Show frequently used intents on top

mobile/src/com/cradle/iitc_mobile/share/IntentComparator.java

@@ -0,0 +1,194 @@
+package com.cradle.iitc_mobile.share;
+
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.util.Comparator;
+import java.util.HashMap;
+
+public class IntentComparator implements Comparator<ResolveInfo> {
+    public static class Component implements Serializable {
+        private static final long serialVersionUID = -5043782754318376792L;
+
+        public String name;
+        public String packageName;
+
+        public Component() {
+            name = null;
+            packageName = null;
+        }
+
+        public Component(ResolveInfo info) {
+            name = info.activityInfo.name;
+            packageName = info.activityInfo.applicationInfo.packageName;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o)
+                return true;
+
+            if (o == null)
+                return false;
+            if (o.getClass() != getClass())
+                return false;
+
+            Component c = (Component) o;
+
+            if (name == null) {
+                if (c.name != null)
+                    return false;
+            } else {
+                if (!name.equals(c.name))
+                    return false;
+            }
+
+            if (name == null) {
+                if (c.name != null)
+                    return false;
+            } else {
+                if (!name.equals(c.name))
+                    return false;
+            }
+
+            if (packageName == null) {
+                if (c.packageName != null)
+                    return false;
+            } else {
+                if (!packageName.equals(c.packageName))
+                    return false;
+            }
+
+            return true;
+        }
+
+        @Override
+        public int hashCode() {
+            int hc = 2;
+            final int hashMultiplier = 7;
+
+            hc += (name == null) ? 0 : name.hashCode();
+            hc *= hashMultiplier;
+            hc += (packageName == null) ? 0 : packageName.hashCode();
+
+            return hc;
+        }
+
+        @Override
+        public String toString() {
+            return packageName + "/" +
+                    (name.startsWith(packageName + ".")
+                            ? name.substring(packageName.length())
+                            : name);
+        }
+    }
+
+    private static final String INTENT_MAP_FILE = "share_intent_map";
+
+    private ShareActivity mActivity;
+    private HashMap<Component, Integer> mIntentMap = new HashMap<Component, Integer>();
+    private PackageManager mPackageManager;
+
+    IntentComparator(ShareActivity activity) {
+        mActivity = activity;
+        mPackageManager = activity.getPackageManager();
+
+        load();
+    }
+
+    @SuppressWarnings("unchecked")
+    private void load() {
+        ObjectInputStream objectIn = null;
+
+        try {
+            FileInputStream fileIn = mActivity.openFileInput(INTENT_MAP_FILE);
+            objectIn = new ObjectInputStream(fileIn);
+            mIntentMap = (HashMap<Component, Integer>) objectIn.readObject();
+        } catch (FileNotFoundException e) {
+            // Do nothing
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        } finally {
+            if (objectIn != null) {
+                try {
+                    objectIn.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    @Override
+    public int compare(ResolveInfo lhs, ResolveInfo rhs) {
+        int order;
+
+        Integer lCount = mIntentMap.get(new Component(lhs));
+        Integer rCount = mIntentMap.get(new Component(rhs));
+
+        if (lCount == null) lCount = 0;
+        if (rCount == null) rCount = 0;
+
+        if (lCount > rCount) return -1;
+        if (lCount < rCount) return 1;
+
+        order = lhs.loadLabel(mPackageManager).toString()
+                .compareTo(rhs.loadLabel(mPackageManager).toString());
+        if (order != 0) return order;
+
+        if (lhs.nonLocalizedLabel != null && rhs.nonLocalizedLabel != null) {
+            order = lhs.nonLocalizedLabel.toString().compareTo(rhs.nonLocalizedLabel.toString());
+            if (order != 0) return order;
+        }
+
+        order = lhs.activityInfo.packageName.compareTo(rhs.activityInfo.packageName);
+        if (order != 0) return order;
+
+        order = lhs.activityInfo.name.compareTo(rhs.activityInfo.name);
+        if (order != 0) return order;
+
+        return 0;
+    }
+
+    public void save() {
+        ObjectOutputStream objectOut = null;
+        try {
+            FileOutputStream fileOut = mActivity.openFileOutput(INTENT_MAP_FILE, Activity.MODE_PRIVATE);
+            objectOut = new ObjectOutputStream(fileOut);
+            objectOut.writeObject(mIntentMap);
+            fileOut.getFD().sync();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if (objectOut != null) {
+                try {
+                    objectOut.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public void trackIntentSelection(ResolveInfo info) {
+        Component component = new Component(info);
+
+        Integer counter = mIntentMap.get(component);
+        if (counter == null)
+            counter = 1;
+        else
+            counter++;
+
+        mIntentMap.put(component, counter);
+    }
+}

mobile/src/com/cradle/iitc_mobile/share/IntentFragment.java

@@ -44,8 +44,12 @@ public class IntentFragment extends Fragment implements OnScrollListener, OnItem
 
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        ((ShareActivity) getActivity()).getIntentComparator().trackIntentSelection(mListView.getItem(position));
+
         Intent intent = mListView.getTargetIntent(position);
         startActivity(intent);
+
+        getActivity().finish();
     }
 
     @Override

mobile/src/com/cradle/iitc_mobile/share/IntentListView.java

@@ -21,35 +21,11 @@ import com.cradle.iitc_mobile.R;
 
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 
 public class IntentListView extends ListView {
-    public class IntentComparator implements Comparator<ResolveInfo> {
-        @Override
-        public int compare(ResolveInfo lhs, ResolveInfo rhs) {
-            int order;
-
-            order = lhs.loadLabel(mPackageManager).toString().compareTo(rhs.loadLabel(mPackageManager).toString());
-            if (order != 0) return order;
-
-            if (lhs.nonLocalizedLabel != null && rhs.nonLocalizedLabel != null) {
-                order = lhs.nonLocalizedLabel.toString().compareTo(rhs.nonLocalizedLabel.toString());
-                if (order != 0) return order;
-            }
-
-            order = lhs.activityInfo.packageName.compareTo(rhs.activityInfo.packageName);
-            if (order != 0) return order;
-
-            order = lhs.activityInfo.name.compareTo(rhs.activityInfo.name);
-            if (order != 0) return order;
-
-            return 0;
-        }
-    }
-
     private static class CopyHandler extends Pair<String, String> {
         public CopyHandler(ResolveInfo resolveInfo) {
             super(resolveInfo.activityInfo.packageName, resolveInfo.activityInfo.name);
@@ -97,7 +73,8 @@ public class IntentListView extends ListView {
         }
     }
 
-    private final HashMap<ComponentName, Intent> mActivities = new HashMap<ComponentName, Intent>();
+    private HashMap<ComponentName, Intent> mActivities = new HashMap<ComponentName, Intent>();
+
     private IntentAdapter mAdapter;
     private PackageManager mPackageManager;
 
@@ -211,11 +188,10 @@ public class IntentListView extends ListView {
             }
         }
 
-        Collections.sort(allActivities, new IntentComparator());
+        Collections.sort(allActivities, ((ShareActivity) getContext()).getIntentComparator());
 
         mAdapter.addAll(allActivities);
         mAdapter.setNotifyOnChange(true);
         mAdapter.notifyDataSetChanged();
     }
-
 }

mobile/src/com/cradle/iitc_mobile/share/ShareActivity.java

@@ -19,13 +19,14 @@ import java.net.URLEncoder;
 import java.util.ArrayList;
 
 public class ShareActivity extends FragmentActivity implements ActionBar.TabListener {
+    private IntentComparator mComparator;
+    private IntentFragmentAdapter mFragmentAdapter;
     private boolean mIsPortal;
     private String mLl;
     private SharedPreferences mSharedPrefs = null;
     private String mTitle;
+    private ViewPager mViewPager;
     private int mZoom;
-    IntentFragmentAdapter mFragmentAdapter;
-    ViewPager mViewPager;
 
     private void addTab(ArrayList<Intent> intents, int label, int icon) {
         IntentFragment fragment = new IntentFragment();
@@ -53,9 +54,7 @@ public class ShareActivity extends FragmentActivity implements ActionBar.TabList
 
     private void setSelected(int position) {
         // Activity not fully loaded yet (may occur during tab creation)
-        if (mSharedPrefs == null) {
+        if (mSharedPrefs == null) { return; }
-            return;
-        }
 
         mSharedPrefs
                 .edit()
@@ -102,6 +101,8 @@ public class ShareActivity extends FragmentActivity implements ActionBar.TabList
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_share);
 
+        mComparator = new IntentComparator(this);
+
         mFragmentAdapter = new IntentFragmentAdapter(getSupportFragmentManager());
 
         final ActionBar actionBar = getActionBar();
@@ -158,6 +159,16 @@ public class ShareActivity extends FragmentActivity implements ActionBar.TabList
         }
     }
 
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mComparator.save();
+    }
+
+    public IntentComparator getIntentComparator() {
+        return mComparator;
+    }
+
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {