更改UIDocumentInteractionController导航栏的颜色

Question

有没有办法更改UIDocumentInteractionController navigationbar的色调/背景颜色？

Answer 1

@DOOManics实施的更清洁版本：

- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
    return [self navigationController];
}

Answer 2

如果将UIDocumentInteractionController放到UINavigationController上，它会自动将颜色设为导航栏。这可能是你的root视图navcontroller。

使用documentInteractionControllerViewControllerForPreview方法执行此操作：

- (UIViewController *) documentInteractionControllerViewControllerForPreview: (UIDocumentInteractionController *) controller
{
    // Use the rootViewController here so that the preview is pushed onto the navbar stack
    MyAppDelegate *appDelegate = (MyAppDelegate *)[[UIApplication sharedApplication] delegate];
    return appDelegate.window.rootViewController;
}

Answer 3

[[UINavigationBar appearance] setTintColor:[UIColor colorWithRed:107.0/256.0 green:145.0/256.0 blue:35.0/256.0 alpha:1.0]];

将此代码放在Appdelegate的didFinisLaunching方法中。它将改变整个应用程序的导航栏颜色。

Answer 4

试试这段代码：

- (void)openEC:(NSURL*)url {  
     [UINavigationBar appearance].tintColor = [UIColor blueColor];  
     docController = [UIDocumentInteractionController interactionControllerWithURL:url];  
    [docController setDelegate:self];  
    [docController  presentOptionsMenuFromRect:self.view.bounds inView:self.view animated:YES];  
}

- (void)documentInteractionControllerDidDismissOptionsMenu:(UIDocumentInteractionController *)controller {  
    [UINavigationBar appearance].tintColor = [UIColor whiteColor];  
}

Answer 5

如果您不使用navigationController，则可以在UIDocumentInteractionController的UIVocumentInteractionController的UIViewController视图上设置正确的设置，从而在UIDocumentInteractionController中设置导航栏颜色。

让我们假设你有UIViewController viewController1（从这里你可以启动UIDocumentInteractionController），在故事板中有一个View1。

打开故事板后，从viewController1上的元素列表中单击View1，然后转到＆＃34;属性检查器＆＃34;在右侧。之后将在您的UIDocumentInteractionController中使用Background和Tint设置。

然后你可以使用：

- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
    return self;
}

请注意，在viewController1中，您可能有一个具有不同属性的导航栏，这些将不会在UIDocumentInteractionController中使用。

Answer 6

@dvdfrddsgn实现的快速版本

尝试一下：（您需要实现UIDocumentInteractionControllerDelegate）

final topAppBar = 
    Container(
      height: divheight/2*0.1,
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisAlignment: MainAxisAlignment.start,
        children: <Widget>[
          Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           mainAxisAlignment: MainAxisAlignment.start,
           children: <Widget>[
          Container(
           padding: EdgeInsets.all(8.0),
           child: Text("tRADING SOLUTION",
           textAlign: TextAlign.left,
           style: TextStyle(
             color: Colors.white,
             fontSize: 15,
             fontWeight: FontWeight.w600
           ),
           ), 
           ), 

           ],
         ),
         Column(
           //check container widget
           crossAxisAlignment: CrossAxisAlignment.start,
           mainAxisAlignment: MainAxisAlignment.start,
           children: <Widget>[
             Container(
               height: 12,
             ),
          Container(
            padding:EdgeInsets.all(5.0),
            child:  Text("pOWERED BY fLEXI aNALYSIS",
           textDirection: TextDirection.rtl,
            textAlign: TextAlign.justify,
           style: TextStyle(
             color: Colors.white,
             fontSize: 10,
             fontWeight: FontWeight.w600,
             fontStyle: FontStyle.italic
           ),
           ), 
           ),


          ],
         ),
],
      ),

    );
    final customAppBar = Container(
      height: divheight/2*0.15,
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisAlignment: MainAxisAlignment.start,
        children: <Widget>[
          Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           mainAxisAlignment: MainAxisAlignment.start,
           children: <Widget>[
          Container(
          padding: EdgeInsets.all(10.0),
          child: Icon(
            Icons.arrow_back,
            size: 30.0,
            color: Colors.white,),
        ),
           ],
         ),
         Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           mainAxisAlignment: MainAxisAlignment.start,
           children: <Widget>[
             Container(
               height: 7,
             ),
          Container(
            padding:EdgeInsets.all(5.0),
            child:  Text("Technical Analysis",
           textDirection: TextDirection.rtl,
            textAlign: TextAlign.justify,
           style: TextStyle(
             color: Colors.white,
             fontSize: 20,
             fontWeight: FontWeight.w600,
             fontStyle: FontStyle.normal
           ),
           ), 
           ),

        ],
         ),
         Container(
           padding:EdgeInsets.only(left: 100.0),
          child: 
          IconButton(
          icon: Icon(Icons.list),
          onPressed: () {},
        ),
        )
      ],
      ),      
    );

final makeBody = 
Expanded(
      //decoration: BoxDecoration(color: Color.fromRGBO(58, 66, 86, 1.0)),
      child: 
        ListView.builder(
        scrollDirection: Axis.vertical,
        shrinkWrap: true,
        itemCount: lessons.length,
        itemBuilder: (BuildContext context, int index) {
        //get the data from db here through method
        return makeCard(lessons[index]);
        //makeCard(lessons[index]);      
        },
      ),
);

ListView _makeBody() =>ListView(
children: <Widget>[
    topAppBar,
    customAppBar,
    makeBody,
],
);

Scaffold(
       backgroundColor: Color.fromRGBO(58, 66, 86, 1.0),
        body: _makeBody(),
);