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Android

How to Programmatically Pair or Unpair Android Bluetooth Device

February 20, 2014 by Lorensius Londa 24 Comments

In bluetooth wireless communication, if two devices want to connect and share data, they have to be paired first. To be paired means the two devices are aware of each other's existence and trusted each other.  Using Android Bluetooth API, we can use createBond method to pair with a device … [Read more...] about How to Programmatically Pair or Unpair Android Bluetooth Device

How to Programmatically Scan or Discover Android Bluetooth Devices

February 20, 2014 by Lorensius Londa 14 Comments

Through Android Bluetooth API, developers can access most of bluetooth functionalities and let the applications wirelessly connect to bluetooth devices. Before connecting to a device, an application must discover or scan available bluetooth devices, request pairing and connect to the device.   … [Read more...] about How to Programmatically Scan or Discover Android Bluetooth Devices

New BBM for Android V2.0 is Out, Brings Channels, Voice, Location Sharing, Tons of New Emoticons, Larger Groups and More

February 16, 2014 by Lorensius Londa Leave a Comment

Good news for BBM users, new version 2.0 is currently available on Google Store. This new update brings a lot of changes and new features. BBM Voice - Free voice calls between BBM contacts (Android, Blackberry, Iphone) BBM Channels - join conversations happening now with BBM users, brands, … [Read more...] about New BBM for Android V2.0 is Out, Brings Channels, Voice, Location Sharing, Tons of New Emoticons, Larger Groups and More

How to Convert Time in Milliseconds into Relative Time Format in Android

February 14, 2014 by Lorensius Londa 2 Comments

Relative time format like "moments ago" or "5 minutes ago" or "one month ago" like those in Facebook, Twitter or other social media makes the time information easy to read and human readable. In Android we can use built in API DateUtils or external java library Prettytime to implement this … [Read more...] about How to Convert Time in Milliseconds into Relative Time Format in Android

Solution to Make an Android App Visible to All Devices in Google Play When Using Specific Feature

February 11, 2014 by Lorensius Londa Leave a Comment

As we know, Google Play filters android applications that are visible to user by comparing features that required by the application with the features available on the device. Android requires specific tags to be declared on manifest file when using a  specific feature. Commonly use tags are … [Read more...] about Solution to Make an Android App Visible to All Devices in Google Play When Using Specific Feature

How to Make Android Map Scrollable Inside a ScrollView Layout

February 10, 2014 by Lorensius Londa 11 Comments

Technically, placing a map view  inside a ScrollView layout container can make the map becoming difficult to scroll. This is because the scrollable layout container will intercept the touch event so the map will lose the touch event, making it difficult to scroll or pan. This happens either on … [Read more...] about How to Make Android Map Scrollable Inside a ScrollView Layout

Android Tips: How to Place Image or Logo at The Center of Actionbar

January 24, 2014 by Lorensius Londa 1 Comment

When building an Android application, sometimes we need to put  application logo at the center of Actionbar. Android doesn't provide a straight method to place a logo image at the center of Actionbar so we have to make a custom layout contains the logo image and place it on Actionbar using custom … [Read more...] about Android Tips: How to Place Image or Logo at The Center of Actionbar

Simple JSON RPC Client for Android

January 11, 2014 by Lorensius Londa 2 Comments

This is a simple JSON RPC Client for Android. I wrote this class for one of my Android projects that needs to connect to external JSON RPC API. Feel free to use it, download the files at the bottom of this post..;) JSON RPC Client How to use it: [ad] Download Simple JSON RPC … [Read more...] about Simple JSON RPC Client for Android

How to solve error: Conversion to Dalvik format failed with error 1 in Android on export

January 11, 2014 by Lorensius Londa Leave a Comment

Signing Android APK is the latest step from our  Android app development process before uploading it to Google Play Store. Using a production keystore, we can easily create a signed apk using Export menu on Eclipse IDE. But sometimes, the error might occur while exporting it. Conversion to … [Read more...] about How to solve error: Conversion to Dalvik format failed with error 1 in Android on export

Two Most Useful Features on Android 4.2.2

March 1, 2013 by Lorensius Londa 1 Comment

Google has released its latest version of Android OS several weeks ago, Android Jelly Bean 4.2.2. This new update has no significant changes, only few new feature updates and bug fixes. I've updated my Galaxy Nexus to Android 4.2.2 via OTA updated. The update was about 44MB so it was easy to … [Read more...] about Two Most Useful Features on Android 4.2.2

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