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目录
1、获取键盘的高度
2、创建键盘上的完成按钮
3、设置button按钮中的文字居中方式
4、自己绘制一张背景图
1、获取键盘的高度
NSDictionary *userInfo = [aNotification
userInfo];
NSValue *aValue = [userInfo
objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [aValue
CGRectValue];
self.keyboardEndHeight = keyboardRect.size.height;
self.keyboardEndHeight 自定义的
2、创建键盘上的完成按钮
- (UIToolbar *)createToolbar
{
UIToolbar *toolBar = [[UIToolbar
alloc] initWithFrame:CGRectMake(0,
0, KSCREENSIZE.width,
44)];
UIBarButtonItem *space = [[UIBarButtonItem
alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:nil
action:nil];
UIBarButtonItem *done = [[UIBarButtonItem
alloc] initWithTitle:@"完成"
style:UIBarButtonSystemItemDone
target:self
action:@selector(textFieldDone)];
toolBar.items =
@[space, done];
return toolBar;
}
- (void)textFieldDone
{
[[self
findFirstResponder] resignFirstResponder];
}
3、设置button按钮中的文字居中方式
[btn setContentHorizontalAlignment:UIControlContentHorizontalAlignmentRight];
UIToolbar *toolBar = [self
createToolbar];
textField.inputAccessoryView = toolBar;
4、自己绘制一张背景图
// 不同情况的背景图
可以设置高亮状态下的颜色
+ (UIImage *)backgroundImageForButtonWithBounds:(CGRect)bounds normalColor:(UIColor*)normalColor
hightedColor:(UIColor*)hightedColor isShenqing:(BOOL)shenqing
{//自绘了一张背景图
CGRect canvasRect = bounds;
CGRect paintingRect =
CGRectMake(0,
0, canvasRect.size.width, canvasRect.size.height);;
UIGraphicsBeginImageContext(canvasRect.size);
CGContextRef context =
UIGraphicsGetCurrentContext();
if (shenqing) {
CGContextSetFillColorWithColor(context, [normalColor
CGColor]);
} else {
CGContextSetFillColorWithColor(context, [hightedColor
CGColor]);
}
CGContextFillRect(context, paintingRect);
UIImage *image =
UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
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