改变键盘的颜色

1.只有这2种数字键盘才有效果。UIKeyboardTypeNumberPad，UIKeyboardTypePhonePad
2. 。keyboardAppearance ＝ UIKeyboardAppearanceAlert

1. - (void)textViewDidBeginEditing:(UITextView *)textView{
2.     NSArray *ws = [[UIApplication sharedApplication] windows];
3.     for(UIView *w in ws){
4.         NSArray *vs = [w subviews];
5.         for(UIView *v in vs){
6.             if([[NSString stringWithUTF8String:object_getClassName(v)] isEqualToString:@"UIKeyboard"]){
7.                 v.backgroundColor = [UIColor redColor];
8.             }
9.         }
10.     }
11. }

图片:改变键盘颜色.png