兼容iOs7的自定义alertView

转载请注明出处。

升级到ios7后，旧项目中使用的继承UIAlertView的自定义alertview无法正常显示了，无奈只好换思路去实现，改成从当前keywindow下创建要显示的alertview，并模仿了系统alertview

.h文件

 

#import <UIKit/UIKit.h>

typedef enum
{
    CustomAlertViewType_Msg_TwoBtn=1,//含有title，提示内容以及两个button.
    CustomAlertViewType_Msg_OneBtn,//含有title，提示内容以及一个button.
    CustomAlertViewType_ActivityIndiAndMsg_OneBtn, //含有title，UIActivityIndicatorView控件,提示内容以及一个button.
    CustomAlertViewType_Msg_TextField_TwoBtn,
    CustomAlertViewType_JalBreakBuy_Login,
    CustomAlertViewType_RemindTime,
    
}CustomAlertViewType;

@protocol CustomAlertViewDelegate;

@interface CustomAlertView : UIView<UITextFieldDelegate>
{
    CustomAlertViewType _alertViewType;
    id<CustomAlertViewDelegate> _customDelegate;
    
    UILabel* titleLabel;
    UILabel* contentLabel;
    
    UIButton* leftBtn;
    UIButton* rightBtn;
    UIButton* centerBtn;
    
    UIActivityIndicatorView *indicatorView;
    
    UITextField* textField;
    
    UIView* _alertView;
    UIView* _bgView;

}
@property (nonatomic,assign) id<CustomAlertViewDelegate> customDelegate;
@property (nonatomic,retain) UILabel* contentLabel;
@property (nonatomic,assign) UITextField* textField;

//含有title，提示内容以及两个button.
- (id)initWithTitle:(NSString*)title  msg:(NSString*)msg rightBtnTitle:(NSString*)rightTitle leftBtnTitle:(NSString*)leftTitle delegate:(id<CustomAlertViewDelegate>) _delegate;

- (id)initWithTitle:(NSString*)title  msg:(NSString*)msg rightBtnTitle:(NSString*)rightTitle leftBtnTitle:(NSString*)leftTitle delegate:(id<CustomAlertViewDelegate>) _delegate msgFontSize:(CGFloat)fontSize;
//含有title，提示内容以及一个button.
- (id)initWithTitle:(NSString*)title  msg:(NSString*)msg centerBtnTitle:(NSString*)centerTitle;

//含有title，UIActivityIndicatorView控件,提示内容以及一个button.
- (id)initProgressAlertViewWithTitle:(NSString*)title  msg:(NSString*)msg centerBtnTitle:(NSString*)centerTitle delegate:(id<CustomAlertViewDelegate>) _delegate;

//含有title，textfield，提示内容以及两个button.
- (id)initTextFieldWithTitle:(NSString*)title  msg:(NSString*)msg rightBtnTitle:(NSString*)rightTitle leftBtnTitle:(NSString*)leftTitle delegate:(id<CustomAlertViewDelegate>) _delegate;

//含title,两个button，密码输入textfield，用户名等提示信息
-(id)initLoginWithDelegate:(id<CustomAlertViewDelegate>)delegate userId:(NSString*)userid title:(NSString*)strTitle rightBtnTitle:(NSString*)strRbt;

- (id)initRemindAlert;

-(void) show;
- (void) hideAlertView;

-(void) setTitle:(NSString*) title;
@end

@protocol CustomAlertViewDelegate <NSObject>

@optional

- (void) leftBtnPressedWithinalertView:(CustomAlertView*)alert;
- (void) rightBtnPressedWithinalertView:(CustomAlertView*)alert;
- (void) centerBtnPressedWithinalertView:(CustomAlertView*)alert;

@end

.m文件

#import "CustomAlertView.h"
#import "UIScreen+Frame.h"
#import "CustomAlertView.h"

#define MAX_CATEGORY_NAME_LENGTH 9
#define kTagViewTextFieldJalBreakPassW (1001)
@implementation CustomAlertView


@synthesize customDelegate = _customDelegate;
@synthesize contentLabel;
@synthesize textField;

//含有title，提示内容以及两个button.
- (id)initWithTitle:(NSString*)title  msg:(NSString*)msg rightBtnTitle:(NSString*)rightTitle leftBtnTitle:(NSString*)leftTitle  delegate:(id<CustomAlertViewDelegate>) _delegate
{
    if ((self = [super initWithFrame:[[UIScreen mainScreen] LandscapeBounds]]))
    {
        // Initialization code
        _alertViewType=CustomAlertViewType_Msg_TwoBtn;
        self.customDelegate=_delegate;
        
        [self setBackgroundColor:[UIColor clearColor]];
        _bgView = [[UIView alloc] initWithFrame:self.frame];
        [_bgView setBackgroundColor:[UIColor blackColor]];
        [self addSubview:_bgView];
        [_bgView release];
        
        CGRect alertRect = [self getAlertBounds];
        _alertView = [[UIView alloc] initWithFrame:alertRect];
        
        UIImageView *alertBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, alertRect.size.width, alertRect.size.height)];
        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];
        [_alertView addSubview:alertBg];
        [alertBg release];
        
        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(10, 10, 280, 20)];
        titleLabel.textColor = [UIColor whiteColor];
        titleLabel.backgroundColor = [UIColor clearColor];
        titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
        titleLabel.text =title;
        titleLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:titleLabel];
        [titleLabel release];
        
        contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 40, 260, 40)];
        contentLabel.textColor = [UIColor whiteColor];
        contentLabel.backgroundColor = [UIColor clearColor];
        contentLabel.font = [UIFont systemFontOfSize:15.0];
        contentLabel.text =msg;
        contentLabel.textAlignment=UITextAlignmentCenter;
        contentLabel.lineBreakMode = UILineBreakModeWordWrap;
        contentLabel.numberOfLines = 0;
        [_alertView addSubview:contentLabel];
        [contentLabel release];
        
        UIImage* unselectedImg=[UIImage imageNamed:@"button_unselected.png"];
        UIImage* selectedImg=[UIImage imageNamed:@"button_selected.png"];
        rightBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [rightBtn setBackgroundImage:selectedImg forState:UIControlStateNormal];
        [rightBtn setTitle:rightTitle forState:UIControlStateNormal];
        rightBtn.frame=CGRectMake(155, 85, selectedImg.size.width, selectedImg.size.height);
        [_alertView addSubview:rightBtn];
        [rightBtn addTarget:self action:@selector(rightBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        
        leftBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [leftBtn setBackgroundImage:unselectedImg forState:UIControlStateNormal];
        [leftBtn setTitle:leftTitle forState:UIControlStateNormal];
        [leftBtn addTarget:self action:@selector(leftBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        leftBtn.frame=CGRectMake(20, 85, unselectedImg.size.width, unselectedImg.size.height);
        [_alertView addSubview:leftBtn];
        
        [self addSubview:_alertView];
        [_alertView release];
        [self showBackground];
        [self showAlertAnmation];

    }
    return self;
}


//可修改字体
- (id)initWithTitle:(NSString*)title
                msg:(NSString*)msg
      rightBtnTitle:(NSString*)rightTitle
       leftBtnTitle:(NSString*)leftTitle
           delegate:(id<CustomAlertViewDelegate>) _delegate
        msgFontSize:(CGFloat)fontSize
{
    if ((self = [super initWithFrame:[[UIScreen mainScreen] LandscapeBounds]]))
    {
        // Initialization code
        _alertViewType=CustomAlertViewType_Msg_TwoBtn;
        self.customDelegate=_delegate;
        
        [self setBackgroundColor:[UIColor clearColor]];
        _bgView = [[UIView alloc] initWithFrame:self.frame];
        [_bgView setBackgroundColor:[UIColor blackColor]];
        [self addSubview:_bgView];
        [_bgView release];
        
        CGRect alertRect = [self getAlertBounds];
        _alertView = [[UIView alloc] initWithFrame:alertRect];
        
        UIImageView *alertBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, alertRect.size.width, alertRect.size.height)];
        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];
        [_alertView addSubview:alertBg];
        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(10, 10, 280, 20)];
        titleLabel.textColor = [UIColor whiteColor];
        titleLabel.backgroundColor = [UIColor clearColor];
        titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
        titleLabel.text =title;
        titleLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:titleLabel];
        [titleLabel release];
        
        contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 30, 260, 40)];
        contentLabel.textColor = [UIColor whiteColor];
        contentLabel.backgroundColor = [UIColor clearColor];
        contentLabel.font = [UIFont systemFontOfSize:fontSize];
        contentLabel.text =msg;
        contentLabel.textAlignment=UITextAlignmentCenter;
        contentLabel.lineBreakMode = UILineBreakModeWordWrap;
        contentLabel.numberOfLines = 0;
        [_alertView addSubview:contentLabel];
        [contentLabel release];
        
        UIImage* unselectedImg=[UIImage imageNamed:@"button_unselected.png"];
        UIImage* selectedImg=[UIImage imageNamed:@"button_selected.png"];
        rightBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [rightBtn setBackgroundImage:selectedImg forState:UIControlStateNormal];
        [rightBtn setTitle:rightTitle forState:UIControlStateNormal];
        rightBtn.frame=CGRectMake(155, 85, selectedImg.size.width, selectedImg.size.height);
        [_alertView addSubview:rightBtn];
        [rightBtn addTarget:self action:@selector(rightBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        
        leftBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [leftBtn setBackgroundImage:unselectedImg forState:UIControlStateNormal];
        [leftBtn setTitle:leftTitle forState:UIControlStateNormal];
        [leftBtn addTarget:self action:@selector(leftBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        leftBtn.frame=CGRectMake(20, 85, unselectedImg.size.width, unselectedImg.size.height);
        [_alertView addSubview:leftBtn];
        
        [self addSubview:_alertView];
        [_alertView release];
        [self showBackground];
        [self showAlertAnmation];
    }
    return self;
}


- (id)initWithTitle:(NSString*)title  msg:(NSString*)msg centerBtnTitle:(NSString*)centerTitle
{

    self = [super initWithFrame:[[UIScreen mainScreen] LandscapeBounds]];
    if(self)
    {
        _alertViewType=CustomAlertViewType_Msg_OneBtn;
        [self setBackgroundColor:[UIColor clearColor]];
        _bgView = [[UIView alloc] initWithFrame:self.frame];
        [_bgView setBackgroundColor:[UIColor blackColor]];
        [self addSubview:_bgView];
        [_bgView release];

        CGRect alertRect = [self getAlertBounds];
        _alertView = [[UIView alloc] initWithFrame:alertRect];

        UIImageView *alertBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, alertRect.size.width, alertRect.size.height)];
        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];
        [_alertView addSubview:alertBg];
        [alertBg release];
        
        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(0, 10, 300, 20)];
        titleLabel.textColor = [UIColor whiteColor];
        titleLabel.backgroundColor = [UIColor clearColor];
        titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
        titleLabel.text =title;
        titleLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:titleLabel];
        [titleLabel release];
        
        contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 45, 260, 20)];
        contentLabel.textColor = [UIColor whiteColor];
        contentLabel.backgroundColor = [UIColor clearColor];
        contentLabel.font = [UIFont systemFontOfSize:15.0];
        contentLabel.text =msg;
        contentLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:contentLabel];
        [contentLabel release];
        
        UIImage* selectedImg=[UIImage imageNamed:@"bigbuttonbkimg.png"];
        centerBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [centerBtn setBackgroundImage:selectedImg forState:UIControlStateNormal];
        [centerBtn setTitle:centerTitle forState:UIControlStateNormal];
        centerBtn.frame=CGRectMake(27, 85, 249, 43);
        [_alertView addSubview:centerBtn];
        [centerBtn addTarget:self action:@selector(centerBtnPressed:) forControlEvents:UIControlEventTouchUpInside];

        [self addSubview:_alertView];
        [_alertView release];
        [self showBackground];
        [self showAlertAnmation];
    }
    return self;
}


//含有title，UIActivityIndicatorView控件,提示内容以及一个button.
- (id)initProgressAlertViewWithTitle:(NSString*)title  msg:(NSString*)msg centerBtnTitle:(NSString*)centerTitle  delegate:(id<CustomAlertViewDelegate>) _delegate
{
    if ((self = [super initWithFrame:[[UIScreen mainScreen] LandscapeBounds]]))
    {
        // Initialization code
        _alertViewType=CustomAlertViewType_ActivityIndiAndMsg_OneBtn;
        self.customDelegate=_delegate;
        
        [self setBackgroundColor:[UIColor clearColor]];
        _bgView = [[UIView alloc] initWithFrame:self.frame];
        [_bgView setBackgroundColor:[UIColor blackColor]];
        [self addSubview:_bgView];
        [_bgView release];
        
        CGRect alertRect = [self getAlertBounds];
        _alertView = [[UIView alloc] initWithFrame:alertRect];
        
        UIImageView *alertBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, alertRect.size.width, alertRect.size.height)];
        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];
        [_alertView addSubview:alertBg];
        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(0, 10, 300, 20)];
        titleLabel.textColor = [UIColor whiteColor];
        titleLabel.backgroundColor = [UIColor clearColor];
        titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
        titleLabel.text =title;
        titleLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:titleLabel];
        [titleLabel release];
        
        indicatorView= [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(80.0, 45.0, 30.0, 30.0)];
        indicatorView.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
        indicatorView.hidesWhenStopped=NO;
        [_alertView addSubview:indicatorView];
        [indicatorView release];
        [indicatorView startAnimating];
        
        contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(120.0, 50.0, 150.0, 20.0)];
        contentLabel.textColor = [UIColor whiteColor];
        contentLabel.backgroundColor = [UIColor clearColor];
        contentLabel.font = [UIFont boldSystemFontOfSize:15.0];
        contentLabel.text =msg;
        contentLabel.textAlignment=UITextAlignmentLeft;
        [_alertView addSubview:contentLabel];
        [contentLabel release];
        
        UIImage* selectedImg=[UIImage imageNamed:@"button_selected.png"];
        centerBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [centerBtn setBackgroundImage:selectedImg forState:UIControlStateNormal];
        [centerBtn setTitle:centerTitle forState:UIControlStateNormal];
        centerBtn.frame=CGRectMake(27, 85, 249, 43);
        [_alertView addSubview:centerBtn];
        [centerBtn addTarget:self action:@selector(centerBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        
        [self addSubview:_alertView];
        [_alertView release];
        [self showBackground];
        [self showAlertAnmation];
    }
    return self;
}


//含有title，textfield，提示内容以及两个button.
- (id)initTextFieldWithTitle:(NSString*)title  msg:(NSString*)msg rightBtnTitle:(NSString*)rightTitle leftBtnTitle:(NSString*)leftTitle delegate:(id<CustomAlertViewDelegate>) _delegate
{
    if ((self = [super initWithFrame:[[UIScreen mainScreen] LandscapeBounds]]))
    {
        // Initialization code
        _alertViewType=CustomAlertViewType_Msg_TextField_TwoBtn;
        self.customDelegate=_delegate;
        
        [self setBackgroundColor:[UIColor clearColor]];
        _bgView = [[UIView alloc] initWithFrame:self.frame];
        [_bgView setBackgroundColor:[UIColor blackColor]];
        [self addSubview:_bgView];
        [_bgView release];
        
        CGRect alertRect = [self getAlertBounds];
        _alertView = [[UIView alloc] initWithFrame:alertRect];
        
        UIImageView *alertBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, alertRect.size.width, alertRect.size.height)];
        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];
        [_alertView addSubview:alertBg];
        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(0, 15, 300, 20)];
        titleLabel.textColor = [UIColor whiteColor];
        titleLabel.backgroundColor = [UIColor clearColor];
        titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
        titleLabel.text =title;
        titleLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:titleLabel];
        [titleLabel release];
        
        contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 33.0, 300.0, 12.0)];
        contentLabel.textColor = [UIColor clearColor];
        contentLabel.backgroundColor = [UIColor clearColor];
        contentLabel.font = [UIFont boldSystemFontOfSize:8.0];
        contentLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:contentLabel];
        [contentLabel release];
        
        textField = [[[UITextField alloc] initWithFrame:CGRectMake(21, 45, 260, 30)] autorelease];
        textField.borderStyle = UITextBorderStyleRoundedRect;
        textField.clearButtonMode = UITextFieldViewModeWhileEditing;
        textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
        textField.placeholder = msg;
        [textField addTarget:self action:@selector(textFieldChanged) forControlEvents:UIControlEventEditingChanged];
        [_alertView addSubview:textField];
        [textField release];
        
        UIImage* unselectedImg=[UIImage imageNamed:@"button_unselected.png"];
        UIImage* selectedImg=[UIImage imageNamed:@"button_selected.png"];
        rightBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [rightBtn setBackgroundImage:selectedImg forState:UIControlStateNormal];
        [rightBtn setTitle:rightTitle forState:UIControlStateNormal];
        rightBtn.frame=CGRectMake(155, 85, selectedImg.size.width, selectedImg.size.height);
        [_alertView addSubview:rightBtn];
        [rightBtn addTarget:self action:@selector(rightBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        
        leftBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [leftBtn setBackgroundImage:unselectedImg forState:UIControlStateNormal];
        [leftBtn setTitle:leftTitle forState:UIControlStateNormal];
        [leftBtn addTarget:self action:@selector(leftBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        leftBtn.frame=CGRectMake(20, 85, unselectedImg.size.width, unselectedImg.size.height);
        [_alertView addSubview:leftBtn];
        
        [self addSubview:_alertView];
        [_alertView release];
        [self showBackground];
        [self showAlertAnmation];
    }
    return self;
}



-(id)initLoginWithDelegate:(id<CustomAlertViewDelegate>)delegate userId:(NSString*)userid title:(NSString*)strTitle rightBtnTitle:(NSString*)strRbt
{
    if ((self = [super initWithFrame:[[UIScreen mainScreen] LandscapeBounds]]))
    {
        
        _alertViewType = CustomAlertViewType_JalBreakBuy_Login;
        self.customDelegate = delegate;
        
        [self setBackgroundColor:[UIColor clearColor]];
        _bgView = [[UIView alloc] initWithFrame:self.frame];
        [_bgView setBackgroundColor:[UIColor blackColor]];
        [self addSubview:_bgView];
        [_bgView release];
        
        CGRect alertRect = [self getAlertBounds];
        _alertView = [[UIView alloc] initWithFrame:alertRect];
        
        UIImageView *alertBg = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, alertRect.size.width, alertRect.size.height)];
        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];
        [_alertView addSubview:alertBg];
        [alertBg release];

        
        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(10, 20, 280, 20)];
        titleLabel.textColor = [UIColor whiteColor];
        titleLabel.backgroundColor = [UIColor clearColor];
        titleLabel.font = [UIFont boldSystemFontOfSize:17.0];
        titleLabel.text = strTitle;
        titleLabel.textAlignment=UITextAlignmentCenter;
        [_alertView addSubview:titleLabel];
        [titleLabel release];
        
        CGFloat xLabel1 = 20;
        CGFloat xLabel2 = 120;
        CGFloat yLevel1 = 50;
        CGFloat yLevel2 = 100;
        
        
        
        UILabel* label = nil;
        label = [[UILabel alloc]initWithFrame:CGRectMake(xLabel1, yLevel1, 100, 40)];
        label.backgroundColor = [UIColor clearColor];
        label.text = @"账号:";
        label.textColor = [UIColor whiteColor];
        label.font = [UIFont boldSystemFontOfSize:17.0];
        label.textAlignment = UITextAlignmentCenter;
        [_alertView addSubview:label];
        [label release];
        
        label = [[UILabel alloc]initWithFrame:CGRectMake(xLabel2, yLevel1,140, 40)];
        label.backgroundColor = [UIColor clearColor];
        label.text = userid;
        label.textColor = [UIColor whiteColor];
        label.font = [UIFont boldSystemFontOfSize:17.0];
        label.textAlignment = UITextAlignmentLeft;
        [_alertView addSubview:label];
        [label release];
        
        label = [[UILabel alloc]initWithFrame:CGRectMake(xLabel1, yLevel2, 100, 40)];
        label.backgroundColor = [UIColor clearColor];
        label.text = @"密码:";
        label.textColor = [UIColor whiteColor];
        label.font = [UIFont boldSystemFontOfSize:17.0];
        label.textAlignment = UITextAlignmentCenter;
        [_alertView addSubview:label];
        [label release];
        
        textField = [[[UITextField alloc]initWithFrame:CGRectMake(xLabel2, yLevel2, 140, 40)] autorelease];
        textField.delegate = self;
        textField.textColor = kColorLoginInput;
        textField.tag= kTagViewTextFieldJalBreakPassW;
        textField.borderStyle = UITextBorderStyleRoundedRect;
        textField.secureTextEntry = YES;
        textField.returnKeyType = UIReturnKeyDone;
        textField.autocorrectionType = UITextAutocorrectionTypeNo;
        textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
        textField.font = [UIFont systemFontOfSize:17];
        textField.clearButtonMode = UITextFieldViewModeWhileEditing;
        textField.leftViewMode = UITextFieldViewModeAlways;
        textField.keyboardType = UIKeyboardTypeASCIICapable ;
        [_alertView addSubview:textField];
        [textField release];
        
        UIImage* unselectedImg=[UIImage imageNamed:@"button_unselected.png"];
        UIImage* selectedImg=[UIImage imageNamed:@"button_selected.png"];
        
        
        rightBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [rightBtn setBackgroundImage:selectedImg forState:UIControlStateNormal];
        [rightBtn setTitle:strRbt forState:UIControlStateNormal];
        rightBtn.frame=CGRectMake(155, 155, selectedImg.size.width, selectedImg.size.height);
        [_alertView addSubview:rightBtn];
        [rightBtn addTarget:self action:@selector(rightBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        
        leftBtn=[UIButton buttonWithType:UIButtonTypeCustom];
        [leftBtn setBackgroundImage:unselectedImg forState:UIControlStateNormal];
        [leftBtn setTitle:@"取消" forState:UIControlStateNormal];
        [leftBtn addTarget:self action:@selector(leftBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
        leftBtn.frame=CGRectMake(20, 155, unselectedImg.size.width, unselectedImg.size.height);
        [_alertView addSubview:leftBtn];
        
        [self addSubview:_alertView];
        [_alertView release];
        [self showBackground];
        [self showAlertAnmation];
        
    }
    
    return self;
    
}



-(void) show
{
    UIWindow* window = [[UIApplication sharedApplication] keyWindow];
    NSArray* windowViews = [window subviews];
    if(windowViews && [windowViews count]>0){
        UIView* subView = [windowViews objectAtIndex:[windowViews count]-1];
        for(UIView* aSubView in subView.subviews)
        {
            [aSubView.layer removeAllAnimations];
            
            
        }
        [subView addSubview:self];
    }

}


- (void)showBackground
{
    _bgView.alpha = 0;
    [UIView beginAnimations:@"fadeIn" context:nil];
    [UIView setAnimationDuration:0.35];
    _bgView.alpha = 0.6;
    [UIView commitAnimations];
}

-(void) showAlertAnmation
{
    CAKeyframeAnimation * animation;
    animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
    animation.duration = 0.30;
    animation.removedOnCompletion = YES;
    animation.fillMode = kCAFillModeForwards;
    NSMutableArray *values = [NSMutableArray array];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9, 0.9, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.1, 1.1, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];
    animation.values = values;
    [_alertView.layer addAnimation:animation forKey:nil];

}

-(void) hideAlertAnmation
{
    [UIView beginAnimations:@"fadeIn" context:nil];
    [UIView setAnimationDuration:0.35];
    _bgView.alpha = 0.0;
    [UIView commitAnimations];
}



-(CGRect)getAlertBounds
{
    CGRect retRect;
    
    if (_alertViewType == CustomAlertViewType_JalBreakBuy_Login)
    {
        
        retRect= CGRectMake((self.frame.size.width-300)/2, (self.frame.size.height-200)/2, 300, 220);
        
    }
    else
    {
        UIImage* image=[UIImage imageNamed:@"AlertView_background.png"];
        CGSize imageSize = image.size;
        retRect= CGRectMake((self.frame.size.width-imageSize.width)/2, (self.frame.size.height-imageSize.height)/2, imageSize.width, imageSize.height);
        
    }
    
    return retRect;
}


- (void) hideAlertView
{
    _alertView.hidden = YES;
    [self hideAlertAnmation];
    [self performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:0.2];
}

-(void) removeFromSuperview
{
    [super removeFromSuperview];
}


- (void) leftBtnPressed:(id)sender
{
    if (_customDelegate && [_customDelegate respondsToSelector:@selector(leftBtnPressedWithinalertView:)])
    {
        [_customDelegate leftBtnPressedWithinalertView:self];
    }
    else
    {
        [self hideAlertView];
    }
}

- (void) rightBtnPressed:(id)sender
{
    if (_customDelegate && [_customDelegate respondsToSelector:@selector(rightBtnPressedWithinalertView:)])
    {
        [_customDelegate rightBtnPressedWithinalertView:self];
    }
    else
    {
        [self hideAlertView];
    }
}

- (void) centerBtnPressed:(id)sender
{
    if (_customDelegate && [_customDelegate respondsToSelector:@selector(centerBtnPressedWithinalertView:)])
    {
        [_customDelegate centerBtnPressedWithinalertView:self];
    }
    else
    {
        [self hideAlertView];
    }
}

-(void) setTitle:(NSString*) title
{
    titleLabel.text = title;
}

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self endEditing:YES];
}


-(void) textFieldChanged
{
    if ([textField.text length] > MAX_CATEGORY_NAME_LENGTH)
    {
        textField.text = [textField.text substringToIndex:MAX_CATEGORY_NAME_LENGTH];
    }
}

#pragma mark - DelegateTextField


- (BOOL)textFieldShouldReturn:(UITextField *)_textField
{
    if (_textField.tag == kTagViewTextFieldJalBreakPassW)
    {
        [self rightBtnPressed:nil];
        return NO;
    }
    
    return YES;
}


- (BOOL)textField:(UITextField *)textField_ shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    if (textField_.tag == kTagViewTextFieldJalBreakPassW)
    {
        
        if (string && [string length] && [textField_.text length]>15)
        {
            return NO;
        }
        
    }
    
    return YES;
    
}


@end

调用：

            CustomAlertView* alert = [[CustomAlertView alloc]initWithTitle:nil
                                                                       msg:@"测试alertview"
                                                            centerBtnTitle:@"确定"];
            [alert show];
            [alert release];