OC 随意点frame navigationItem.title

以往弄得navigationItem.titleView都是居中在导航栏里，不能左右控制位置，今天得到了下面这种效果，实乃美滋滋。

// 导航栏里面的搜索框

    UIView *vv = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 44)];

    self.navigationItem.titleView = vv;

    search = [[SearchView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 44)];

    [vvaddSubview:search];

======================================================================

如果不设置vv的话，会是这样(好短哦)

    // 导航栏里面的搜索框

    search = [[SearchView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 44)];

    self.navigationItem.titleView = search;

//==================================================

过了几天后发现，上面的方法不凑效，问题在点进子页面后，titleView的frame又被更改了。

解决：

// 导航栏里面的搜索框

    search = [[SearchView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 44)];

    search.field.delegate = self;

    search.intrinsicContentSize = CGSizeMake(kScreenWidth, 44);

    self.navigationItem.titleView = search;

// 自定义的titleView，重写CGSizeintrinsicContentSize是关键

#import

@interfaceSearchView :UIView

@property (weak, nonatomic) IBOutlet UITextField *field;

@property(nonatomic,assign)CGSizeintrinsicContentSize;

@end

改成这样之后，很nice