Develop Reference

Android status bar show in Unty

I'm triyng to show the status bar in an Android phone using Unity. I have try this code:
void Start() {
this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
But an error appear;
Assets/Scenes/Control/control.cs(15,34): error CS0103: The name 'WindowManager' does not exist in the current context
Does I need to call or import another package? Some could help me with this detail. Thanks in advance.

You cannot use Android Java functions directly in Unity. You can only use whats available in Unity C Sharp. Unity doesn’t understand the method. Suggested workaround, use a ‘Slider’ UI element and manipulate it in a custom c sharp script. Complicated workaround create a custom Unity Plugin which calls the native Android method (possible but complex).

Android flutter's flutter_webview_plugin plugin's webview shows loading indicator and nothing else

I have been building a flutter android app with flutter_webview_plugin. My problem is when I use back button of android phone the web view rather than closing shows the loading indicator and nothing else.

To solve this problem we will have to listen both the webview's onDestroy status and navigator's pop-ability and then we will pop the webview route (screen).
To do this we will just write this code within the build method where the WebviewScaffold is returned.
flutterWebviewPlugin.onDestroy.listen((_){
if(Navigator.canPop(context)){
Navigator.of(context).pop();
}
});
Problem solved :)
note flutterWebviewPlugin is an object of FlutterWebviewPlugin declared out of the build method.

Unable to manipulate DOM content of Ionic Android app

angular.module("app.categories").controller("CategoryController", t), t.$inject = ["$scope", "$stateParams", "$state", "categoryManager"]
angular.module("app", ["ionic", ["app.home","app.products",...]);
angular.module("app").run(["$templateCache", function(t) {
t.put("app/scripts/about/about.html", '<ion- view>.....'),t.put("app/scripts/home/block.html", '<div>....')}]); //this is how the page content is loaded
I am running this app in the browser using Ionic ('Ionic serve' in the root directory). I am not able to run basic JavaScript on the page who's content has been loaded like this. After a timeout if DOMContentLoaded is called, the element is picked up but running the following only manipulated the id of element, not the html or the value
setTimeout(function(){
document.addEventListener('DOMContentLoaded',function(){
document.getElementById('customBox').id = 'changed'; //to test, id changes
document.getElementById('customBox').innerHtml = '<h1> test </h1>'; //does not change anything, no errors in console
document.getElementById('customBox').text= '<h1> test </h1>'; //does not change anything, no errors in console
document.getElementById('customBox').html= '<h1> test </h1>'; //does not change anything, no errors in console
});
},2000);
Is there anything that's preventing any change to the page content in the browser? How to make changes in the DOM content using simple JavaScript for this Ionic Android app?

Don't try to manipulate the html of an angular app directly unless you have written a custom directive. If you want to change the innerHtml use ng-bind-html on the div and just modify your scope.
Also, don't use setTimeout in an angular app, always use the $timeout or $interval services instead.
So your code, somewhere inside a controller, should just look like this:
$scope.testContent = '<h1> tet </h1>';
and the html:
<div id='customBox' ng-bind-html="testContent"></div>
Although the main reason your code doesn't work is that as soon as you've changed the id to "changed" all the other getElementById calls won't find the div.

Try using angular.element like this
angular.element( document.getElementById('customBox') ).innerHtml = '<h1> test </h1>';
Visit this link for detail https://docs.angularjs.org/api/ng/function/angular.element

Show image in TImage dynamically (at run time) without opendialog in c++ builder xe8

I want to show image (png,jpg etc) in dynamically created (as per requirement and fully through coding) TImage component, at runtime in C++ builder xe8 (not delphi). But I dont want to use opendialogbox (suggested in many web sites). I want to run this app on my android device. I tried to use LoadFromFile(), it crashes the app on android, but when I run this on windows, its running smoothly. I am just a beginner to c++ builder. So guys pls help. Thanx in advance for any kind of help.Here is what I did.
void __fastcall TForm1::TForm1(TComponent* Owner)
{
TImage* img = new TImage(this);
img->Parent = this;
img->Bitmap->LoadFromFile("D:\\res\\profile.png");
}

Did you see what is the error?
If you run the program with the provided by you code I assume the error would be that the file is not found, because there is no such directory "D:\" in android.
One way to set the path is to write a static path which points to your image. For example : "/storage/sdcard0/DCIM/Camera/MyImage.jpg";
The second way is to include the <System.IOUtils.hpp> header and to use some built-in functions like:
System::Ioutils::TPath::GetPicturesPath();
System::Ioutils::TPath::GetAlarmsPath();
You can check them out, they might be useful.

MyCustomWebViewClient undefined

I've made a new basic Android app that is just a plain WebView, but, I still managed to get an error to show up in my code:
The constructor AndroidMobileAppSampleActivity.MyCustomWebViewClient(null) is undefined
This is the code in my class:
http://pastebin.com/uEP6BGEV
I've tried to fix this by using a 'quick fix' that eclipse gave me, but then my app wouldn't start up anymore.

Replace:
localWebView.setWebViewClient(new MyCustomWebViewClient(null));
with:
localWebView.setWebViewClient(new MyCustomWebViewClient());
to avoid the need to define a constructor, particularly since you do not appear to be using one.