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How-to articles, tricks, and solutions about ANDROID

Android changing Floating Action Button color

To change the color of a Floating Action Button (FAB) in Android, you can use the setBackgroundTintList() method and pass it a color state list.

java android android-5.0-lollipop floating-action-button

android on Text Change Listener

In Android, you can use a TextWatcher to listen for changes to the text in a TextView or EditText view.

java android textview onchange

Android SDK installation doesn't find JDK

If the Android SDK installation is unable to find the JDK (Java Development Kit), it could be because the JDK is not installed or is not installed in the default location.

java android sdk windows-7-x64 jdk6

Android Split string

To split a string in Android, you can use the split() method of the String class.

java string android

Converting a string to an integer on Android

To convert a string to an integer in Android, you can use the Integer.parseInt method.

java string integer android android-edittext

Converting double to string

In Java, you can convert a double to a string using the Double.toString() method or the String.valueOf() method.

java android

Download a file with Android, and showing the progress in a ProgressDialog

To download a file with Android and show the progress in a ProgressDialog, you can use the following steps:

java download android android-asynctask

Execution Failed for task :app:compileDebugJavaWithJavac in Android Studio

Execution failed for task :app:compileDebugJavaWithJavac is an error message that can occur when you are trying to build an Android project in Android Studio.

java android gradle android-studio

Extending from two classes

In Java, a class can only extend from one superclass (i.e., it can only have one direct parent class).

java android

Failed to install android-sdk: "java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema"

The java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema error can occur if the required Java XML Binding (JAXB) classes are not present on the classpath.

java android java-9