Posts by felipe.rce • 1,969 points
66 posts
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3
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answer886
viewsQ: What is the Journal file on Android
When I created a database in Sqlite on Android, I noticed a file with the table name, followed by -Journal. What is it and what it’s for? Strange this file have different permissions and use a table…
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1
votes1
answer4434
viewsQ: Check if it contains Data in Sqlite table
How to check if an Android Sqlite table contains data?
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5
votes1
answer3064
viewsQ: Difference between null and clear on an Arraylist
What’s the difference between: arrayList.clear(); and arrayList = null; The two do not destroy all elements of Arraylist?
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4
votes3
answers1277
viewsQ: Differences between Padding and Margin
What’s the difference between using Padding and Margin in an Android view? When should I know which one to use?
androidasked felipe.rce 1,969 -
0
votes1
answer1075
viewsQ: How do I make my app use the default "Gallery" to pick up the path of an image?
I’ve seen some apps who uses the default Android Gallery to grab images from a certain folder, how do I do this? Is it possible some Android come without the Gallery app? Or the person remove?…
androidasked felipe.rce 1,969 -
1
votes1
answer192
viewsQ: setVisibility for an Imageview of a Grid
I have a grid with an image on each item. On top of each image has another smaller image (visa icon, to say that the item has been selected) only invisible. I’m trying to make when the person gives…
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3
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answer6083
viewsQ: Send an Arraylist of objects to an Activity
How to send an Arraylist of objects to an Activity on Android? ex: I have an Arraylist of Books objects, I want when I click this object arrayList to be passed to another Activity..
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1
votes1
answer2611
viewsQ: AVD Android 4.0+ Does not start
When I try to start an AVD with Android 4.0+ on the Windows of my two laptops does not work, but with Linux it works. The screen turns black, not even enter the Android opening screen even leaving…
androidasked felipe.rce 1,969 -
3
votes1
answer5449
viewsQ: Change text from Textview to an Android Fragment
I have a TextView within a Fragment (a tab). How do I change the text of this TextView? Here it is giving NullPointer qtAllImagensLabel = (TextView)findViewById(R.id.qtAllImagensLabel);…
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votes2
answers239
viewsQ: Two Android Progressdialog one after the other
How do I display two Preview Dialog, when one is finished, open the other? In my case the user clicks a button, then several files of a folder are moved and renamed to another folder, it first sends…
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0
votes3
answers528
viewsA: Read file only by Java Android application
I solved the problem! I followed Zuul’s idea, but one thing was missing... What I did: I’m not gonna put the whole code in here 'cause it’s huge, but there’s logic. First I created a hidden folder…
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3
votes3
answers528
viewsQ: Read file only by Java Android application
I’m making an application that reads images from a folder, but I have a problem, I need to prevent other applications (ex: gallery) and even file manager can open this image... How do I get only my…
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7
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answer1317
viewsQ: Java encryption with AES, how does it work?
I have found several examples by Google, but none that explains how a java encryption works with AES... How it works? In an example of the net, the guy quotes that he has to use a key, but it…
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4
votes1
answer2392
viewsQ: Generate private certificate APK using Eclipse Android
When I click "Run" in the eclipse it generates the APK, sends and installs on Android, but it installs using a Debug certificate, I’m using Google Games Services and it only works if the APK is with…
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3
votes3
answers8309
viewsQ: What Java byte serves
What is the byte type of java for? ex: byte[] dados = ... ; What’s the real use? Does anyone have an example?
javaasked felipe.rce 1,969 -
8
votes2
answers17077
viewsQ: Convert milliseconds to hh:mm java format
I’m making an Android game with a java engine where there is a Timer that runs all the time during the game... This timer is a millisecond counter and is added in a long. In the end I need to…
javaasked felipe.rce 1,969