = [self isShown];

    // remove the controls
    if (mBackgroundV != nil){
        [mBackgroundV removeFromSuperview];
        mBackgroundV = nil;
    }
    if (mTV != nil){
        [mTV removeFromSuperview];
        mTV = nil;
    }

    if (isShown){
        [self popupList];
    }
}

- (int) getValue{
    return mValue;
}

- (NSString *) getValueText{
    if (mValues != nil && mValue > -1) {
        if (mValues.count > mValue){
            return [mValues objectAtIndex:mValue];
        }
    }
    return nil;
}

- (void) updateButtonTitle{
    NSString *title = [NSString stringWithFormat:@"  %@", [self getValueText]];

    [mButton setTitle:title forState:UIControlStateNormal];
}

- (void) setupButton {
    UIImage *buttonBG = [UIImage imageNamed:@"sis_proceeds_ddlb.png"];
    UIEdgeInsets insets = UIEdgeInsetsMake(8, 8, 8, 45);
    UIImage *sizableImg = [buttonBG resizableImageWithCapInsets:insets];
    [mButton setBackgroundImage:sizableImg forState:UIControlStateNormal];
    [mButton setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
    [self updateButtonTitle];
}

- (UIView *) setupBackgroundView{
    UIView *v = [[UIView alloc] initWithFrame:mVC.view.bounds];
    [[v layer] setOpaque:NO];
    [[v layer] setOpacity:0.7f];
    [[v layer] setBackgroundColor:[UIColor blackColor].CGColor];
    return v;
}

- (UITableView *) setupTableView {
    CGRect rect = [self makeTableViewRect];
    UITableView *tv = [[UITableView alloc] initWithFrame:rect style:UITableViewStylePlain];
    [tv setDelegate:self];
    [tv setDataSource:self];
    [tv setBackgroundColor:[UIColor whiteColor]];
    [[tv layer] setBorderWidth:2];
    [[tv layer] setBorderColor:[UIColor lightGrayColor].CGColor];
    [[tv layer] setCornerRadius:10];
    [mVC.view addSubview:tv];
    return tv;
}

- (CGRect) makeTableViewRect {
    float l=0.0, t=0.0, w=0.0, h=0.0, maxH=0.0, cellH=0.0, cellsH=0.0;

    // get 
    l = mButton.frame.origin.x;
    w = mButton.frame.size.width;
    t = mVC.view.bounds.origin.y + 50;
    maxH = mVC.view.bounds.size.height - 100;

    // get cell height
    UITableViewCell *c = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil];
    cellH = c.bounds.size.height;

    // see if list will overlow maxH(eight)
    cellsH = cellH * mValues.count;
    if (cellsH > maxH) {
        h = maxH;
    } else {
        h = cellsH;
    }

    return CGRectMake(l, t, w, h);
}

#pragma mark - TableView Delegate functions

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return  1;  // this is a one section table
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return mValues.count;   // should be called for only one section
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    // try to resuse a cell if possible
    static NSString *RESUSE_IDENTIFIER = @"myResuseIdentifier";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:RESUSE_IDENTIFIER];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:RESUSE_IDENTIFIER];
    }

    cell.textLabel.text = [mValues objectAtIndex:indexPath.row];
    if (mValue == indexPath.row){
        cell.accessoryType = UITableViewCellAccessoryCheckmark;

    } else {
        cell.accessoryType = UITableViewCellAccessoryNone;
    }

    return cell;

}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    // save value and hide view
    mValue = indexPath.row;
    [self updateButtonTitle];
    [mBackgroundV setHidden:YES];
    [mTV setHidden:YES];
    [delegate itemSelected:mValue];
}
@end
然后在ViewController的.h文件中创建指向按钮的链接:

@property (weak, nonatomic) IBOutlet UIButton *ddlbB;
- (IBAction)ddlbBClick:(id)sender;
在ViewController的.m文件中,进行以下调用:

@synthesize ddlbB, choiceLabel;
DDLBHelper *mDDLBH;
- (void)viewDidLoad {
    [super viewDidLoad];
    NSArray *strings = [[NSArray alloc] initWithObjects:@"Item 1", @"Item 2", @"Item 3", nil];
    mDDLBH = [[DDLBHelper alloc] initWithWithViewController:self button:ddlbB stringArray:strings currentValue:1];
}

- (IBAction)ddlbBClick:(id)sender {
    [mDDLBH popupList];
}
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration{
    [mDDLBH adjustToRotation];
}
就像安卓一样工作

以下是文件:
DDLBHelper.h

//  DDLBHelper.h
//  Created by MindSpiker on 9/27/12.

#import <Foundation/Foundation.h>
@protocol DDLBHelperDelegate <NSObject>
@required
- (void) itemSelected: (int)value;
@end

@interface DDLBHelper : UIViewController <UITableViewDelegate, UITableViewDataSource>{
    id <DDLBHelperDelegate> delegate;
}

@property (retain) id delegate;

// external interface
- (id) init;
- (id) initWithWithViewController:(UIViewController *)viewController button:(UIButton *)button stringArray:(NSArray *)values currentValue:(int) currentValue;
- (void) popupList;
- (BOOL) isShown;
- (void) adjustToRotation;
- (int) getValue;
- (NSString *)getValueText;

@end
//DDLBHelper.h
//由Mindspeaker于2012年9月27日创建。
#进口
@协议DDLBHelperDelegate
@必需的
-(void)itemSelected:(int)值;
@结束
@接口DDLBHelper:UIViewController{
id代表;
}
@属性(保留)id委托;
//外部接口
-(id)init;
-(id)initWithWithViewController:(UIViewController*)viewController按钮:(UIButton*)按钮字符串数组:(NSArray*)值currentValue:(int)currentValue;
-(void)popupList;
-(布尔)伊肖恩;
-(无效)调整旋转;
-(int)getValue;
-(NSString*)getValueText;
@结束
DDLBHelper.m

//  DDLBHelper.m
//  Created by MindSpiker on 9/27/12.

#import "DDLBHelper.h"
#import <QuartzCore/QuartzCore.h>

@interface DDLBHelper () {
@private
    UIViewController *mVC;
    UIButton *mButton;
    NSArray *mValues;
    int mValue;

    UITableView *mTV;

    UIView *mBackgroundV;

}

@end

@implementation DDLBHelper

@synthesize delegate;

- (id) init {
    self = [super init];
    mVC = nil;
    mButton = nil;
    mValues = nil;
    mValue = -1;
    return self;
}

- (id) initWithWithViewController:(UIViewController *)viewController button:(UIButton *)button stringArray:(NSArray *)values currentValue:(int) currentValue {
    self = [super init];

    // save pointers
    mVC = viewController;
    mButton = button;
    mValues = values;
    mValue = currentValue;

    [self setupButton];

    return self;
}

- (void) popupList{
    if (mBackgroundV == nil){
        mBackgroundV = [self setupBackgroundView];
        [mVC.view addSubview:mBackgroundV];
    }
    if (mTV == nil){
        mTV = [self setupTableView];
        [mVC.view addSubview:mTV];
    }
    [mTV reloadData];
    [mBackgroundV setHidden:NO];
    [mTV setHidden:NO];
}

- (BOOL) isShown{
    return !mTV.isHidden;
}

- (void) adjustToRotation{
    BOOL isShown = [self isShown];

    // remove the controls
    if (mBackgroundV != nil){
        [mBackgroundV removeFromSuperview];
        mBackgroundV = nil;
    }
    if (mTV != nil){
        [mTV removeFromSuperview];
        mTV = nil;
    }

    if (isShown){
        [self popupList];
    }
}

- (int) getValue{
    return mValue;
}

- (NSString *) getValueText{
    if (mValues != nil && mValue > -1) {
        if (mValues.count > mValue){
            return [mValues objectAtIndex:mValue];
        }
    }
    return nil;
}

- (void) updateButtonTitle{
    NSString *title = [NSString stringWithFormat:@"  %@", [self getValueText]];

    [mButton setTitle:title forState:UIControlStateNormal];
}

- (void) setupButton {
    UIImage *buttonBG = [UIImage imageNamed:@"sis_proceeds_ddlb.png"];
    UIEdgeInsets insets = UIEdgeInsetsMake(8, 8, 8, 45);
    UIImage *sizableImg = [buttonBG resizableImageWithCapInsets:insets];
    [mButton setBackgroundImage:sizableImg forState:UIControlStateNormal];
    [mButton setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
    [self updateButtonTitle];
}

- (UIView *) setupBackgroundView{
    UIView *v = [[UIView alloc] initWithFrame:mVC.view.bounds];
    [[v layer] setOpaque:NO];
    [[v layer] setOpacity:0.7f];
    [[v layer] setBackgroundColor:[UIColor blackColor].CGColor];
    return v;
}

- (UITableView *) setupTableView {
    CGRect rect = [self makeTableViewRect];
    UITableView *tv = [[UITableView alloc] initWithFrame:rect style:UITableViewStylePlain];
    [tv setDelegate:self];
    [tv setDataSource:self];
    [tv setBackgroundColor:[UIColor whiteColor]];
    [[tv layer] setBorderWidth:2];
    [[tv layer] setBorderColor:[UIColor lightGrayColor].CGColor];
    [[tv layer] setCornerRadius:10];
    [mVC.view addSubview:tv];
    return tv;
}

- (CGRect) makeTableViewRect {
    float l=0.0, t=0.0, w=0.0, h=0.0, maxH=0.0, cellH=0.0, cellsH=0.0;

    // get 
    l = mButton.frame.origin.x;
    w = mButton.frame.size.width;
    t = mVC.view.bounds.origin.y + 50;
    maxH = mVC.view.bounds.size.height - 100;

    // get cell height
    UITableViewCell *c = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil];
    cellH = c.bounds.size.height;

    // see if list will overlow maxH(eight)
    cellsH = cellH * mValues.count;
    if (cellsH > maxH) {
        h = maxH;
    } else {
        h = cellsH;
    }

    return CGRectMake(l, t, w, h);
}

#pragma mark - TableView Delegate functions

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return  1;  // this is a one section table
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return mValues.count;   // should be called for only one section
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    // try to resuse a cell if possible
    static NSString *RESUSE_IDENTIFIER = @"myResuseIdentifier";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:RESUSE_IDENTIFIER];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:RESUSE_IDENTIFIER];
    }

    cell.textLabel.text = [mValues objectAtIndex:indexPath.row];
    if (mValue == indexPath.row){
        cell.accessoryType = UITableViewCellAccessoryCheckmark;

    } else {
        cell.accessoryType = UITableViewCellAccessoryNone;
    }

    return cell;

}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    // save value and hide view
    mValue = indexPath.row;
    [self updateButtonTitle];
    [mBackgroundV setHidden:YES];
    [mTV setHidden:YES];
    [delegate itemSelected:mValue];
}
@end
//DDLBHelper.m
//由Mindspeaker于2012年9月27日创建。
#导入“DDLBHelper.h”
#进口
@接口DDLBHelper(){
@私人的
UIViewController*mVC;
UIButton*mButton;
NSArray*m值;
int值;
UITableView*mTV;
UIView*mBackgroundV;
}
@结束
@实现DDLBHelper
@综合代表;
-(id)init{
self=[super init];
mVC=零;
姆布顿=零;
M值=零;
mValue=-1;
回归自我;
}
-(id)initWithWithViewController:(UIViewController*)viewController按钮:(UIButton*)按钮字符串数组:(NSArray*)值currentValue:(int)currentValue{
self=[super init];
//保存指针
mVC=视图控制器;
mButton=按钮;
M值=值;
M值=当前值;
[自我设置按钮];
回归自我;
}
-(void)popupList{
如果(mBackgroundV==nil){
mBackgroundV=[自设置背景视图];
[mVC.view addSubview:mBackgroundV];
}
如果(mTV==nil){
mTV=[自设置表视图];
[mVC.view addSubview:mTV];
}
[mTV重新加载数据];
[mBackgroundV setHidden:否];
[mTV设置隐藏:否];
}
-伊肖恩{
返回!mTV.ishiden;
}
-(无效)调整旋转{
BOOL-isShown=[self-isShown];
//卸下控制装置
如果(mBackgroundV!=nil){
[mBackgroundV从SuperView移除];
mBackgroundV=零;
}
如果(mTV!=零){
[mTV从SuperView移除];
mTV=零;
}
如果(isShown){
[自我宣传];
}
}
-(int)getValue{
返回mValue;
}
-(NSString*)getValueText{
if(mValues!=nil&&mValue>-1){
if(mValues.count>mValue){
返回[mValues objectAtIndex:mValue];
}
}
返回零;
}
-(无效)UpdateButtontTitle{
NSString*title=[NSString stringWithFormat:@“%@,[self-getValueText]];
[mButton setTitle:状态的标题:UIControlStateNormal];
}
-(无效)设置按钮{
UIImage*buttonBG=[UIImage ImageName:@“sis_progressions_ddlb.png”];
UIEdgeInsets insets=UIEdgeInsetsMake(8,8,8,45);
UIImage*sizableImg=[buttonBG ResizebleImageWithCapInsets:insets];
[mButton setBackgroundImage:sizableImg for状态:UIControlStateNormal];
[mButton设置内容水平对齐:uicontrol内容水平对齐左];
[自我更新按钮标题];
}
-(UIView*)设置背景视图{
UIView*v=[[UIView alloc]initWithFrame:mVC.view.bounds];
[[v层]设置不透明:否];
[[v层]设置不透明度:0.7f];
[[v layer]setBackgroundColor:[UIColor blackColor].CGColor];
返回v;
}
-(UITableView*)设置表格视图{
CGRect rect=[self-makeTableViewRect];
UITableView*tv=[[UITableView alloc]initWithFrame:rect样式:UITableView样式普通];
[电视设置代表:自我];
[电视设置数据源:self];
[tv setBackgroundColor:[UIColor whiteColor];
[[tv层]宽度:2];
[[tv层]设置顺序颜色:[UIColor lightGra]