设置表情键盘视图

有时候开发的时候可能需要做表情键盘，以前都是网上找的demo很多时候并不能很好的适合自己要做的开发项目，就想着自己写一个表情键盘的视图，代码如下。

NSMutableArray *temp = [[NSMutableArray alloc] init];

    for (int i = 0;i<105;i++){
        //取出图片的UIImage
        UIImage *face = [UIImage imageNamed:[NSString stringWithFormat:@"%d.png",i]];
        NSMutableDictionary *dicFace = [NSMutableDictionary dictionary];

        [dicFace setValue:face forKey:[NSString stringWithFormat:@"[/%d]",i]];
        
        [temp addObject:dicFace];
    }
    self.phraseArray = temp;

//将表情包导入工程之后，可以将表情包这样取出来放到数组里暂时保存起来，在表情键盘呼出时再将需要的表情，便历出来加载到表情键盘上

//键盘视图加载似的方法- (void)showEmojiView{
   
    int xIndex = 0;
    
    int yIndex = 0;
   
    int emojiRangeArray[12] = {0,10,20,30,40,50,60,70,80,90,100,104};
   
    for (int j = 0 ; j<12 ; j++ ) {
       
        int startIndex = emojiRangeArray[j];
        
        int endIndex = emojiRangeArray[j+1];
       
        for (int i = startIndex ; i<= endIndex ; i++ ) {
            
            UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
            
            button.frame = CGRectMake(10 + xIndex*32, 10 + yIndex*32, 32.0f, 32.0f);
            NSMutableDictionary *tempdic = [self.phraseArray objectAtIndex:i];
//            if (i<10){
//            UIImage *tempImage = [tempdic valueForKey:[NSString stringWithFormat:@"</00%d>",i]];
//            [button setBackgroundImage:tempImage forState:UIControlStateNormal];
//            } else if (i<100){
//                UIImage *tempImage = [tempdic valueForKey:[NSString stringWithFormat:@"</0%d>",i]];
//                [button setBackgroundImage:tempImage forState:UIControlStateNormal];
//            }else
//            {
                UIImage *tempImage = [tempdic valueForKey:[NSString stringWithFormat:@"[/%d]",i]];
                [button setBackgroundImage:tempImage forState:UIControlStateNormal];
//            }
            button.tag = i;
            
            [button addTarget:self action:@selector(didSelectAFace:)forControlEvents:UIControlEventTouchUpInside];
            
            [_faceScrollView addSubview:button];
           
            xIndex += 1;
            
            if (xIndex == 9) {
                
                xIndex = 0;
                
                yIndex += 1;
                
            }
            
        }
        
    }
    
    [_faceScrollView setContentSize:CGSizeMake(300.0f, 12 + (yIndex+1)*32)];
}
//点击表情时调用的方法

-(void)didSelectAFace:(id)sender
{
    UIButton *tempbtn = (UIButton *)sender;
    NSMutableDictionary *tempdic = [self.phraseArray objectAtIndex:tempbtn.tag];
    NSArray *temparray = [tempdic allKeys];
    NSString *faceStr= [NSString stringWithFormat:@"%@",[temparray objectAtIndex:0]];
    
    self.chatViewController.phraseString = faceStr;
    [self.chatViewController.messageString appendString:self.chatViewController.phraseString];
    [self dismissModalViewControllerAnimated:YES];
}