如何更改iOS上的UISearchBar組件的內(nèi)部背景顏色

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1. 使用此代碼改變搜索欄“UITextField將backgroundImageUITextField *searchField;
NSUInteger numViews = [searchBar.subviews count];
for(int i = 0; i < numViews; i++) {
if([[searchBar.subviews objectAtIndex:i] isKindOfClass:[UITextField class]]) { //conform?
searchField = [searchBar.subviews objectAtIndex:i];
}
}
if(!(searchField == nil)) {
searchField.textColor = [UIColor whiteColor];
[searchField setBackground: [UIImage p_w_picpathNamed:@"yourImage"]];//just add here gray p_w_picpath which you display in quetion
[searchField setBorderStyle:UITextBorderStyleNone];
}

該波紋管代碼的變化UISearchBarIcon UIImageView *searchIcon = [[UIImageView alloc] initWithImage:[UIImage p_w_picpathNamed:@"yourSearchBarIconImage"]];
searchIcon.frame = CGRectMake(10, 10, 24, 24);
[searchBar addSubview:searchIcon];
[searchIcon release];

也為改變searcBar圖標搜索欄的你哪些可用的iOS 5 +- (void)setImage:(UIImage *)iconImage forSearchBarIcon:(UISearchBarIcon)icon state:(UIControlState)state

在這里你可以設置4種UISearchBarIcon即UISearchBarIconBookmarkUISearchBarIconClearUISearchBarIconResultsListUISearchBarIconSearch我希望這可以幫助您... 

2. 根據(jù)的UISearchBar 你這個函數(shù)適用于iOS 5.0 +。- (void)setSearchFieldBackgroundImage:(UIImage *)backgroundImage forState:(UIControlState)state

用例：[mySearchBar setSearchFieldBackgroundImage:myImage forState:UIControlStateNormal];

可悲的是，在iOS 4的你需要恢復到較少見其他的答案。 

3. 只是自定義文本字段本身。 我只是這樣做的，它工作正常（的iOS 7）。UITextField *txfSearchField = [_searchBar valueForKey:@"_searchField"];
txfSearchField.backgroundColor = [UIColor redColor];

這樣，您就不需要創(chuàng)建一個圖像，它的大小，等.. 

4. 對于只改變顏色：searchBar.tintColor = [UIColor redColor];

為應用背景圖像：[self.searchBar setSearchFieldBackgroundImage:
[UIImage p_w_picpathNamed:@"Searchbox.png"]
forState:UIControlStateNormal];

5. 私有API的：for (UIView* subview in [[self.searchBar.subviews lastObject] subviews]) {
if ([subview isKindOfClass:[UITextField class]]) {
UITextField *textField = (UITextField*)subview;
[textField setBackgroundColor:[UIColor redColor]];
}
}