iOS自定义提示弹出框实现类似UIAlertView的效果

#import <uikit/uikit.h> typedef void(^alertresult)(nsinteger index); @interface xlalertview : uiview @property (nonatomic,copy) alertresult resultindex; - (instancetype)initwithtitle:(nsstring *)title message:(nsstring *)message surebtn:(nsstring *)suretitle canclebtn:(nsstring *)cancletitle; - (void)showxlalertview; @end

#import "xlalertview.h" ///alertview 宽 #define alertw 280 ///各个栏目之间的距离 #define xlspace 10.0 @interface xlalertview() //弹窗 @property (nonatomic,retain) uiview *alertview; //title @property (nonatomic,retain) uilabel *titlelbl; //内容 @property (nonatomic,retain) uilabel *msglbl; //确认按钮 @property (nonatomic,retain) uibutton *surebtn; //取消按钮 @property (nonatomic,retain) uibutton *canclebtn; //横线线 @property (nonatomic,retain) uiview *lineview; //竖线 @property (nonatomic,retain) uiview *verlineview; @end @implementation xlalertview - (instancetype)initwithtitle:(nsstring *)title message:(nsstring *)message surebtn:(nsstring *)suretitle canclebtn:(nsstring *)cancletitle { if (self == [super init]) { self.frame = [uiscreen mainscreen].bounds; self.backgroundcolor = [uicolor colorwithwhite:0.8 alpha:0.6]; self.alertview = [[uiview alloc] init]; self.alertview.backgroundcolor = [uicolor whitecolor]; self.alertview.layer.cornerradius = 5.0; self.alertview.frame = cgrectmake(0, 0, alertw, 100); self.alertview.layer.position = self.center; if (title) { self.titlelbl = [self getadaptivelable:cgrectmake(2*xlspace, 2*xlspace, alertw-4*xlspace, 20) andtext:title andistitle:yes]; self.titlelbl.textalignment = nstextalignmentcenter; [self.alertview addsubview:self.titlelbl]; cgfloat titlew = self.titlelbl.bounds.size.width; cgfloat titleh = self.titlelbl.bounds.size.height; self.titlelbl.frame = cgrectmake((alertw-titlew)/2, 2*xlspace, titlew, titleh); } if (message) { self.msglbl = [self getadaptivelable:cgrectmake(xlspace, cgrectgetmaxy(self.titlelbl.frame)+xlspace, alertw-2*xlspace, 20) andtext:message andistitle:no]; self.msglbl.textalignment = nstextalignmentcenter; [self.alertview addsubview:self.msglbl]; cgfloat msgw = self.msglbl.bounds.size.width; cgfloat msgh = self.msglbl.bounds.size.height; self.msglbl.frame = self.titlelbl?cgrectmake((alertw-msgw)/2, cgrectgetmaxy(self.titlelbl.frame)+xlspace, msgw, msgh):cgrectmake((alertw-msgw)/2, 2*xlspace, msgw, msgh); } self.lineview = [[uiview alloc] init]; self.lineview.frame = self.msglbl?cgrectmake(0, cgrectgetmaxy(self.msglbl.frame)+2*xlspace, alertw, 1):cgrectmake(0, cgrectgetmaxy(self.titlelbl.frame)+2*xlspace, alertw, 1); self.lineview.backgroundcolor = [uicolor colorwithwhite:0.8 alpha:0.6]; [self.alertview addsubview:self.lineview]; //两个按钮 if (cancletitle && suretitle) { self.canclebtn = [uibutton buttonwithtype:uibuttontypesystem]; self.canclebtn.frame = cgrectmake(0, cgrectgetmaxy(self.lineview.frame), (alertw-1)/2, 40); [self.canclebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstatenormal]; [self.canclebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstateselected]; [self.canclebtn settitle:cancletitle forstate:uicontrolstatenormal]; //[self.canclebtn settitlecolor:[uicolor graycolor] forstate:uicontrolstatenormal]; self.canclebtn.tag = 1; [self.canclebtn addtarget:self action:@selector(buttonevent:) forcontrolevents:uicontroleventtouchupinside]; uibezierpath *maskpath = [uibezierpath bezierpathwithroundedrect:self.canclebtn.bounds byroundingcorners:uirectcornerbottomleft cornerradii:cgsizemake(5.0, 5.0)]; cashapelayer *masklayer = [[cashapelayer alloc] init]; masklayer.frame = self.canclebtn.bounds; masklayer.path = maskpath.cgpath; self.canclebtn.layer.mask = masklayer; [self.alertview addsubview:self.canclebtn]; } if (cancletitle && suretitle) { self.verlineview = [[uiview alloc] init]; self.verlineview.frame = cgrectmake(cgrectgetmaxx(self.canclebtn.frame), cgrectgetmaxy(self.lineview.frame), 1, 40); self.verlineview.backgroundcolor = [uicolor colorwithwhite:0.8 alpha:0.6]; [self.alertview addsubview:self.verlineview]; } if(suretitle && cancletitle){ self.surebtn = [uibutton buttonwithtype:uibuttontypesystem]; self.surebtn.frame = cgrectmake(cgrectgetmaxx(self.verlineview.frame), cgrectgetmaxy(self.lineview.frame), (alertw-1)/2+1, 40); [self.surebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstatenormal]; [self.surebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstateselected]; [self.surebtn settitle:suretitle forstate:uicontrolstatenormal]; //[self.surebtn settitlecolor:[uicolor whitecolor] forstate:uicontrolstatenormal]; self.surebtn.tag = 2; [self.surebtn addtarget:self action:@selector(buttonevent:) forcontrolevents:uicontroleventtouchupinside]; uibezierpath *maskpath = [uibezierpath bezierpathwithroundedrect:self.surebtn.bounds byroundingcorners:uirectcornerbottomright cornerradii:cgsizemake(5.0, 5.0)]; cashapelayer *masklayer = [[cashapelayer alloc] init]; masklayer.frame = self.surebtn.bounds; masklayer.path = maskpath.cgpath; self.surebtn.layer.mask = masklayer; [self.alertview addsubview:self.surebtn]; } //只有取消按钮 if (cancletitle && !suretitle) { self.canclebtn = [uibutton buttonwithtype:uibuttontypesystem]; self.canclebtn.frame = cgrectmake(0, cgrectgetmaxy(self.lineview.frame), alertw, 40); [self.canclebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstatenormal]; [self.canclebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstateselected]; [self.canclebtn settitle:cancletitle forstate:uicontrolstatenormal]; //[self.canclebtn settitlecolor:[uicolor graycolor] forstate:uicontrolstatenormal]; self.canclebtn.tag = 1; [self.canclebtn addtarget:self action:@selector(buttonevent:) forcontrolevents:uicontroleventtouchupinside]; uibezierpath *maskpath = [uibezierpath bezierpathwithroundedrect:self.canclebtn.bounds byroundingcorners:uirectcornerbottomleft | uirectcornerbottomright cornerradii:cgsizemake(5.0, 5.0)]; cashapelayer *masklayer = [[cashapelayer alloc] init]; masklayer.frame = self.canclebtn.bounds; masklayer.path = maskpath.cgpath; self.canclebtn.layer.mask = masklayer; [self.alertview addsubview:self.canclebtn]; } //只有确定按钮 if(suretitle && !cancletitle){ self.surebtn = [uibutton buttonwithtype:uibuttontypesystem]; self.surebtn.frame = cgrectmake(0, cgrectgetmaxy(self.lineview.frame), alertw, 40); [self.surebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstatenormal]; [self.surebtn setbackgroundimage:[self imagewithcolor:[uicolor colorwithred:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forstate:uicontrolstateselected]; [self.surebtn settitle:suretitle forstate:uicontrolstatenormal]; //[self.surebtn settitlecolor:[uicolor graycolor] forstate:uicontrolstatenormal]; self.surebtn.tag = 2; [self.surebtn addtarget:self action:@selector(buttonevent:) forcontrolevents:uicontroleventtouchupinside]; uibezierpath *maskpath = [uibezierpath bezierpathwithroundedrect:self.surebtn.bounds byroundingcorners:uirectcornerbottomleft | uirectcornerbottomright cornerradii:cgsizemake(5.0, 5.0)]; cashapelayer *masklayer = [[cashapelayer alloc] init]; masklayer.frame = self.surebtn.bounds; masklayer.path = maskpath.cgpath; self.surebtn.layer.mask = masklayer; [self.alertview addsubview:self.surebtn]; } //计算高度 cgfloat alertheight = cancletitle?cgrectgetmaxy(self.canclebtn.frame):cgrectgetmaxy(self.surebtn.frame); self.alertview.frame = cgrectmake(0, 0, alertw, alertheight); self.alertview.layer.position = self.center; [self addsubview:self.alertview]; } return self; } #pragma mark - 弹出 - - (void)showxlalertview { uiwindow *rootwindow = [uiapplication sharedapplication].keywindow; [rootwindow addsubview:self]; [self creatshowanimation]; } - (void)creatshowanimation { self.alertview.layer.position = self.center; self.alertview.transform = cgaffinetransformmakescale(0.90, 0.90); [uiview animatewithduration:0.25 delay:0 usingspringwithdamping:0.8 initialspringvelocity:1 options:uiviewanimationoptioncurvelinear animations:^{ self.alertview.transform = cgaffinetransformmakescale(1.0, 1.0); } completion:^(bool finished) { }]; } #pragma mark - 回调 -设置只有2 -- > 确定才回调 - (void)buttonevent:(uibutton *)sender { if (sender.tag == 2) { if (self.resultindex) { self.resultindex(sender.tag); } } [self removefromsuperview]; } -(uilabel *)getadaptivelable:(cgrect)rect andtext:(nsstring *)contentstr andistitle:(bool)istitle { uilabel *contentlbl = [[uilabel alloc] initwithframe:rect]; contentlbl.numberoflines = 0; contentlbl.text = contentstr; contentlbl.textalignment = nstextalignmentcenter; if (istitle) { contentlbl.font = [uifont boldsystemfontofsize:16.0]; }else{ contentlbl.font = [uifont systemfontofsize:14.0]; } nsmutableattributedstring *mattrstr = [[nsmutableattributedstring alloc] initwithstring:contentstr]; nsmutableparagraphstyle *mparastyle = [[nsmutableparagraphstyle alloc] init]; mparastyle.linebreakmode = nslinebreakbycharwrapping; [mparastyle setlinespacing:3.0]; [mattrstr addattribute:nsparagraphstyleattributename value:mparastyle range:nsmakerange(0,[contentstr length])]; [contentlbl setattributedtext:mattrstr]; [contentlbl sizetofit]; return contentlbl; } -(uiimage *)imagewithcolor:(uicolor *)color { cgrect rect = cgrectmake(0.0f, 0.0f, 1.0f, 1.0f); uigraphicsbeginimagecontext(rect.size); cgcontextref context = uigraphicsgetcurrentcontext(); cgcontextsetfillcolorwithcolor(context, [color cgcolor]); cgcontextfillrect(context, rect); uiimage *theimage = uigraphicsgetimagefromcurrentimagecontext(); uigraphicsendimagecontext(); return theimage; } @end

xlalertview *xlalertview = [[xlalertview alloc] initwithtitle:@"自定义uialertview" message:@"不喜勿喷，大神多多指导。不胜感激" surebtn:@"确认" canclebtn:@"取消"]; xlalertview.resultindex = ^(nsinteger index){ //回调---处理一系列动作 }; [xlalertview showxlalertview];