tianhong1989/toolargetool

A tool to help you debug TransactionTooLargeExceptions on Android 7

Now in Kotlin!

toolargetool

A tool for debugging TransactionTooLargeException on Android.

"Most underrated solution." - Kedar Paranjape, Jun 7 '18 at 14:26

Usage

1. Include toolargetool as a dependency (you can remove it again once you've debugged your crash):

   • Add maven { url 'https://dl.bintray.com/guardian/android' } in your project's build.gradle:

     allprojects {
         repositories {
             jcenter()
             ...
             maven { url 'https://dl.bintray.com/guardian/android' }
         }
     }
     

   • Add implementation 'com.gu.android:toolargetool:0.2.1@aar' in your module's build.gradle:

     dependencies {
         ...
         implementation 'com.gu.android:toolargetool:0.2.1@aar'
     }
     

2. Add code to start logging during app start, for example in your Application.onCreate method:

   TooLargeTool.startLogging(this);
   

3. Monitor logcat output to see which components are writing substantial data to the transaction buffer and when:

   $ adb logcat -s TooLargeTool
   

   Example logcat output (TODO: improve this example):

   D/TooLargeTool: MainActivity.onSaveInstanceState wrote: Bundle@200090398 contains 1 keys and measures 0.6 KB when serialized as a Parcel
                                                                           * android:viewHierarchyState = 0.6 KB
   

Release process

Note: these instructions will only work if you have the relevant Bintray credentials

1. Open toolargetool/bintray.gradle.
2. Increase all the version numbers.
3. Make a commit and tag it with git tag -a v<version number> -m "<message>".
4. Run ./gradlew clean install && ./gradlew bintrayUpload.