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=,//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(, , alertRect.size.width, alertRect.size.height)];

        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];

        [_alertView addSubview:alertBg];

        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(, , , )];

        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(, , , )];

        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 = ;

        [_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(, , 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(, , 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(, , alertRect.size.width, alertRect.size.height)];

        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];

        [_alertView addSubview:alertBg];

        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(, , , )];

        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(, , , )];

        contentLabel.textColor = [UIColor whiteColor];

        contentLabel.backgroundColor = [UIColor clearColor];

        contentLabel.font = [UIFont systemFontOfSize:fontSize];

        contentLabel.text =msg;

        contentLabel.textAlignment=UITextAlignmentCenter;

        contentLabel.lineBreakMode = UILineBreakModeWordWrap;

        contentLabel.numberOfLines = ;

        [_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(, , 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(, , 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(, , alertRect.size.width, alertRect.size.height)];

        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];

        [_alertView addSubview:alertBg];

        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(, , , )];

        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(, , , )];

        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(, , , );

        [_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(, , alertRect.size.width, alertRect.size.height)];

        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];

        [_alertView addSubview:alertBg];

        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(, , , )];

        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(, , , );

        [_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(, , alertRect.size.width, alertRect.size.height)];

        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];

        [_alertView addSubview:alertBg];

        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(, , , )];

        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(, , , )] 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(, , 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(, , 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(, , alertRect.size.width, alertRect.size.height)];

        alertBg.image = [UIImage imageNamed:@"AlertView_background.png"];

        [_alertView addSubview:alertBg];

        [alertBg release];

        titleLabel=[[UILabel alloc] initWithFrame:CGRectMake(, , , )];

        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 = ;

        CGFloat xLabel2 = ;

        CGFloat yLevel1 = ;

        CGFloat yLevel2 = ;

        UILabel* label = nil;

        label = [[UILabel alloc]initWithFrame:CGRectMake(xLabel1, yLevel1, , )];

        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,, )];

        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, , )];

        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, , )] 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:];

        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(, , 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(, , 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]>){

        UIView* subView = [windowViews objectAtIndex:[windowViews count]-];

        for(UIView* aSubView in subView.subviews)

        {

            [aSubView.layer removeAllAnimations];

        }

        [subView addSubview:self];

    }

}

- (void)showBackground

{

    _bgView.alpha = ;

    [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-)/, (self.frame.size.height-)/, , );

    }

    else

    {

        UIImage* image=[UIImage imageNamed:@"AlertView_background.png"];

        CGSize imageSize = image.size;

        retRect= CGRectMake((self.frame.size.width-imageSize.width)/, (self.frame.size.height-imageSize.height)/, 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]>)

        {

            return NO;

        }

    }

    return YES;

}

@end

调用：

            CustomAlertView* alert = [[CustomAlertView alloc]initWithTitle:nil

                                                                       msg:@"测试alertview"

                                                            centerBtnTitle:@"确定"];

            [alert show];

            [alert release];

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