1、安裝

pod  "IQKeyboardManager" #ios8 and later

2、使用

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    IQKeyboardManager *manager = [IQKeyboardManager sharedManager];
   //默認(rèn)為YES，關(guān)閉為NO
    manager.enable = YES;
   //鍵盤彈出時，點擊背景，鍵盤收回
    manager.shouldResignOnTouchOutside = YES;
   //如果YES，那么使用textField的tintColor屬性為IQToolbar，否則顏色為黑色。默認(rèn)是否定的。
    manager.shouldToolbarUsesTextFieldTintColor = YES;
   //如果YES，則在IQToolbar上添加textField的占位符文本。默認(rèn)是肯定的。
    manager.shouldShowToolbarPlaceholder = YES;
   //設(shè)置IQToolbar按鈕的文字
    manager.toolbarDoneBarButtonItemText = @"完成";
    //隱藏鍵盤上面的toolBar,默認(rèn)是開啟的
   manager.enableAutoToolbar = NO;

    return YES;
}