Commit: 821736e1fb70be2c827c9e6a35a7739762523897 - development (git)

development

Commit MetaInfo

• Revisão: 821736e1fb70be2c827c9e6a35a7739762523897 (tree)
• Hora: 2011-02-08 04:56:55
• Autor: Alexander Lucas <alexlucas@goog...>
• Commiter: Alexander Lucas

Mensagem de Log

Added a dialog box, better drag/drop, transparent action bar. fixed crash on camera rotation, updated for new Honeycomb targets.

Change-Id: I40c7a2872d94a13a12fe89d5533b926e201f9eb5

Mudança Sumário

• modified: samples/Honeycomb-Gallery/res/layout-port/main.xml
• modified: samples/Honeycomb-Gallery/res/layout/main.xml
• modified: samples/Honeycomb-Gallery/res/menu/main_menu.xml
• add: samples/Honeycomb-Gallery/res/values/colors.xml
• modified: samples/Honeycomb-Gallery/src/com/example/android/hcgallery/CameraFragment.java
• modified: samples/Honeycomb-Gallery/src/com/example/android/hcgallery/ContentFragment.java
• modified: samples/Honeycomb-Gallery/src/com/example/android/hcgallery/Directory.java
• modified: samples/Honeycomb-Gallery/src/com/example/android/hcgallery/MainActivity.java
• modified: samples/Honeycomb-Gallery/src/com/example/android/hcgallery/TitlesFragment.java

Diff

--- a/samples/Honeycomb-Gallery/res/layout-port/main.xml
+++ b/samples/Honeycomb-Gallery/res/layout-port/main.xml
@@ -23,6 +23,7 @@
     <fragment class="com.example.android.hcgallery.TitlesFragment"
             android:id="@+id/frag_title"
             android:visibility="gone"
+            android:layout_marginTop="?android:attr/actionBarSize"
             android:layout_width="match_parent"
             android:layout_height="@dimen/titles_size"/>
 

--- a/samples/Honeycomb-Gallery/res/layout/main.xml
+++ b/samples/Honeycomb-Gallery/res/layout/main.xml
@@ -23,6 +23,7 @@
     <fragment class="com.example.android.hcgallery.TitlesFragment"
             android:id="@+id/frag_title"
             android:visibility="gone"
+            android:layout_marginTop="?android:attr/actionBarSize"
             android:layout_width="@dimen/titles_size"
             android:layout_height="match_parent" />
 
@@ -30,5 +31,5 @@
             android:id="@+id/frag_content"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />
-
+    
 </LinearLayout>

--- a/samples/Honeycomb-Gallery/res/menu/main_menu.xml
+++ b/samples/Honeycomb-Gallery/res/menu/main_menu.xml
@@ -27,4 +27,7 @@
     <item android:id="@+id/toggleTheme"
         android:title="Day/Night"
         android:showAsAction="ifRoom|withText" />
+    <item android:id="@+id/showDialog"
+          android:title="Show a dialog"
+          android:showAsAction="ifRoom|withText" />
 </menu>

--- /dev/null
+++ b/samples/Honeycomb-Gallery/res/values/colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2011 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ -->
+<resources>
+    <color name="actionbar_background_light">#ccffffff</color>
+    <color name="actionbar_background_dark">#cc000000</color>
+</resources>

--- a/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/CameraFragment.java
+++ b/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/CameraFragment.java
@@ -43,20 +43,15 @@ public class CameraFragment extends Fragment {
     private Preview mPreview;
     Camera mCamera;
     int mNumberOfCameras;
-    int cameraCurrentlyLocked;
+    int mCameraCurrentlyLocked;
 
     // The first rear facing camera
-    int defaultCameraId;
+    int mDefaultCameraId;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        // Add an up arrow to the "home" button, indicating that the button will go "up"
-        // one activity in the app's Activity heirarchy.
-        Activity activity = this.getActivity();
-        ActionBar actionBar = activity.getActionBar();
-        actionBar.setDisplayHomeAsUpEnabled(true);
 
         // Create a RelativeLayout container that will hold a SurfaceView,
         // and set it as the content of our activity.
@@ -70,13 +65,27 @@ public class CameraFragment extends Fragment {
         for (int i = 0; i < mNumberOfCameras; i++) {
             Camera.getCameraInfo(i, cameraInfo);
             if (cameraInfo.facing == CameraInfo.CAMERA_FACING_BACK) {
-                defaultCameraId = i;
+                mDefaultCameraId = i;
             }
         }
         setHasOptionsMenu(mNumberOfCameras > 1);
     }
 
     @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        // Add an up arrow to the "home" button, indicating that the button will go "up"
+        // one activity in the app's Activity heirarchy.
+        // Calls to getActionBar() aren't guaranteed to return the ActionBar when called
+        // from within the Fragment's onCreate method, because the Window's decor hasn't been
+        // initialized yet.  Either call for the ActionBar reference in Activity.onCreate()
+        // (after the setContentView(...) call), or in the Fragment's onActivityCreated method.
+        Activity activity = this.getActivity();
+        ActionBar actionBar = activity.getActionBar();
+        actionBar.setDisplayHomeAsUpEnabled(true);
+    }
+
+    @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
         return mPreview;
@@ -87,8 +96,8 @@ public class CameraFragment extends Fragment {
         super.onResume();
 
         // Open the default i.e. the first rear facing camera.
-        mCamera = Camera.open(defaultCameraId);
-        cameraCurrentlyLocked = defaultCameraId;
+        mCamera = Camera.open(mDefaultCameraId);
+        mCameraCurrentlyLocked = mDefaultCameraId;
         mPreview.setCamera(mCamera);
     }
 
@@ -120,7 +129,7 @@ public class CameraFragment extends Fragment {
         // Handle item selection
         switch (item.getItemId()) {
         case R.id.switch_cam:
-            // Release this camera -> cameraCurrentlyLocked
+            // Release this camera -> mCameraCurrentlyLocked
             if (mCamera != null) {
                 mCamera.stopPreview();
                 mPreview.setCamera(null);
@@ -131,8 +140,8 @@ public class CameraFragment extends Fragment {
             // Acquire the next camera and request Preview to reconfigure
             // parameters.
             mCamera = Camera
-                    .open((cameraCurrentlyLocked + 1) % mNumberOfCameras);
-            cameraCurrentlyLocked = (cameraCurrentlyLocked + 1)
+                    .open((mCameraCurrentlyLocked + 1) % mNumberOfCameras);
+            mCameraCurrentlyLocked = (mCameraCurrentlyLocked + 1)
                     % mNumberOfCameras;
             mPreview.switchCamera(mCamera);
 

--- a/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/ContentFragment.java
+++ b/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/ContentFragment.java
@@ -23,6 +23,8 @@ import android.app.Fragment;
 import android.content.ClipData;
 import android.content.ClipDescription;
 import android.content.ClipData.Item;
+import android.graphics.Bitmap;
+import android.graphics.Color;
 import android.os.Bundle;
 import android.view.DragEvent;
 import android.view.LayoutInflater;
@@ -30,8 +32,12 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.view.View.OnClickListener;
 import android.widget.ImageView;
+import android.view.Window;
+import android.view.WindowManager;
 
 public class ContentFragment extends Fragment {
+    // The bitmap currently used by ImageView
+    private Bitmap mBitmap = null;
 
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
@@ -48,9 +54,16 @@ public class ContentFragment extends Fragment {
         view.setOnDragListener(new View.OnDragListener() {
             public boolean onDrag(View v, DragEvent event) {
                 switch (event.getAction()) {
+                case DragEvent.ACTION_DRAG_ENTERED:
+                    view.setBackgroundColor(Color.LTGRAY);
+                    break;
+                case DragEvent.ACTION_DRAG_EXITED:
+                    view.setBackgroundColor(Color.TRANSPARENT);
+                    break;
                 case DragEvent.ACTION_DRAG_STARTED:
                     return processDragStarted(event);
                 case DragEvent.ACTION_DROP:
+                    view.setBackgroundColor(Color.TRANSPARENT);
                     return processDrop(event, imageView);
                 }
                 return false;
@@ -59,10 +72,9 @@ public class ContentFragment extends Fragment {
 
         view.setOnClickListener(new OnClickListener() {
 
-            @Override
+
             public void onClick(View v) {
-                ActionBar bar = ContentFragment.this.getActivity()
-                        .getActionBar();
+                ActionBar bar = getActivity().getActionBar();
                 if (bar != null) {
                     if (bar.isShowing()) {
                         bar.hide();
@@ -85,7 +97,7 @@ public class ContentFragment extends Fragment {
         return false;
     }
 
-   boolean processDrop(DragEvent event, ImageView imageView) {
+    private boolean processDrop(DragEvent event, ImageView imageView) {
         // Attempt to parse clip data with expected format: category||entry_id.
         // Ignore event if data does not conform to this format.
         ClipData data = event.getClipData();
@@ -106,14 +118,28 @@ public class ContentFragment extends Fragment {
                     } catch (NumberFormatException exception) {
                         return false;
                     }
-                    imageView.setImageBitmap(
-                        Directory.getCategory(category)
-                                 .getEntry(entryId)
-                                 .getBitmap(getResources()));
+                    updateContentAndRecycleBitmap(category, entryId);
+                    // Update list fragment with selected entry.
+                    TitlesFragment titlesFrag = (TitlesFragment)
+                            getFragmentManager().findFragmentById(R.id.frag_title);
+                    titlesFrag.selectPosition(entryId);
                     return true;
                 }
             }
         }
         return false;
     }
+
+    public void updateContentAndRecycleBitmap(int category, int position) {
+        // Get the bitmap that needs to be drawn and update the ImageView
+        Bitmap next = Directory.getCategory(category).getEntry(position)
+                .getBitmap(getResources());
+        ((ImageView) getView().findViewById(R.id.image)).setImageBitmap(next);
+        if (mBitmap != null) {
+            // This is an advanced call and should be used if you
+            // are working with a lot of bitmaps. The bitmap is dead
+            // after this call.
+            mBitmap.recycle();
+        }
+    }
 }

--- a/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/Directory.java
+++ b/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/Directory.java
@@ -17,13 +17,13 @@
 package com.example.android.hcgallery;
 
 public class Directory {
-    private static DirectoryCategory[] categories;
+    private static DirectoryCategory[] mCategories;
 
     public static void initializeDirectory() {
-        categories = new DirectoryCategory[] {
+      mCategories = new DirectoryCategory[] {
                 new DirectoryCategory("Balloons", new DirectoryEntry[] {
-                        new DirectoryEntry("Green Balloon", R.drawable.green_balloon),
                         new DirectoryEntry("Red Balloon", R.drawable.red_balloon),
+                        new DirectoryEntry("Green Balloon", R.drawable.green_balloon),
                         new DirectoryEntry("Blue Balloon", R.drawable.blue_balloon)}),
                 new DirectoryCategory("Bikes", new DirectoryEntry[] {
                         new DirectoryEntry("Old school huffy", R.drawable.blue_bike),
@@ -42,10 +42,10 @@ public class Directory {
     }
 
     public static int getCategoryCount() {
-        return categories.length;
+        return mCategories.length;
     }
 
     public static DirectoryCategory getCategory(int i) {
-        return categories[i];
+        return mCategories[i];
     }
 }

--- a/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/MainActivity.java
+++ b/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/MainActivity.java
@@ -23,16 +23,22 @@ import android.animation.PropertyValuesHolder;
 import android.animation.ValueAnimator;
 import android.app.ActionBar;
 import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
 import android.app.FragmentManager;
 import android.app.FragmentTransaction;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.Configuration;
+import android.graphics.drawable.ColorDrawable;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.Window;
 
 public class MainActivity extends Activity implements ActionBar.TabListener {
 
@@ -49,16 +55,27 @@ public class MainActivity extends Activity implements ActionBar.TabListener {
             mThemeId = savedInstanceState.getInt("theme");
             this.setTheme(mThemeId);
         }
+
+        requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
         setContentView(R.layout.main);
 
         Directory.initializeDirectory();
 
         ActionBar bar = getActionBar();
 
+        if (mThemeId == android.R.style.Theme_Holo_Light || mThemeId == -1) {
+            bar.setBackgroundDrawable(
+                    new ColorDrawable(getResources().getColor(R.color.actionbar_background_light)));
+        } else {
+            bar.setBackgroundDrawable(
+                    new ColorDrawable(getResources().getColor(R.color.actionbar_background_dark)));
+        }
+
         int i;
-        for (i = 0; i < Directory.getCategoryCount(); i++)
+        for (i = 0; i < Directory.getCategoryCount(); i++) {
             bar.addTab(bar.newTab().setText(Directory.getCategory(i).getName())
                     .setTabListener(this));
+        }
 
         mActionBarView = getLayoutInflater().inflate(
                 R.layout.action_bar_custom, null);
@@ -108,6 +125,7 @@ public class MainActivity extends Activity implements ActionBar.TabListener {
         case R.id.toggleTitles:
             toggleVisibleTitles();
             return true;
+
         case R.id.toggleTheme:
             if (mThemeId == android.R.style.Theme_Holo) {
                 mThemeId = android.R.style.Theme_Holo_Light;
@@ -115,6 +133,12 @@ public class MainActivity extends Activity implements ActionBar.TabListener {
                 mThemeId = android.R.style.Theme_Holo;
             }
             this.recreate();
+            return true;
+
+        case R.id.showDialog:
+            showDialog();
+            return true;
+
         default:
             return super.onOptionsItemSelected(item);
         }
@@ -203,6 +227,19 @@ public class MainActivity extends Activity implements ActionBar.TabListener {
         invalidateOptionsMenu();
     }
 
+    void showDialog() {
+
+        // DialogFragment.show() will take care of adding the fragment
+        // in a transaction.  We also want to remove any currently showing
+        // dialog, so make our own transaction and take care of that here.
+        FragmentTransaction ft = getFragmentManager().beginTransaction();
+
+        DialogFragment newFragment = MyDialogFragment.newInstance("The Dialog Of Awesome");
+
+        // Create and show the dialog.
+        newFragment.show(ft, "dialog");
+    }
+
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         menu.getItem(1).setTitle(mToggleLabels[mLabelIndex]);
@@ -217,4 +254,37 @@ public class MainActivity extends Activity implements ActionBar.TabListener {
         outState.putInt("category", category);
         outState.putInt("theme", mThemeId);
     }
+
+
+    public static class MyDialogFragment extends DialogFragment {
+
+        public static MyDialogFragment newInstance(String title) {
+            MyDialogFragment frag = new MyDialogFragment();
+            Bundle args = new Bundle();
+            args.putString("title", title);
+            frag.setArguments(args);
+            return frag;
+        }
+
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            String title = getArguments().getString("title");
+
+            return new AlertDialog.Builder(getActivity())
+                    .setTitle(title)
+                    .setPositiveButton("OK",
+                            new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int whichButton) {
+                                }
+                            }
+                    )
+                    .setNegativeButton("Cancel",
+                            new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int whichButton) {
+                                }
+                            }
+                    )
+                    .create();
+        }
+    }
 }

--- a/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/TitlesFragment.java
+++ b/samples/Honeycomb-Gallery/src/com/example/android/hcgallery/TitlesFragment.java
@@ -16,14 +16,18 @@
 
 package com.example.android.hcgallery;
 
+import android.app.Fragment;
+import android.app.FragmentManager;
 import android.app.ListFragment;
 import android.content.ClipData;
-import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.graphics.Paint;
+import android.graphics.Typeface;
 import android.os.Bundle;
+import android.text.TextPaint;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
@@ -51,10 +55,8 @@ public class TitlesFragment extends ListFragment {
         lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
         selectPosition(mCurPosition);
         lv.setCacheColorHint(Color.WHITE);
-
         lv.setOnItemLongClickListener(new OnItemLongClickListener() {
 
-            @Override
             public boolean onItemLongClick(AdapterView<?> av, View v, int pos,
                     long id) {
                 final String title = (String) ((TextView) v).getText();
@@ -62,24 +64,36 @@ public class TitlesFragment extends ListFragment {
                 // Set up clip data with the category||entry_id format.
                 final String textData = String.format("%d||%d", mCategory, pos);
                 ClipData data = ClipData.newPlainText(title, textData);
-                v.startDrag(data, new MyDragShadowBuilder(v), null, 0);
+
+                v.startDrag(data, new MyDragShadowBuilder(v, title), null, 0);
                 return true;
             }
         });
     }
 
     private static class MyDragShadowBuilder extends View.DragShadowBuilder {
-        private static Drawable shadow;
-
-        public MyDragShadowBuilder(View v) {
+        private static Drawable mShadow;
+        private static String mLabel;
+        private static int mViewHeight;
+        
+        public MyDragShadowBuilder(View v, String label) {
             super(v);
-            shadow = new ColorDrawable(Color.BLUE);
-            shadow.setBounds(0, 0, v.getWidth(), v.getHeight());
+            mShadow = new ColorDrawable(Color.BLUE);
+            mShadow.setBounds(0, 0, v.getWidth(), v.getHeight());
+            mLabel = label;
+            mViewHeight = v.getHeight();
         }
 
         @Override
         public void onDrawShadow(Canvas canvas) {
-            shadow.draw(canvas);
+            super.onDrawShadow(canvas);
+            mShadow.draw(canvas);
+            Paint paint = new TextPaint();
+            paint.setTextSize(20);
+            paint.setColor(Color.LTGRAY);
+            paint.setTypeface(Typeface.DEFAULT_BOLD);
+            paint.setAntiAlias(true);
+            canvas.drawText(mLabel, 20, (float) (mViewHeight * .6), paint);
         }
     }
 
@@ -99,11 +113,9 @@ public class TitlesFragment extends ListFragment {
     }
 
     private void updateImage(int position) {
-        ImageView iv = (ImageView) getFragmentManager().findFragmentById(
-                R.id.frag_content).getView().findViewById(R.id.image);
-        iv.setImageDrawable(Directory.getCategory(mCategory).getEntry(position)
-                .getDrawable(getResources()));
-        mCurPosition = position;
+        ContentFragment frag = (ContentFragment) getFragmentManager()
+                .findFragmentById(R.id.frag_content);
+        frag.updateContentAndRecycleBitmap(mCategory, position);
     }
 
     public void selectPosition(int position) {