add HttpCacheDemo.java

csh159 · Nov 18, 2013 · a79f58f · a79f58f
1 parent 9bdd28b
commit a79f58f
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Showing 3 changed files with 160 additions and 3 deletions.
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
@@ -70,6 +70,12 @@
             android:label="@string/imagecache_demo_activity_title"
             android:theme="@android:style/Theme.Holo.Light" >
         </activity>
+        <activity
+            android:name=".HttpCacheDemo"
+            android:configChanges="orientation|keyboardHidden"
+            android:label="@string/imagecache_demo_activity_title"
+            android:theme="@android:style/Theme.Holo.Light" >
+        </activity>
         <activity
             android:name=".ImageCacheDemo"
             android:configChanges="orientation|keyboardHidden"

diff --git a/src/cn/trinea/android/demo/DemoList.java b/src/cn/trinea/android/demo/DemoList.java
@@ -21,8 +21,8 @@ public class DemoList extends BaseActivity {
 
     public static final String    TAG      = "DemoList";
 
-    private static final String[] mStrings = { "ImageSDCardCache Demo", "ImageCache Demo", "DropDownListView Demo",
-            "onBottom onTop ScrollView Demo", "DownloadManager Demo", "SearchView Demo",
+    private static final String[] mStrings = { "HttpCache Demo", "ImageSDCardCache Demo", "ImageCache Demo",
+            "DropDownListView Demo", "onBottom onTop ScrollView Demo", "DownloadManager Demo", "SearchView Demo",
             "ViewPager Multi Fragment Demo", "Slide One Page Gallery Demo", "ViewPager Demo", "Service Demo",
             "BroadcastReceiver Demo"      };
 
@@ -45,7 +45,10 @@ public void onCreate(Bundle savedInstanceState) {
 
             @Override
             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-                if (position == total - 10) {
+                if (position == total - 11) {
+                    Intent intent = new Intent(DemoList.this, HttpCacheDemo.class);
+                    startActivity(intent);
+                } else if (position == total - 10) {
                     Intent intent = new Intent(DemoList.this, ImageSDCardCacheDemo.class);
                     startActivity(intent);
                 } else if (position == total - 9) {

diff --git a/src/cn/trinea/android/demo/HttpCacheDemo.java b/src/cn/trinea/android/demo/HttpCacheDemo.java
@@ -0,0 +1,148 @@
+package cn.trinea.android.demo;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.view.Display;
+import android.view.View;
+import android.view.animation.AlphaAnimation;
+import android.widget.ImageView;
+import android.widget.ImageView.ScaleType;
+import android.widget.RelativeLayout;
+import android.widget.RelativeLayout.LayoutParams;
+import cn.trinea.android.common.service.impl.ImageCache;
+import cn.trinea.android.common.service.impl.ImageMemoryCache.OnImageCallbackListener;
+import cn.trinea.android.common.service.impl.RemoveTypeLastUsedTimeFirst;
+
+/**
+ * HttpCacheDemo
+ * 
+ * @author <a href="http://www.trinea.cn" target="_blank">Trinea</a> 2013-11-18
+ */
+public class HttpCacheDemo extends BaseActivity {
+
+    /** column number **/
+    public static final int    COLUMNS                  = 2;
+    /** imageView default height **/
+    public static final int    IMAGEVIEW_DEFAULT_HEIGHT = 400;
+    public static final String TAG_CACHE                = "image_cache";
+
+    private RelativeLayout     parentLayout;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState, R.layout.image_cache_demo);
+
+        Context context = getApplicationContext();
+        parentLayout = (RelativeLayout)findViewById(R.id.image_cache_parent_layout);
+        initImageUrlList();
+        IMAGE_CACHE.initData(this, TAG_CACHE);
+        IMAGE_CACHE.setContext(context);
+
+        int count = 0, viewId = 0x7F24FFF0;
+        int verticalSpacing, horizontalSpacing;
+        verticalSpacing = horizontalSpacing = getResources().getDimensionPixelSize(R.dimen.dp_4);
+        Display display = getWindowManager().getDefaultDisplay();
+        int imageWidth = (display.getWidth() - (COLUMNS + 1) * horizontalSpacing) / COLUMNS;
+        for (String imageUrl : imageUrlList) {
+            ImageView imageView = new ImageView(context);
+            imageView.setId(++viewId);
+            imageView.setScaleType(ScaleType.CENTER);
+            imageView.setBackgroundResource(R.drawable.image_border);
+            parentLayout.addView(imageView);
+
+            // set imageView layout params
+            LayoutParams layoutParams = (RelativeLayout.LayoutParams)imageView.getLayoutParams();
+            layoutParams.width = imageWidth;
+            layoutParams.topMargin = verticalSpacing;
+            layoutParams.rightMargin = horizontalSpacing;
+            int column = count % COLUMNS;
+            int row = count / COLUMNS;
+            if (row > 0) {
+                layoutParams.addRule(RelativeLayout.BELOW, viewId - COLUMNS);
+            }
+            if (column > 0) {
+                layoutParams.addRule(RelativeLayout.RIGHT_OF, viewId - 1);
+            }
+
+            // get image
+            if (!IMAGE_CACHE.get(imageUrl, imageView)) {
+                imageView.setImageResource(R.drawable.trinea);
+                layoutParams.height = IMAGEVIEW_DEFAULT_HEIGHT;
+            }
+            count++;
+        }
+    }
+
+    @Override
+    protected void onDestroy() {
+        IMAGE_CACHE.saveDataToDb(this, TAG_CACHE);
+        super.onDestroy();
+    }
+
+    /** icon cache **/
+    public static final ImageCache IMAGE_CACHE = new ImageCache(128, 512);
+
+    static {
+        /** init icon cache **/
+        OnImageCallbackListener imageCallBack = new OnImageCallbackListener() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public void onImageLoaded(String imageUrl, Drawable imageDrawable, View view, boolean isInCache) {
+                if (view != null && imageDrawable != null) {
+                    ImageView imageView = (ImageView)view;
+                    imageView.setImageDrawable(imageDrawable);
+                    // first time show with animation
+                    if (!isInCache) {
+                        imageView.startAnimation(getInAlphaAnimation(2000));
+                    }
+
+                    // auto set height accroding to rate between height and weight
+                    LayoutParams imageParams = (LayoutParams)imageView.getLayoutParams();
+                    imageParams.height = imageParams.width * imageDrawable.getIntrinsicHeight()
+                                         / imageDrawable.getIntrinsicWidth();
+                    imageView.setScaleType(ScaleType.FIT_XY);
+                }
+            }
+        };
+        IMAGE_CACHE.setOnImageCallbackListener(imageCallBack);
+        IMAGE_CACHE.setCacheFullRemoveType(new RemoveTypeLastUsedTimeFirst<Drawable>());
+
+        IMAGE_CACHE.setHttpReadTimeOut(10000);
+        IMAGE_CACHE.setOpenWaitingQueue(true);
+        IMAGE_CACHE.setValidTime(-1);
+    }
+
+    public static AlphaAnimation getInAlphaAnimation(long durationMillis) {
+        AlphaAnimation inAlphaAnimation = new AlphaAnimation(0, 1);
+        inAlphaAnimation.setDuration(durationMillis);
+        return inAlphaAnimation;
+    }
+
+    private List<String> imageUrlList;
+
+    private void initImageUrlList() {
+        imageUrlList = new ArrayList<String>();
+        imageUrlList.add("http://farm8.staticflickr.com/7403/9146300103_03423db0cc.jpg");
+        imageUrlList.add("http://farm4.staticflickr.com/3755/9148527824_6c156185ea.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7409/9148527822_36fa37d7ca_z.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7403/9146300103_03423db0cc.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7318/9148527808_e804baef0b.jpg");
+        imageUrlList.add("http://farm3.staticflickr.com/2857/9148527928_3063544889.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7318/9146300275_5fe995d123.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7351/9148527976_8a4e75ae87.jpg");
+        imageUrlList.add("http://farm4.staticflickr.com/3679/9146300263_5c2191232a_o.jpg");
+        imageUrlList.add("http://farm3.staticflickr.com/2863/9148527892_31f9377351_o.jpg");
+        imageUrlList.add("http://farm3.staticflickr.com/2888/9148527996_f05118d7de_o.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7310/9148528008_8e8f51997a.jpg");
+        imageUrlList.add("http://farm3.staticflickr.com/2849/9148528108_dfcda19507.jpg");
+        imageUrlList.add("http://farm4.staticflickr.com/3739/9148528022_e9bf03058f.jpg");
+        imageUrlList.add("http://farm4.staticflickr.com/3696/9146300409_dfa9d7c603.jpg");
+        imageUrlList.add("http://farm8.staticflickr.com/7288/9146300469_bd3420c75b_z.jpg");
+    }
+}