After enabling minifyEnabled=true API is not sending data to server. When I checked in the server, I am getting all the inputs are null. However, if I add -dontobfuscate in "proguard-rules.pro" file then the app is working fine. I am using retrofit2. I tried almost all the ProGuard rules regarding the retrofit2. Nothing worked!.
My build.gradle file:
def lifecycleExtensionVersion = '2.2.0'
def butterknifeVersion = '10.1.0'
def supportVersion = '29.0.0'
def retrofitVersion = '2.3.0'
def glideVersion = '4.9.0'
def rxJavaVersion = '2.1.1'
def daggerVersion = '2.14.1'
def mockitoVersion = '2.11.0'
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.google.firebase:firebase-crashlytics:17.2.1'
implementation 'com.google.firebase:firebase-messaging:20.2.4'
implementation 'com.google.firebase:firebase-analytics:17.5.0'
implementation 'com.google.firebase:firebase-auth:19.3.0'
implementation "com.android.support:design:$supportVersion"
implementation "android.arch.lifecycle:extensions:$lifecycleExtensionVersion"
implementation "com.jakewharton:butterknife:$butterknifeVersion"
implementation 'androidx.work:work-runtime:2.2.0'
annotationProcessor "com.jakewharton:butterknife-compiler:$butterknifeVersion"
implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"
implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"
implementation "com.squareup.retrofit2:adapter-rxjava2:$retrofitVersion"
implementation "io.reactivex.rxjava2:rxjava:$rxJavaVersion"
implementation "io.reactivex.rxjava2:rxandroid:$rxJavaVersion"
implementation "com.github.bumptech.glide:glide:$glideVersion"
implementation "com.google.dagger:dagger:$daggerVersion"
implementation "com.google.dagger:dagger-android-support:$daggerVersion"
implementation "androidx.legacy:legacy-support-v4:1.0.0"
annotationProcessor "com.google.dagger:dagger-compiler:$daggerVersion"
annotationProcessor "com.google.dagger:dagger-android-processor:$daggerVersion"
implementation 'com.airbnb:deeplinkdispatch:4.1.0'
annotationProcessor 'com.airbnb:deeplinkdispatch-processor:4.1.0'
testImplementation "org.mockito:mockito-inline:$mockitoVersion"
testImplementation "android.arch.core:core-testing:1.1.1"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}
Also, when minifyEnabled=true, the following "getLoginResult" function is not reaching when I debug. But when I add -dontobfuscate then it reaches.
LoginViewModel.Java
import android.util.Log;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.ViewModel;
import io.reactivex.disposables.CompositeDisposable;
import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class LoginViewModel extends ViewModel {
public MutableLiveData<LoginUser> loginUser = new MutableLiveData<>();
public MutableLiveData<Boolean> loginUserLoadError = new MutableLiveData<>();
public MutableLiveData<Boolean> loading = new MutableLiveData<>();
private CompositeDisposable disposable = new CompositeDisposable();
public LiveData<ResponseBody> getLoginResult(String getEmail, String getPassword, String device_ip){
loading.setValue(true);
final MutableLiveData<ResponseBody> outputReponse = new MutableLiveData<>();
LoginUser loginUser = new LoginUser(getEmail, getPassword, device_ip);
Call<ResponseBody> call = LoginService
.getInstance()
.getLoginAPI()
.loginUser(loginUser);
call.enqueue(new Callback<ResponseBody>() {
@Override
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
outputReponse.setValue(response.body());
}
@Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
Log.d("Login Failed", t.getLocalizedMessage());
}
});
return outputReponse;
}
What I am missing or doing wrong here? How can I get it work.
Two way you can fix this:
Insert Annotation Keep for all response and request DTO Class.
Fix to keep all class do you need in proguard-rules.pro file like this :
-ignorewarnings
-keep class * {
public private *;
}
-keep class com.google.android.gms.** { *; }
-dontwarn com.google.android.gms.**
-dontwarn org.xmlpull.v1.**
-dontnote org.xmlpull.v1.**
-keep class org.xmlpull.** { *; }
#retRofit
# Platform calls Class.forName on types which do not exist on Android to determine platform.
-dontnote retrofit2.Platform
# Platform used when running on RoboVM on iOS. Will not be used at runtime.
-dontnote retrofit2.Platform$IOS$MainThreadExecutor
# Platform used when running on Java 8 VMs. Will not be used at runtime.
-dontwarn retrofit2.Platform$Java8
# Retain generic type information for use by reflection by converters and adapters.
-keepattributes Signature
# Retain declared checked exceptions for use by a Proxy instance.
-keepattributes Exceptions
-keepclasseswithmembers class * {
@retrofit2.http.* <methods>;
}
# Orm
-keep class * extends com.raizlabs.android.dbflow.config.DatabaseHolder { *; }
# Fresco
-keep,allowobfuscation @interface com.facebook.common.internal.DoNotStrip
-keep @com.facebook.common.internal.DoNotStrip class *
-keepclassmembers class * {
@com.facebook.common.internal.DoNotStrip *;
}
-keepclassmembers class * {
native <methods>;
}
-dontwarn okio.**
-dontwarn com.squareup.okhttp.**
-dontwarn okhttp3.**
-dontwarn javax.annotation.**
-dontwarn com.android.volley.toolbox.**
# com.github.siyamed:android-shape-imageview
-dontwarn android.support.v7.**
-keepattributes *Annotation,Signature
-dontwarn com.github.siyamed.**
-keep class com.github.siyamed.shapeimageview.**{ *; }
-dontwarn org.xmlpull.v1.**
-dontwarn uk.co.senab.photoview.**
#Image Cropper
-keep class androidx.appcompat.widget.** { *; }
# Keep source file names, line numbers, and Parse class/method names for easier debugging
-keepattributes SourceFile,LineNumberTable
-keepnames class com.parse.** { *; }
# Required for Parse
-keepattributes *Annotation*
-keepattributes Signature
-dontwarn com.squareup.**
-dontwarn okio.**
-keepattributes SourceFile,LineNumberTable
-keep class com.parse.*{ *; }
-dontwarn com.parse.**
-dontwarn com.squareup.picasso.**
-keepclasseswithmembernames class * {
native <methods>;
}
```