Fix orientation changes making execute uses cases. Minor refactor and leaks solved.

Author: android10

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/presenter/UserListPresenter.java

@@ -44,7 +44,8 @@ public class UserListPresenter implements Presenter {
   private final UserModelDataMapper userModelDataMapper;
 
   @Inject
-  public UserListPresenter(@Named("userList") UseCase getUserListUserCase, UserModelDataMapper userModelDataMapper) {
+  public UserListPresenter(@Named("userList") UseCase getUserListUserCase,
+      UserModelDataMapper userModelDataMapper) {
     this.getUserListUseCase = getUserListUserCase;
     this.userModelDataMapper = userModelDataMapper;
   }

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/view/activity/UserDetailsActivity.java

@@ -1,5 +1,6 @@
 /**
  * Copyright (C) 2014 android10.org. All rights reserved.
+ *
  * @author Fernando Cejas (the android10 coder)
  */
 package com.fernandocejas.android10.sample.presentation.view.activity;
@@ -23,20 +24,19 @@ public class UserDetailsActivity extends BaseActivity implements HasComponent<Us
   private static final String INTENT_EXTRA_PARAM_USER_ID = "org.android10.INTENT_PARAM_USER_ID";
   private static final String INSTANCE_STATE_PARAM_USER_ID = "org.android10.STATE_PARAM_USER_ID";
 
-  private int userId;
-  private UserComponent userComponent;
-
   public static Intent getCallingIntent(Context context, int userId) {
     Intent callingIntent = new Intent(context, UserDetailsActivity.class);
     callingIntent.putExtra(INTENT_EXTRA_PARAM_USER_ID, userId);
-
     return callingIntent;
   }
 
+  private int userId;
+  private UserComponent userComponent;
+
   @Override protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
-    setContentView(R.layout.activity_user_details);
+    setContentView(R.layout.activity_layout);
 
     this.initializeActivity(savedInstanceState);
     this.initializeInjector();
@@ -55,7 +55,7 @@ public static Intent getCallingIntent(Context context, int userId) {
   private void initializeActivity(Bundle savedInstanceState) {
     if (savedInstanceState == null) {
       this.userId = getIntent().getIntExtra(INTENT_EXTRA_PARAM_USER_ID, -1);
-      addFragment(R.id.fl_fragment, UserDetailsFragment.create(this.userId));
+      addFragment(R.id.fragmentContainer, new UserDetailsFragment());
     } else {
       this.userId = savedInstanceState.getInt(INSTANCE_STATE_PARAM_USER_ID);
     }

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/view/activity/UserListActivity.java

@@ -31,10 +31,9 @@ public static Intent getCallingIntent(Context context) {
   @Override protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
-    setContentView(R.layout.activity_user_list);
+    setContentView(R.layout.activity_layout);
 
     this.initializeInjector();
-
     if (savedInstanceState == null) {
       addFragment(R.id.fragmentContainer, new UserListFragment());
     }

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/view/component/AutoLoadImageView.java

@@ -1,5 +1,6 @@
 /**
  * Copyright (C) 2014 android10.org. All rights reserved.
+ *
  * @author Fernando Cejas (the android10 coder)
  */
 package com.fernandocejas.android10.sample.presentation.view.component;
@@ -10,6 +11,8 @@
 import android.graphics.BitmapFactory;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
+import android.os.Parcel;
+import android.os.Parcelable;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.widget.ImageView;
@@ -29,7 +32,8 @@ public class AutoLoadImageView extends ImageView {
 
   private static final String BASE_IMAGE_NAME_CACHED = "image_";
 
-  private int imagePlaceHolderResourceId = -1;
+  private String imageUrl = null;
+  private int imagePlaceHolderResId = -1;
   private DiskCache cache = new DiskCache(getContext().getCacheDir());
 
   public AutoLoadImageView(Context context) {
@@ -44,15 +48,36 @@ public AutoLoadImageView(Context context, AttributeSet attrs, int defStyle) {
     super(context, attrs, defStyle);
   }
 
+  @Override protected Parcelable onSaveInstanceState() {
+    Parcelable superState = super.onSaveInstanceState();
+    SavedState savedState = new SavedState(superState);
+    savedState.imagePlaceHolderResId = this.imagePlaceHolderResId;
+    savedState.imageUrl = this.imageUrl;
+    return savedState;
+  }
+
+  @Override protected void onRestoreInstanceState(Parcelable state) {
+    if(!(state instanceof SavedState)) {
+      super.onRestoreInstanceState(state);
+      return;
+    }
+    SavedState savedState = (SavedState)state;
+    super.onRestoreInstanceState(savedState.getSuperState());
+    this.imagePlaceHolderResId = savedState.imagePlaceHolderResId;
+    this.imageUrl = savedState.imageUrl;
+    this.setImageUrl(this.imageUrl);
+  }
+
   /**
    * Set an image from a remote url.
    *
    * @param imageUrl The url of the resource to load.
    */
   public void setImageUrl(final String imageUrl) {
+    this.imageUrl = imageUrl;
     AutoLoadImageView.this.loadImagePlaceHolder();
-    if (imageUrl != null) {
-      this.loadImageFromUrl(imageUrl);
+    if (this.imageUrl != null) {
+      this.loadImageFromUrl(this.imageUrl);
     } else {
       this.loadImagePlaceHolder();
     }
@@ -64,7 +89,7 @@ public void setImageUrl(final String imageUrl) {
    * @param resourceId The resource id to use as a place holder.
    */
   public void setImagePlaceHolder(int resourceId) {
-    this.imagePlaceHolderResourceId = resourceId;
+    this.imagePlaceHolderResId = resourceId;
     this.loadImagePlaceHolder();
   }
 
@@ -126,11 +151,11 @@ private void loadBitmap(final Bitmap bitmap) {
    * Loads the image place holder if any has been assigned.
    */
   private void loadImagePlaceHolder() {
-    if (this.imagePlaceHolderResourceId != -1) {
+    if (this.imagePlaceHolderResId != -1) {
       ((Activity) getContext()).runOnUiThread(new Runnable() {
         @Override public void run() {
           AutoLoadImageView.this.setImageResource(
-              AutoLoadImageView.this.imagePlaceHolderResourceId);
+              AutoLoadImageView.this.imagePlaceHolderResId);
         }
       });
     }
@@ -310,4 +335,37 @@ private File buildFileFromFilename(String fileName) {
       return new File(fullPath);
     }
   }
+
+  private static class SavedState extends BaseSavedState {
+    int imagePlaceHolderResId;
+    String imageUrl;
+
+    SavedState(Parcelable superState) {
+      super(superState);
+    }
+
+    private SavedState(Parcel in) {
+      super(in);
+      this.imagePlaceHolderResId = in.readInt();
+      this.imageUrl = in.readString();
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+      super.writeToParcel(out, flags);
+      out.writeInt(this.imagePlaceHolderResId);
+      out.writeString(this.imageUrl);
+    }
+
+    public static final Parcelable.Creator<SavedState> CREATOR =
+        new Parcelable.Creator<SavedState>() {
+          public SavedState createFromParcel(Parcel in) {
+            return new SavedState(in);
+          }
+
+          public SavedState[] newArray(int size) {
+            return new SavedState[size];
+          }
+        };
+  }
 }

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/view/fragment/UserDetailsFragment.java

@@ -28,8 +28,6 @@
  */
 public class UserDetailsFragment extends BaseFragment implements UserDetailsView {
 
-  private static final String ARGUMENT_KEY_USER_ID = "org.android10.ARGUMENT_USER_ID";
-
   @Inject UserDetailsPresenter userDetailsPresenter;
 
   @Bind(R.id.iv_cover) AutoLoadImageView iv_cover;
@@ -45,14 +43,6 @@ public UserDetailsFragment() {
     setRetainInstance(true);
   }
 
-  public static UserDetailsFragment create(int userId) {
-    UserDetailsFragment userDetailsFragment = new UserDetailsFragment();
-    Bundle argumentsBundle = new Bundle();
-    argumentsBundle.putInt(ARGUMENT_KEY_USER_ID, userId);
-    userDetailsFragment.setArguments(argumentsBundle);
-    return userDetailsFragment;
-  }
-
   @Override public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     this.getComponent(UserComponent.class).inject(this);
@@ -68,7 +58,9 @@ public static UserDetailsFragment create(int userId) {
   @Override public void onViewCreated(View view, Bundle savedInstanceState) {
     super.onViewCreated(view, savedInstanceState);
     this.userDetailsPresenter.setView(this);
-    this.userDetailsPresenter.initialize();
+    if (savedInstanceState == null) {
+      this.loadUserDetails();
+    }
   }
 
   @Override public void onResume() {

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/view/fragment/UserListFragment.java

@@ -76,7 +76,9 @@ public UserListFragment() {
   @Override public void onViewCreated(View view, Bundle savedInstanceState) {
     super.onViewCreated(view, savedInstanceState);
     this.userListPresenter.setView(this);
-    this.loadUserList();
+    if (savedInstanceState == null) {
+      this.loadUserList();
+    }
   }
 
   @Override public void onResume() {
@@ -100,6 +102,11 @@ public UserListFragment() {
     this.userListPresenter.destroy();
   }
 
+  @Override public void onDetach() {
+    super.onDetach();
+    this.userListListener = null;
+  }
+
   @Override public void showLoading() {
     this.rl_progress.setVisibility(View.VISIBLE);
     this.getActivity().setProgressBarIndeterminateVisibility(true);

presentation/src/main/res/layout/activity_user_list.xml renamed to presentation/src/main/res/layout/activity_layout.xml

@@ -1,12 +1,10 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    >
+    android:layout_height="match_parent">
 
   <FrameLayout
       android:id="@+id/fragmentContainer"
       android:layout_width="match_parent"
-      android:layout_height="match_parent"
-      />
+      android:layout_height="match_parent" />
 
 </RelativeLayout>

presentation/src/main/res/layout/activity_user_details.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:orientation="vertical"
     >
 
   <com.fernandocejas.android10.sample.presentation.view.component.AutoLoadImageView
@@ -15,15 +15,16 @@
   <TextView
       android:id="@+id/tv_fullname"
       style="@style/AppTheme.TextViewHeader"
+      android:freezesText="true"
       />
 
   <LinearLayout
-      android:orientation="vertical"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:layout_marginLeft="@dimen/activity_horizontal_margin"
-      android:layout_marginRight="@dimen/activity_horizontal_margin">
-
+      android:layout_marginRight="@dimen/activity_horizontal_margin"
+      android:orientation="vertical"
+      >
     <TextView
         style="@style/AppTheme.TextViewTitle"
         android:text="@string/view_text_email"
@@ -32,8 +33,8 @@
         android:id="@+id/tv_email"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:freezesText="true"
         />
-
     <TextView
         style="@style/AppTheme.TextViewTitle"
         android:text="@string/view_text_followers"
@@ -42,6 +43,7 @@
         android:id="@+id/tv_followers"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:freezesText="true"
         />
 
     <TextView
@@ -52,7 +54,8 @@
         android:id="@+id/tv_description"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:freezesText="true"
         />
   </LinearLayout>
 
-</LinearLayout>
+</LinearLayout>