Questions tagged as 'android'

Tagged questions
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Delete image after uploading to ftp server

I have a question about the times when deleting files after uploading them to an FTP server. Let me explain, I have the following function, which uploads a file hosted on the mobile device to an FTP server and, when it finishes, calls a metho...
asked by 21.11.2018 / 17:58
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I have the following error when putting a togglebutton in androidStudio

When trying to put a togglebutton I get the following error: Invalid Region.Op - only INTERSECT and DIFFERENCE are allowed What can you owe?     
asked by 21.11.2018 / 11:03
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Show App with locked screen

Is it possible to show some tab of my application when the screen is blocked ?, something similar to the display of the music control panel when the screen is still blocked ... I want to show the change of some numbers in real time, but I do...
asked by 01.12.2018 / 14:28
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How to open any file saved in data / data using an intent?

I have files saved in data / data / mypackage / files / myfolder /. I try to open with the following method: public static void openFile(Context context, File url) throws IOException { // Create URI File file = url; Uri uri = Uri.f...
asked by 22.11.2018 / 02:50
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Use Bluetooth Device to connect to the internet

I'm making an application where I connect 2 devices: Device1 that I connect to Bluetooth to Device2 that already has internet via wifi. In Device2, activate the Tethering to share the internet with Device1, but to be able to complete it;...
asked by 22.11.2018 / 00:45
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Android Studio and Git with Firebase, different project for each Branch

I wanted to ask a question because I do not know how to continue. I have a project in Android Studio working with Firebase (I use the services Storage, realTime Database and Auth). In turn, I manage the versions of the project with Git. Now I wa...
asked by 23.11.2018 / 11:32
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How to place the title on a PreferenceScreen

In my app I have a configuration menu, for this I used PreferenceScree and I have this image with the configuration menu but without title: How can I do it to put a title and like in the image Here is my pref_setup_usb.xml &l...
asked by 16.11.2018 / 23:49
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Remove a PreferenceScreen from a List

To access this PreferenceScreen (Configuration) First I have to access a list and select the option and I just laza the options menu (Settings), I need that from the beginning the options menu is launched without having to enter t...
asked by 16.11.2018 / 22:40
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Pressing back does not return as expected

I run into the following problem: If I take a tour of my app and go through the layouts, when I click the button on the back of the mobile terminal, I see that it is not going backwards as I expect, but that it goes back on the path I have ma...
asked by 17.11.2018 / 09:17
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How can I create database in SD external storage

I would like to create the database directly in the file system directory where the internal files of my application are saved and access them with getFilesDir() . I am faced with the problem that when the database is created within the...
asked by 17.11.2018 / 18:12