Custom navigation bar buttons encountered in actual iOS programming, resulting in a workaround for gesture return invalidation

<span id="Label3"></p><p><p>1\ often need to customize the buttons on the navigation bar during the actual programming process, as well As:</p></p><p><p><span style="color: #008000;">-(instancetype) initwithcustomview: (UIView *) customview;</span></p></p><p><p><span style="color: #000000;">however, using this method may cause ios7,8 's gesture to fail, and the workaround is to add the following code to the <span style="color: #339966;">viewdidload</span> method in the custom navigation bar</span></p></p><p><p><span style="color: #ff0000;">Note: The push method can be used only with the system navigation bar, or the navigation bar that inherits from the system, and comes with a return gesture.</span></p></p><pre><pre>-(<span style="color: #0000ff;">void</span><span style="color: #000000;">) viewdidload{ [super viewdidload]; </span> <span style="color: #0000ff;">typeof</span> (self) weakself = self<span style="color: #000000;"> ; </span> <span style="color: #008000;">//</span> <span style="color: #008000;">fixed issue where sliding returned to invalid due to custom navigation bar button</span> <span style="color: #0000ff;">if</span> <span style="color: #000000;">([self respondstoselector: @selector (interactivepopgesturerecognizer)]) { Self.interactivepopgesturerecognizer.</span> <span style="color: #0000ff;">delegate</span> =<span style="color: #000000;"> weakself; }</span> <span style="color: #000000;"> }</span></pre></pre><p><p>Add the above string of code, then run, return gestures can be used normally.</p></p><p><p>2\ also teach you a practical way, when push multiple interface navigation bar <span style="color: #ff0000;">return button</span> , you can override the push method in the custom <span style="color: #339966;">Uinavigationcontroller</span> , intercept the push operation,</p></p><p><p>And also set the Tabbar hidden after push (if necessary), the code is as Follows:</p></p><pre><span style="color: #008000;"><span style="color: #008000;">/*</span></span><span style="color: #008000;">* <span style="color: #008000;">* Override this method purpose: ability to intercept all push-in controllers * * @param viewcontroller upcoming push-in Controller</span></span><span style="color: #008000;"><span style="color: #008000;">*/</span></span>- (<span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span>) Pushviewcontroller: (uiviewcontroller *<span style="color: #000000;"><span style="color: #000000;">) Viewcontroller animated: (BOOL) animated{</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">if</span></span>(self.viewControllers.count ><span style="color: #800080;"><span style="color: #800080;">0</span></span>) {<span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">at this point the push comes in the controller viewcontroller, not the first sub-controller (not the root controller)</span></span> <span style="color: #008000;"><span style="color: #008000;">/*</span></span><span style="color: #008000;"><span style="color: #008000;">automatically show and hide Tabbar</span></span><span style="color: #008000;"><span style="color: #008000;">*/</span></span><span style="color: #000000;"><span style="color: #000000;">viewcontroller.hidesbottombarwhenpushed</span></span>=<span style="color: #000000;"><span style="color: #000000;">YES; </span></span><span style="color: #008000;"><span style="color: #008000;">/*</span></span><span style="color: #008000;"><span style="color: #008000;">set the contents of the navigation bar above</span></span><span style="color: #008000;"><span style="color: #008000;">*/</span></span> <span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">set the Back button on the left</span></span><span style="color: #000000;"><span style="color: #000000;">ViewController.navigationItem.leftBarButtonItem</span></span>= [uibarbuttonitem itemwithtarget:self action: @selector (back) image:<span style="color: #800000;"><span style="color: #800000;">@"</span></span><span style="color: #800000;"><span style="color: #800000;">Home_nav_bar_back_icon</span></span><span style="color: #800000;"><span style="color: #800000;">"</span></span>Highimage:<span style="color: #800000;"><span style="color: #800000;">@"</span></span><span style="color: #800000;"><span style="color: #800000;">Home_nav_bar_back_icon</span></span><span style="color: #800000;"><span style="color: #800000;">"</span></span><span style="color: #000000;"><span style="color: #000000;">];</span></span><span style="color: #000000;"><span style="color: #000000;">} [super Pushviewcontroller:viewcontroller animated:animated];}</span></span>- (<span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">) back{</span></span><span style="color: #008000;"><span style="color: #008000;">//</span></span><span style="color: #008000;"><span style="color: #008000;">because self is a navigation controller, self.navigationcontroller here is Nil.</span></span><span style="color: #000000;"><span style="color: #000000;">[self popviewcontrolleranimated:yes];}</span></span></pre><p><p></p></p><p><p>Custom navigation bar buttons encountered in actual iOS programming, resulting in a workaround for gesture return invalidation</p></p></span>