fix channel selection

app/src/main/java/org/schabi/newpipe/settings/BasePreferenceFragment.java

@@ -19,8 +19,8 @@ public abstract class BasePreferenceFragment extends PreferenceFragmentCompat {
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
         defaultPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
+        super.onCreate(savedInstanceState);
     }
 
     @Override

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsFragment.java

@@ -3,22 +3,27 @@ package org.schabi.newpipe.settings;
 import android.os.Bundle;
 import android.support.v7.preference.ListPreference;
 import android.support.v7.preference.Preference;
-import android.util.Log;
 
 import org.schabi.newpipe.R;
-import org.schabi.newpipe.util.Constants;
 
 public class ContentSettingsFragment extends BasePreferenceFragment {
+
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+
         addPreferencesFromResource(R.xml.content_settings);
 
-        findPreference(getString(R.string.main_page_content_key))
-                .setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
+        final ListPreference mainPageContentPref =  (ListPreference) findPreference(getString(R.string.main_page_content_key));
+
+        mainPageContentPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
                     @Override
                     public boolean onPreferenceChange(Preference preference, Object newValueO) {
                         final String newValue = newValueO.toString();
 
+                        final String mainPrefOldValue =
+                                defaultPreferences.getString(getString(R.string.main_page_content_key), "blank_page");
+                        final String mainPrefOldSummary = getMainPagePrefSummery(mainPrefOldValue, mainPageContentPref);
+
                         if(newValue.equals(getString(R.string.kiosk_page_key))) {
                             //todo on multyservice support show a kiosk an service selector here
                         } else if(newValue.equals(getString(R.string.channel_page_key))) {
@@ -34,15 +39,25 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
                                             .putString(getString(R.string.main_page_selected_channel_name), name).apply();
 
                                     //change summery
-                                    Preference pref = findPreference(getString(R.string.main_page_content_key));
-                                    pref.setSummary(name);
-
-
+                                    mainPageContentPref.setSummary(name);
+                                }
+                            });
+                            selectChannelFragment.setOnCancelListener(new SelectChannelFragment.OnCancelListener() {
+                                @Override
+                                public void onCancel() {
+                                    //defaultPreferences.edit()
+                                    //        .putString(getString(R.string.main_page_content_key), mainPrefOldValue).apply();
+                                    mainPageContentPref.setSummary(mainPrefOldSummary);
+                                    mainPageContentPref.setValue(mainPrefOldValue);
                                 }
                             });
                             selectChannelFragment.show(getFragmentManager(), "select_channel");
                         }
 
+                        if(!newValue.equals(getString(R.string.channel_page_key))) {
+                            mainPageContentPref.setSummary(getMainPageSummeryByKey(newValue));
+                        }
+
                         return true;
                     }
                 });
@@ -60,4 +75,28 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
             pref.setSummary(defaultPreferences.getString(getString(R.string.main_page_selected_channel_name), "error"));
         }
     }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Utils
+    //////////////////////////////////////////////////////////////////////////*/
+    private String getMainPagePrefSummery(final String mainPrefOldValue, final ListPreference mainPageContentPref) {
+        if(mainPrefOldValue.equals(getString(R.string.channel_page_key))) {
+            return defaultPreferences.getString(getString(R.string.main_page_selected_channel_name), "error");
+        } else {
+            return mainPageContentPref.getSummary().toString();
+        }
+    }
+
+    private int getMainPageSummeryByKey(final String key) {
+        if(key.equals(getString(R.string.blank_page_key))) {
+            return R.string.blank_page_summary;
+        } else if(key.equals(getString(R.string.kiosk_page_key))) {
+            return R.string.kiosk_page_summary;
+        } else if(key.equals(getString(R.string.feed_page_key))) {
+            return R.string.feed_page_summary;
+        } else if(key.equals(getString(R.string.channel_page_key))) {
+            return R.string.channel_page_summary;
+        }
+        return R.string.blank_page_summary;
+    }
 }

app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java

@@ -13,6 +13,9 @@ import android.view.ViewGroup;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
+import com.nostra13.universalimageloader.core.DisplayImageOptions;
+import com.nostra13.universalimageloader.core.ImageLoader;
+
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.subscription.SubscriptionEntity;
 import org.schabi.newpipe.fragments.subscription.SubscriptionService;
@@ -50,6 +53,7 @@ import io.reactivex.schedulers.Schedulers;
 public class SelectChannelFragment extends DialogFragment {
     private SelectChannelAdapter channelAdapter;
     private SubscriptionService subscriptionService;
+    private ImageLoader imageLoader = ImageLoader.getInstance();
 
     private ProgressBar progressBar;
     private TextView emptyView;
@@ -57,15 +61,31 @@ public class SelectChannelFragment extends DialogFragment {
 
     private List<SubscriptionEntity> subscriptions = new Vector<>();
 
-    public interface OnSelectedLisener {
-        public void onChannelSelected(String url, String name, int service);
-    }
+    /*//////////////////////////////////////////////////////////////////////////
+    // Interfaces
+    //////////////////////////////////////////////////////////////////////////*/
 
-    OnSelectedLisener onSelectedLisener;
+    public interface OnSelectedLisener {
+        void onChannelSelected(String url, String name, int service);
+    }
+    OnSelectedLisener onSelectedLisener = null;
     public void setOnSelectedLisener(OnSelectedLisener listener) {
         onSelectedLisener = listener;
     }
 
+    public interface OnCancelListener {
+        void onCancel();
+    }
+    OnCancelListener onCancelListener = null;
+    public void setOnCancelListener(OnCancelListener listener) {
+        onCancelListener = listener;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Init
+    //////////////////////////////////////////////////////////////////////////*/
+
+
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View v = inflater.inflate(R.layout.select_channel_fragment, container, false);
@@ -90,6 +110,31 @@ public class SelectChannelFragment extends DialogFragment {
         return v;
     }
 
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Handle actions
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void onCancel(final DialogInterface dialogInterface) {
+        super.onCancel(dialogInterface);
+        if(onCancelListener != null) {
+            onCancelListener.onCancel();
+        }
+    }
+
+    private void clickedItem(int position) {
+        if(onSelectedLisener != null) {
+            SubscriptionEntity entry = subscriptions.get(position);
+            onSelectedLisener.onChannelSelected(entry.getUrl(), entry.getName(), entry.getServiceId());
+        }
+        dismiss();
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Item handling
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void displayChannels(List<SubscriptionEntity> subscriptions) {
         this.subscriptions = subscriptions;
         progressBar.setVisibility(View.GONE);
@@ -101,14 +146,6 @@ public class SelectChannelFragment extends DialogFragment {
 
     }
 
-    private void clickedItem(int position) {
-        if(onSelectedLisener != null) {
-            SubscriptionEntity entry = subscriptions.get(position);
-            onSelectedLisener.onChannelSelected(entry.getUrl(), entry.getName(), entry.getServiceId());
-        }
-        dismiss();
-    }
-
     private Observer<List<SubscriptionEntity>> getSubscriptionObserver() {
         return new Observer<List<SubscriptionEntity>>() {
             @Override
@@ -151,6 +188,7 @@ public class SelectChannelFragment extends DialogFragment {
                     clickedItem(position);
                 }
             });
+            imageLoader.displayImage(entry.getAvatarUrl(), holder.thumbnailView, DISPLAY_IMAGE_OPTIONS);
         }
 
         @Override
@@ -171,6 +209,10 @@ public class SelectChannelFragment extends DialogFragment {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Error
+    //////////////////////////////////////////////////////////////////////////*/
+
     protected boolean onError(Throwable e) {
         final Activity activity = getActivity();
         ErrorActivity.reportError(activity, e,
@@ -180,4 +222,17 @@ public class SelectChannelFragment extends DialogFragment {
                         "none", "", R.string.app_ui_crash));
         return true;
     }
+
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // ImageLoaderOptions
+    //////////////////////////////////////////////////////////////////////////*/
+
+    /**
+     * Base display options
+     */
+    public static final DisplayImageOptions DISPLAY_IMAGE_OPTIONS =
+            new DisplayImageOptions.Builder()
+                    .cacheInMemory(true)
+                    .build();
 }

app/src/main/res/values/strings.xml

@@ -268,11 +268,15 @@
 
     <!-- Content -->
     <string name="main_page_content">Content of main page</string>
+    <string name="blank_page_summary">Blank Page</string>
+    <string name="kiosk_page_summary">Kiosk Page</string>
+    <string name="feed_page_summary">Feed Page</string>
+    <string name="channel_page_summary">Channel Page</string>
     <string-array name="main_page_content_names">
-        <item>Blank Page</item>
-        <item>Trending Page</item>
-        <item>Feed Page</item>
-        <item>Channel Page</item>
+        <item>@string/blank_page_summary</item>
+        <item>@string/kiosk_page_summary</item>
+        <item>@string/feed_page_summary</item>
+        <item>@string/channel_page_summary</item>
     </string-array>
     <string name="select_a_channel">Select a channel</string>
     <string name="no_channel_subscribed_yet">No channel subscribed yet</string>