Reduce apk size android

Question

I am facing a problem with app size in android.

The scenario is,

I developed my android app in Android Studio 2.0 and the size of apk was 23 MB.

After that, I upgraded my IDE to android studio 2.2 and with little code modification the size of apk boosted to 51 MB.

I tried with prorogued and Lint but no advantage.

Can Someone help me to tackle the issue.

Answer 1

1) Replace all of Images,Icons with vector drawable

2) Turn on pro guard like following goto build.gradleapp level

and put these lines

**shrinkResources true

minifyEnabled true**

3) Remove unused classes,drawable and methods and strings and use LINT's private method analyser which reduces method count

JAVA's Hidden cost

4) In android studio 2.2 and above they have added apk analyser tool in Build menu. Use that to analyse APk

5) if app size goes beyond 100mb use feature called split apk. there are two methods of spliting apk ABI and Density Splits

Answer 2

Do this changes in your build.gradle(Module:app) file. It decreases the apk size almost (40-50)%.

android {
// Other settings

  buildTypes {
      release {
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
      }
  }
}

It reduces the size of classes.dex files and res folder .

It is recommended to that you should use webp file format instead of BMP, JPG, PNG for better compression.

For reference, you can use: https://developer.android.com/studio/write/convert-webp.html

For more details on apk compression you can refer:

https://developer.android.com/topic/performance/reduce-apk-size.html

https://medium.com/how-you-can-decrease-application-size

Answer 3

Points to reduce APK size:

Make sure to do it

1. Use vector drawable
2. Use xml drawable to create simple view
3. Rotate images using xml drawable to reuse (eg. in case of arrow buttons)
4. Create drawable through code
5. Use aaptOptions { cruncherEnabled = false } to compress images
6. Use webP format for large images
7. Avoid enumerations and use @IntDef annotation
8. Use shrinkResources true in gradle to remove unused resources
9. Use resConfig “en” in gradle to remove other localization

Answer 4

Android Size Analyser Reduce apk size android Android Studio has the Android Size Analyser plugin that allows you to see which files are taking up the most space. To install the plugin

Select File > Setting (or, on Mac, Android Studio > Preferences. Scroll down to the plugins section. Click on the Marketplace tab. Look for the “Android Size Analyzer” plugin. To install the analyzer plugin, click the Install link. After installing the plugin, restart the IDE. To analyze your application, click Analyze> Analyze App Size in the menu bar. You will see something similar:

Use below Steps

1. Unused Resource
2. Lint
3. Proguard
4. Utilization of ShrinkResources
5. Limit the use of libraries from other countries
6. Use your code again
7. Reduce the size of APK with R8
8. Reduce the library size
9. DebugImplementation

Read More On Codeplayon Web Site 3. Proguard

Proguard can also be used to reduce the size of your application by removing unneeded classes and methods. This makes it difficult to reverse engineer your code.

buildTypes {
      release { 
          minifyEnabled false 
          proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),
           'proguard-rules.pro' }
      }

3.Utilization of ShrinkResources

In the build, you will see the ShrinkResources method. Gradle file. This will eliminate resources that are not being used for the project.

It must be enabled by declaring that it is true. This method is available in build.Gradle file > createTypes > release > shrinkResources. Make it true.

buildTypes { 
         release { 
             shrinkResources true 
     }
 }

9. DebugImplementation

You can delete any debug libraries you have in your app. This can be accomplished by using DebugImplementation when building a testing debug apk.

debugImplementation 'com.amitshekhar.android:debug-db:1.0.1'