Remark: I have a exercise " Display Gallery selected image using BitmapFactory " before. The original idea is to select image usin...
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Implement Android Gallery widget
Please note: android.widget.Gallery is no longer supported. Other horizontally scrolling widgets include HorizontalScrollView and ViewPage...
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Android Accessory Development Kit (ADK) for 2012
The Android Accessory Development Kit (ADK) for 2012 is the latest reference implementation of an Android Open Accessory device, designed...
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Sort directory/file in order of lastModified time
Last exercise describe how to Sort directory/file in alphabetical order ignore case . To Sort directory/file in order of lastModified time, ...
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Sort directory/file in alphabetical order ignore case
Last exercise of " File Explorer " list file/directory without order. We can implement Comparator<? super File> to sort the ...
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Example of File Explorer in Android
I have a exercise of " Implement a simple File Explorer in Android " long time ago. As I gain more understanding on Android, I wan...
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PreferenceFragment with ListPreference
Last post describe a simple example of PreferenceFragment with CheckBoxPreference and EditTextPreference . ListPreference will be added on t...
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Example of using PreferenceFragment
In my old post " Preferences and SharedPreferences " describe how to implement PreferenceActivity calling deprecated addPreference...
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Enable Hardware Acceleration using Java code
To enable Hardware Acceleration programmatically using Java code, call the following code with FLAG_HARDWARE_ACCELERATED : getWindow().setFl...
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Enable Hardware Acceleration for Android 3.0 or later devices
Android 3.0 (Honeycomb) introduced Hardware Acceleration. To enable Hardware Acceleration for your app, edit AndroidManifest.xml to insert t...
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RSS feed reader run in AsyncTask
It's a long long exercise . Refer to the previous exercise " A simple RSS reader IV, start browser to open the selected feed "...
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Pre-announce - New YouTube Android Player Tools@Google I/O 2012
If you are building Android smartphone, tablet or Google TV applications and want to incorporate high-quality YouTube video playback in your...
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Android Apps in Google Play - Google I/O 2012
Google Play is growing faster than ever. In this talk, we'll share insights about Google Play's momentum, the most successful Google...
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Create button with round background
To create button with round background, create /res/drawable/roundbackground.xml to define round background drawable. <?xml version=...
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Creating alias resources
When you have a resource that you'd like to use for more than one device configuration (but do not want to provide as a default resource...
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Providing Alternative Resources
App developers can provide alternative resources to support specific device configurations. For instance, you should include alternative dra...
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10.9% of Android devices running Ice Cream Sandwich
According to the updated distribution data from Android Developers Site, there are 10.9% of Android devices running Ice Cream Sandwich (Andr...
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Life cycle of MasterDetailFlow HelloWorld
In my previous post Life cycle of Fragment experience to know Lifecycle of simple Fragment. After that, Google released Android SDK Android...
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Error: The method onItemSelected(String) of type ItemListActivity must override a superclass method
It MAY BE happen if you new a project using the new Android SDK Revision 20: Eclipse complain with errors of: - The method onItemSelected(St...
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