Re-work of thread model

examples/android/ExampleAndroidApp/app/build.gradle

@@ -20,15 +20,25 @@ android {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+        release {
+            debuggable true
+            jniDebuggable true
+            minifyEnabled false
+        }
     }
 }
 
 dependencies {
+    implementation 'com.squareup.picasso:picasso:2.71828'
     implementation files('libs/libzt-android-debug.aar')
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
+    implementation("com.squareup.okhttp3:okhttp:3.12.0")
     implementation 'com.android.support.constraint:constraint-layout:1.1.2'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+
+    implementation 'com.github.bumptech.glide:glide:4.6.1'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'
 }