I will start with an example. Let's assume that we want the user to change the date format of your application. For this you must have a class that extends PreferenceActivity, but first you have to create an XML file like this: 1. Make a directory in res called "xml" 2. In the xml directory…
If you want to make a custom title in a class that extends PreferenceActivity you must put
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requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); |
BEFORE super.onCreate(savedInstanceState); Otherwise you will get a Force Close
If you encounter this problem: "CheckBoxPreference is not allowed here" or other preference tag and your xml file is all red is because you create the xml in res/layout and you must create it in res/xml. So you have to make a new directory in res called "xml" and this is where your preferences xml…
Iv'e had a lot of trouble scrolling a ScrollView all the way to the bottom in android and I finally got the way to do it ! Here is the code:
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scrollView.post(new Runnable() { public void run() { scrollView.fullScroll(View.FOCUS_DOWN); } }); |
Hope it helps somebody !
NOTE: DEPRECATED. You should use Google Maps Android API V2 Sometimes in our applications we have to add new features like Maps. So in today's tutorial I will show you how to create a map for your application and what you need in order to create it. Firts of all you have to run the…
To make an AlertDialog you have to write this code:
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AlertDialog.Builder alertDelete = new AlertDialog.Builder(ListsActivity.this); //HERE YOU WILL WRITE THE MESSAGE YOU WANT alertDelete.setMessage(R.string.delete_confirm); //HERE IS THE POSITIVE BUTTON. YOU HAVE TO SET THE BUTTON NAME AND A CLICK LISTENER alertDelete.setPositiveButton(getString(R.string.yes),new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //YOUR ACTION } }); //HERE IS THE CANCEL BUTTON. YOU HAVE TO SET THE BUTTON NAME AND A CLICK LISTENER alertDelete.setNeutralButton(getString(R.string.cancel),new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int i) { dialog.cancel(); } }); alertDelete.show(); |
And now the result:
If it happened to reinstall your Intelij and you don't remember how to import your android projects maybe this post will help you, even a little at least. So, lets begin. Step 1: Press CTRL+SHIFT+ALT+S and the Project Structure window will open. On the left click on the project and then press the new button…
Step 1: Create an XML in the drawable folder and name it selected_item.xml (or any another name you want but to be suggestive). The code in this xml will be:
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<shape android="http://schemas.android.com/apk/res/android" shape="rectangle"> <solid color="#80000000"></solid> </shape> |
The color="#80000000" is transparent black. Step 2: Create an XML again, in the drawable folder an name it not_selected.xml. The code in this xml will be:…