自定义样式

/**
 * 相册/拍摄功能可直接调用UIImagePickerController，也可自定义界面，选择照片后调用接口发送图片消息即可
 */
QYCustomInputItem *photoItem = [[QYCustomInputItem alloc] init];
photoItem.normalImage = [UIImage imageNamed:@"icon_photo_normal"];
photoItem.selectedImage = [UIImage imageNamed:@"icon_photo_pressed"];
photoItem.text = @"相册";
photoItem.block = ^{ };

QYCustomInputItem *cameraItem = [[QYCustomInputItem alloc] init];
cameraItem.normalImage = [UIImage imageNamed:@"icon_camera_normal"];
cameraItem.selectedImage = [UIImage imageNamed:@"icon_camera_pressed"];
cameraItem.text = @"拍摄";
cameraItem.block = ^{ };

[[QYSDK sharedSDK] customUIConfig].customInputItems = @[photoItem, cameraItem];

/**
 *  消息下拉加载状态
 */
typedef NS_ENUM(NSInteger, QYMessagesLoadState) {
    QYMessagesLoadStateIdle,
    QYMessagesLoadStateWillLoad,
    QYMessagesLoadStateLoading,
};

[[[QYSDK sharedSDK] customUIConfig] setMessagesLoadImages:@[idleImg]
                                                 duration:0
                                                 forState:QYMessagesLoadStateIdle];
[[[QYSDK sharedSDK] customUIConfig] setMessagesLoadImages:@[willImg]
                                                 duration:0
                                                 forState:QYMessagesLoadStateWillLoad];
NSArray *loadingArray = @[loadingImg_1, loadingImg_2, loadingImg_3, loadingImg_4];
[[[QYSDK sharedSDK] customUIConfig] setMessagesLoadImages:loadingArray
                                                 duration:0.2
                                                 forState:QYMessagesLoadStateLoading];

UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:sessionViewController];
nav.modalPresentationStyle = UIModalPresentationFullScreen;
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(onBack:)];
sessionViewController.navigationItem.leftBarButtonItem = item;

[QYCustomUIConfig sharedInstance].showTopHeadImage=YES；

QYButtonInfo *button_1 = [[QYButtonInfo alloc] init];
button_1.buttonId = [NSNumber numberWithLongLong:1001];
button_1.title = @"按钮标题1";
QYButtonInfo *button_2 = [[QYButtonInfo alloc] init];
button_2.buttonId = [NSNumber numberWithLongLong:1002];
button_2.title = @"按钮标题2";
sessionViewController.buttonInfoArray = @[button_1, button_2];

/** 注册聊天界面顶部悬停视图 * @param hoverView 顶部悬停视图 @param height 视图高度 @param insets 视图边距，默认UIEdgeInsetsZero；top表示视图与导航栏底部距离，bottom设置无效，left/right分别表示距离屏幕左右边距 */
- (void)registerTopHoverView:(UIView *)hoverView height:(CGFloat)height marginInsets:(UIEdgeInsets)insets;

/** 销毁聊天界面顶部悬停视图 */
- (void)destroyTopHoverViewWithAnmation:(BOOL)animated duration:(NSTimeInterval)duration;

- (void)viewDidLoad {
    AppDelegate *delegate = [UIApplication sharedApplication].delegate;
    delegate.allowPort = YES;
}
-(void)viewWillDisappear:(BOOL)animated {
    AppDelegate *delegate = [UIApplication sharedApplication].delegate;
    delegate.allowPort = NO;
}

@property (nonatomic, assign) BOOL allowPort;

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
    return self.allowPort ? UIInterfaceOrientationMaskPortrait:UIInterfaceOrientationMaskLandscape;
}