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Polish for the gallery sample demo.

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Change-Id: I3ea34ac090554494bf09e71aaa08a9148a0ab42a
This commit is contained in:
Romain Guy
2010-04-14 14:48:02 -07:00
parent 799c5cad63
commit eae42dbbf2
2 changed files with 53 additions and 28 deletions
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19
samples/ApiDemos/res/layout/gallery_1.xml
View File

@@ -14,8 +14,19 @@
limitations under the License. limitations under the License.
--> -->
<Gallery xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gallery" <LinearLayout
android:layout_width="match_parent" xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content" android:id="@+id/layout2"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Gallery android:id="@+id/gallery"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/> />
<EditText
android:text="@+id/EditText01"
android:id="@+id/EditText01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></EditText>
</LinearLayout>

54
samples/ApiDemos/src/com/example/android/apis/view/Gallery1.java
View File

@@ -71,7 +71,24 @@ public class Gallery1 extends Activity {
} }
public class ImageAdapter extends BaseAdapter { public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground; private static final int ITEM_WIDTH = 136;
private static final int ITEM_HEIGHT = 88;
private final int mGalleryItemBackground;
private final Context mContext;
private final Integer[] mImageIds = {
R.drawable.gallery_photo_1,
R.drawable.gallery_photo_2,
R.drawable.gallery_photo_3,
R.drawable.gallery_photo_4,
R.drawable.gallery_photo_5,
R.drawable.gallery_photo_6,
R.drawable.gallery_photo_7,
R.drawable.gallery_photo_8
};
private final float mDensity;
public ImageAdapter(Context c) { public ImageAdapter(Context c) {
mContext = c; mContext = c;
@@ -81,6 +98,8 @@ public class Gallery1 extends Activity {
mGalleryItemBackground = a.getResourceId( mGalleryItemBackground = a.getResourceId(
R.styleable.Gallery1_android_galleryItemBackground, 0); R.styleable.Gallery1_android_galleryItemBackground, 0);
a.recycle(); a.recycle();
mDensity = c.getResources().getDisplayMetrics().density;
} }
public int getCount() { public int getCount() {
@@ -96,30 +115,25 @@ public class Gallery1 extends Activity {
} }
public View getView(int position, View convertView, ViewGroup parent) { public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext); ImageView imageView;
if (convertView == null) {
convertView = new ImageView(mContext);
i.setImageResource(mImageIds[position]); imageView = (ImageView) convertView;
i.setScaleType(ImageView.ScaleType.FIT_XY); imageView.setScaleType(ImageView.ScaleType.FIT_XY);
i.setLayoutParams(new Gallery.LayoutParams(136, 88)); imageView.setLayoutParams(new Gallery.LayoutParams(
(int) (ITEM_WIDTH * mDensity + 0.5f),
(int) (ITEM_HEIGHT * mDensity + 0.5f)));
// The preferred Gallery item background // The preferred Gallery item background
i.setBackgroundResource(mGalleryItemBackground); imageView.setBackgroundResource(mGalleryItemBackground);
} else {
return i; imageView = (ImageView) convertView;
} }
private Context mContext; imageView.setImageResource(mImageIds[position]);
private Integer[] mImageIds = { return imageView;
R.drawable.gallery_photo_1, }
R.drawable.gallery_photo_2,
R.drawable.gallery_photo_3,
R.drawable.gallery_photo_4,
R.drawable.gallery_photo_5,
R.drawable.gallery_photo_6,
R.drawable.gallery_photo_7,
R.drawable.gallery_photo_8
};
} }
} }