How to use the Multidex framework in the Java library

How to use the Multidex framework in the Java library Introduction: In the development process of Android applications, a common problem that sometimes encountered is that the "method number of methods exceeds the limit" error caused by the large number of applications.This problem often occurs when the application introduces too many libraries or uses too many third -party libraries.To solve this problem, Google launched a framework called Multidex.The Multidex framework allows the application to subcontract, thereby solving the problem of the number of methods. step: 1. Add dependencies: First, add the dependencies of the Multidex library to the application built.gradle file.Add the following code to the DependenCies part: implementation 'com.android.support:multidex:1.0.3' 2. Confusion rules: If the application is confused, make sure to add the following rules to the proguard-rules.pro file: -keep class android.support.multidex.** { *; } 3. Change the Application class: Next, you need to change the Application class of the application to use the Multidex framework.Create a new class inherited from MultidexApplication and register this class in AndroidManifest.xml files.For example: public class MyApplication extends MultiDexApplication { // your code here } In the AndroidManifest.xml file, set the entire path of the Android: name property of the Application label to the full path of the Myapplication class created by you. 4. Enable Multidex: In the myapplication class of the application, add the following code to enable Multidex: @Override protected void attachBaseContext(Context base) { super.attachBaseContext(base); MultiDex.install(this); } 5. Clean和Rebuild: After completing the above steps, the Clean and Rebuild commands running Android Studio to ensure that the Multidex framework is properly integrated into the application. Summarize: The Multidex framework provides developers with a method to solve the number of Android application methods.By using the Multidex framework, the application can be subcontracted to avoid errors that exceed the limit.According to the above steps, developers can easily use the Multidex framework in the Java class library to solve this common problem.