Questions tagged as 'android'

Tagged questions
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Error android.R [duplicated]

Hello, when I open android studio, the Rs turn red and the values.XML file opens. and I get some errors as I can solve this.     
asked by 17.10.2017 / 17:06
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Block user in auth firebase and do not let him enter the APP

Good, I have a login made in Android to enter with Gmail keeping the authentication in firebase, the app enters ok and creates the authentication in fire generating the corresponding User UID. Now I see that in the options of each user I have th...
asked by 11.10.2017 / 21:16
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Error modifying an object within a cycle

As the title says, I have a problem when trying to modify an attribute of an object at the time of being traversed; what I do is create a cycle to go through a list, within this cycle I create an object which I will fill from a SQLite database,...
asked by 12.10.2017 / 01:45
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Show photos SD android Studio

Good afternoon, I have a problem with the code that I expose acontinuacion, the code works perfectly at level api 19 of my cell phone and level api 26 from the emulator, the inconvenience as such is that in api level 22 and 24 that are others ce...
asked by 11.10.2017 / 20:42
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By 2 php queries can I invoke services (json) from android?

I hope you can support me with this question: how to call from android 2 queries (select) in php that show the data in the app. The php code is: ?php $idequivalente = $_REQUEST['idequivalente2']; $idUsuario2 = $_REQUEST['idUsuario2'];...
asked by 13.10.2017 / 01:02
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Listview and other elements are lost in some versions

I have a tab activity with a listview, which makes a query json. When I test it in the emulator everything works fine, however in some devices the listview is not displayed, which may be happening? This is my Res / Layout / movements <...
asked by 13.10.2017 / 03:22
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I do not get the icons that I have in my items in the menu I created in my ToolBar

I do not get the icons that I have in my menu in the menu I created and I get the following error that I guess does not let me take them out on the visa, they come out on the right side of the Preview but when I run the app does not only...
asked by 12.10.2017 / 23:26
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How to get from a listview (a string of one or more parameters) a parameter IN ANDROID

I want to make a calculation in a listview that contains two parameters, a string and a double. How could I get only the double? For this I have a spinner (with 5 parameters) that contains a remote BD that I get with an entity called Tbalimentos...
asked by 09.10.2017 / 13:45
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Android Studio: Create an image by trimming another saved

Good morning. I have a photo taken by the camera. Next I want a series of photos to be loaded in a RecyclerView. This RecyclerView is a list of CardViews. All this is implemented and working. The problem is that when you load each photo in th...
asked by 08.10.2017 / 18:14
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Android System WebView updated does not allow redirection

Good morning, everyone! I have an app that works with a webview and since the last update of Android System WebView, the links I have made in javascript stopped working, for example: window.location='index.php'; the rest of the javascript f...
asked by 05.10.2017 / 20:09