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TUIKit/TUIGroup/UI_Classic/UI/TUISearchGroupViewController.m

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+//
+//  TUISearchGroupViewController.m
+//  TUIKitDemo
+//
+//  Created by annidyfeng on 2019/5/20.
+//  Copyright © 2019 Tencent. All rights reserved.
+//
+#import "TUISearchGroupViewController.h"
+#import <TIMCommon/TIMDefine.h>
+#import <TUICore/TUIThemeManager.h>
+#import "TUIGroupRequestViewController.h"
+
+@implementation UISearchController (Leak)
+
+- (BOOL)willDealloc {
+    return NO;
+}
+
+@end
+
+@interface AddGroupItemView : UIView
+@property(nonatomic) V2TIMGroupInfo *groupInfo;
+@end
+
+@implementation AddGroupItemView {
+    UILabel *_idLabel;
+    UIView *_line;
+}
+
+- (id)initWithFrame:(CGRect)frame {
+    self = [super initWithFrame:frame];
+
+    _idLabel = [[UILabel alloc] initWithFrame:CGRectZero];
+    [self addSubview:_idLabel];
+
+    _line = [[UIView alloc] initWithFrame:CGRectZero];
+    _line.backgroundColor = [UIColor grayColor];
+    [self addSubview:_line];
+
+    return self;
+}
+
+- (void)setGroupInfo:(V2TIMGroupInfo *)groupInfo {
+    if (groupInfo) {
+        if (groupInfo.groupName.length > 0) {
+            _idLabel.text = [NSString stringWithFormat:@"%@ (group id: %@)", groupInfo.groupName, groupInfo.groupID];
+        } else {
+            _idLabel.text = groupInfo.groupID;
+        }
+        _idLabel.mm_sizeToFit().tui_mm_center().mm_left(8);
+        _line.mm_height(1).mm_width(self.mm_w).mm_bottom(0);
+        _line.hidden = NO;
+    } else {
+        _idLabel.text = @"";
+        _line.hidden = YES;
+    }
+
+    _groupInfo = groupInfo;
+}
+
+@end
+
+@interface TUISearchGroupViewController () <UISearchBarDelegate>
+
+@property(nonatomic, strong) AddGroupItemView *userView;
+;
+
+@end
+
+@interface TUISearchGroupViewController () <UISearchControllerDelegate, UISearchBarDelegate>
+
+@end
+
+@implementation TUISearchGroupViewController
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    self.title = TIMCommonLocalizableString(ContactsJoinGroup);
+
+    self.view.backgroundColor = TIMCommonDynamicColor(@"controller_bg_color", @"#F2F3F5");
+
+    self.edgesForExtendedLayout = UIRectEdgeNone;
+    self.automaticallyAdjustsScrollViewInsets = NO;
+    self.definesPresentationContext = YES;
+
+    self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
+    self.searchController.delegate = self;
+    self.searchController.dimsBackgroundDuringPresentation = NO;
+    _searchController.searchBar.placeholder = @"group ID";
+    _searchController.searchBar.delegate = self;
+    [self.view addSubview:_searchController.searchBar];
+    [self setSearchIconCenter:YES];
+
+    self.userView = [[AddGroupItemView alloc] initWithFrame:CGRectZero];
+    [self.view addSubview:self.userView];
+
+    UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleUserTap:)];
+    [self.userView addGestureRecognizer:singleFingerTap];
+}
+
+- (void)setSearchIconCenter:(BOOL)center {
+    if (center) {
+        CGSize size = [self.searchController.searchBar.placeholder sizeWithAttributes:@{NSFontAttributeName : [UIFont systemFontOfSize:14.0]}];
+        CGFloat width = size.width + 60;
+        [self.searchController.searchBar setPositionAdjustment:UIOffsetMake(0.5 * (self.searchController.searchBar.bounds.size.width - width), 0)
+                                              forSearchBarIcon:UISearchBarIconSearch];
+    } else {
+        [self.searchController.searchBar setPositionAdjustment:UIOffsetZero forSearchBarIcon:UISearchBarIconSearch];
+    }
+}
+
+#pragma mark - UISearchControllerDelegate
+- (void)didPresentSearchController:(UISearchController *)searchController {
+    NSLog(@"didPresentSearchController");
+    [self.view addSubview:self.searchController.searchBar];
+
+    self.searchController.searchBar.mm_top([self safeAreaTopGap]);
+    self.userView.mm_top(self.searchController.searchBar.mm_maxY).mm_height(44).mm_width(Screen_Width);
+}
+
+- (void)willPresentSearchController:(UISearchController *)searchController {
+    [self setSearchIconCenter:NO];
+}
+
+- (void)willDismissSearchController:(UISearchController *)searchController {
+    [self setSearchIconCenter:YES];
+}
+
+- (CGFloat)safeAreaTopGap {
+    NSNumber *gap;
+    if (gap == nil) {
+        if (@available(iOS 11, *)) {
+            gap = @(self.view.safeAreaLayoutGuide.layoutFrame.origin.y);
+        } else {
+            gap = @(0);
+        }
+    }
+    return gap.floatValue;
+}
+
+- (void)didDismissSearchController:(UISearchController *)searchController {
+    NSLog(@"didDismissSearchController");
+    self.searchController.searchBar.mm_top(0);
+    self.userView.groupInfo = nil;
+}
+
+- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
+    self.searchController.active = YES;
+    return YES;
+}
+
+- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
+    self.searchController.active = NO;
+}
+
+- (void)handleUserTap:(id)sender {
+    if (self.userView.groupInfo) {
+        TUIGroupRequestViewController *frc = [[TUIGroupRequestViewController alloc] init];
+        frc.groupInfo = self.userView.groupInfo;
+        [self.navigationController pushViewController:frc animated:YES];
+    }
+}
+
+#pragma mark - UISearchBarDelegate
+
+- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
+    NSString *inputStr = searchBar.text;
+    [[V2TIMManager sharedInstance] getGroupsInfo:@[ inputStr ]
+        succ:^(NSArray<V2TIMGroupInfoResult *> *groupResultList) {
+          if (groupResultList.count > 0) {
+              V2TIMGroupInfoResult *result = groupResultList.firstObject;
+              if (0 == result.resultCode) {
+                  self.userView.groupInfo = result.info;
+              } else {
+                  self.userView.groupInfo = nil;
+              }
+          } else {
+              self.userView.groupInfo = nil;
+          }
+        }
+        fail:^(int code, NSString *desc) {
+          self.userView.groupInfo = nil;
+        }];
+}
+
+@end