Questions tagged as 'android'

Tagged questions
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How to call a firebase data in Android Studio?

I need help, I'm doing a project where I keep a variable in the database of firebase, depending on this data I would send to another activity, I need to know how with an if (varibale > 60 or varibale < 60) send me to this activity.     
asked by 05.06.2018 / 22:53
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Data of a Spinner between activities

I would like to know how to make a Spinner reload the data I had when I come back from another Activity . That is, I have a Activity 1 with a Spinner and a button to go to Activity 2 , in that Activity 2 t...
asked by 05.06.2018 / 06:12
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How to save a text file in internal folder publishes Download?

As such, I have an app that generates a text file, but saves it in the app's directory, and I need to save it in the "Download" public folder of the same internal memory of my tablet (NOT SD card), Could you please help me, I've been looking for...
asked by 07.06.2018 / 14:57
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Query insert firebase data

I want to add an image plus the following attributes, names, category, phone, address, etc in the storage firebase, I already have the registration and the insertion of an attribute but I do not know how to save the following attributes to my fi...
asked by 06.06.2018 / 04:25
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How to compile satisfactorily an apk using visual studio and ionic cordova?

I am compiling my app but I get this error when I click on release will not let me compile the android apk I'm using visualstudio 2015 + cordova 6 + ionic 3 I give release to the device and it sends me the following error MSBUILD : cordo...
asked by 04.06.2018 / 05:34
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Fill listview

I am trying to fill listview from arralylist but it generates an error and closes the application: devices.get(0)=Cannot find local variable 'devices' If I comment the line listView.setAdapter(adapter); and do a debu...
asked by 06.06.2018 / 17:15
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Problem with external storage

I am making my first application and I still have some problems assimilating certain concepts. The idea is to store the data captured by the phone's accelerometer and store it in the external storage for later processing with a mathematical prog...
asked by 05.06.2018 / 16:36
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Android Studio 3.1.2 Emulator: Process finished with exit code -1073741511 (0xC0000139)

The Android Studio 3.1.2 emulator is not running Until a few days ago I could run it normally send screenshots, look for the error online and there is no information please, it's very urgent TOOLS SDK libraries installed Libraries of...
asked by 02.06.2018 / 21:07
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How to update the WindowManager view?

I try to create an animation with windowmanager in a service but when executing it throws me the exception: FATAL EXCEPTION: main                                                                                Process: com. {Name}, PID: 24454...
asked by 03.06.2018 / 15:23
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Users are unsubscribed when sending push notification of the one singal

I have linked my application developed with the QUASAR framework compiled for android with Cordova with One Signal looking for the way to push notifications although the application is closed, seems to succeed in making the link with the followi...
asked by 01.06.2018 / 01:34