Add sample app to bitmap library.

Change-Id: Iec98361f576289447a274f51694d46974f1534ac

3 files changed, 212 insertions, 0 deletions

diff --git a/sample/src/com/example/bitmapsample/BitmapRequestKeyImpl.java b/sample/src/com/example/bitmapsample/BitmapRequestKeyImpl.java
new file mode 100644
index 0000000..a4705c5
--- /dev/null
+++ b/sample/src/com/example/bitmapsample/BitmapRequestKeyImpl.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package com.example.bitmapsample;
+
+import android.content.res.AssetFileDescriptor;
+
+import com.android.bitmap.RequestKey;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+public class BitmapRequestKeyImpl implements RequestKey {
+    public final String mUriString;
+    public final URL mUrl;
+
+    public BitmapRequestKeyImpl(String uriString) {
+        mUriString = uriString;
+        URL url = null;
+        try {
+            url = new URL(uriString);
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+        mUrl = url;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null || !(o instanceof BitmapRequestKeyImpl)) {
+            return false;
+        }
+        final BitmapRequestKeyImpl other = (BitmapRequestKeyImpl) o;
+        return mUriString.equals(other.mUriString);
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 17;
+        hash += 31 * hash + mUriString.hashCode();
+        return hash;
+    }
+
+    @Override
+    public String toString() {
+        final StringBuilder sb = new StringBuilder("[");
+        sb.append(mUriString);
+        sb.append("]");
+        return sb.toString();
+    }
+
+    @Override
+    public AssetFileDescriptor createFd() throws IOException {
+        return null;
+    }
+
+    @Override
+    public InputStream createInputStream() throws IOException {
+        return mUrl.openStream();
+    }
+
+    @Override
+    public boolean hasOrientationExif() throws IOException {
+        return false;
+    }
+
+}
\ No newline at end of file
diff --git a/sample/src/com/example/bitmapsample/BitmapView.java b/sample/src/com/example/bitmapsample/BitmapView.java
new file mode 100644
index 0000000..5ca7dcd
--- /dev/null
+++ b/sample/src/com/example/bitmapsample/BitmapView.java
@@ -0,0 +1,44 @@
+package com.example.bitmapsample;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+
+import com.android.bitmap.BitmapCache;
+import com.android.bitmap.drawable.BasicBitmapDrawable;
+
+public class BitmapView extends View {
+    private BasicBitmapDrawable mBitmapDrawable;
+    private float mDensity;
+
+    public BitmapView(Context c) {
+        this(c, null);
+    }
+
+    public BitmapView(Context c, AttributeSet attrs) {
+        super(c, attrs);
+        mDensity = getResources().getDisplayMetrics().density;
+    }
+
+    @Override
+    protected int getSuggestedMinimumHeight() {
+        return (int) (100 * mDensity);
+    }
+
+    @Override
+    protected void onSizeChanged(final int w, final int h, int oldw, int oldh) {
+        mBitmapDrawable.setDecodeDimensions(w, h);
+    }
+
+    public void setImage(String uriString) {
+        if (mBitmapDrawable != null) {
+            mBitmapDrawable.bind(new BitmapRequestKeyImpl(uriString));
+        }
+    }
+
+    public void initialize(BitmapCache cache) {
+        mBitmapDrawable = new BasicBitmapDrawable(getResources(), cache);
+        setBackground(mBitmapDrawable);
+    }
+
+}
\ No newline at end of file
diff --git a/sample/src/com/example/bitmapsample/MainActivity.java b/sample/src/com/example/bitmapsample/MainActivity.java
new file mode 100644
index 0000000..6b612d4
--- /dev/null
+++ b/sample/src/com/example/bitmapsample/MainActivity.java
@@ -0,0 +1,86 @@
+package com.example.bitmapsample;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ListView;
+
+import com.android.bitmap.BitmapCache;
+import com.android.bitmap.UnrefedBitmapCache;
+import com.android.bitmap.util.Trace;
+import com.example.bitmapcachesample.R;
+
+public class MainActivity extends Activity {
+    private ListView mListView;
+
+    private static final int TARGET_CACHE_SIZE_BYTES = 5 * 1024 * 1024;
+    private final BitmapCache mCache = new UnrefedBitmapCache(TARGET_CACHE_SIZE_BYTES, 0.1f, 0);
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        Trace.init();
+        mListView = (ListView) findViewById(R.id.list);
+        mListView.setAdapter(new MyAdapter());
+    }
+
+    private class MyAdapter extends BaseAdapter {
+
+        private final String[] mItems;
+
+        private final String[] ITEMS = new String[]{
+                "https://www.google.com/images/srpr/logo4w.png",
+                "http://www.google.com/logos/2012/celibidache12-hp.jpg",
+                "http://www.google.com/logos/2012/clara_schuman-2012-hp.jpg",
+                "http://www.google.com/logos/2011/royalwedding11-hp.png",
+                "http://www.google.com/logos/2012/vets_day-12-hp.jpg",
+                "http://www.google.com/logos/2011/firstmaninspace11-hp-js.jpg",
+                "http://www.google.com/logos/2011/nat-sov-and-childrens-turkey-hp.png",
+                "http://www.google.com/logos/2012/First_Day_Of_School_Isreal-2012-hp.jpg",
+                "http://www.google.com/logos/2012/celibidache12-hp.jpg",
+                "http://www.google.com/logos/2012/korea12-hp.png"
+        };
+
+        private static final int COPIES = 50;
+
+        public MyAdapter() {
+            mItems = new String[ITEMS.length * COPIES];
+            for (int i = 0; i < COPIES; i++) {
+                for (int j = 0; j < ITEMS.length; j++) {
+                    mItems[i * ITEMS.length + j] = ITEMS[j];
+                }
+            }
+        }
+
+        @Override
+        public int getCount() {
+            return mItems.length;
+        }
+
+        @Override
+        public Object getItem(int position) {
+            return mItems[position];
+        }
+
+        @Override
+        public long getItemId(int position) {
+            return position;
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            BitmapView v;
+            if (convertView != null) {
+                v = (BitmapView) convertView;
+            } else {
+                v = new BitmapView(MainActivity.this);
+                v.initialize(mCache);
+            }
+            v.setImage(mItems[position]);
+            return v;
+        }
+    }
+}