デスクトップを作成し、アプリのアイコンを取得します。しかし、元のデスクトップよりも曖昧になります。どうしてか分かりません。アイコンのサイズは同じです。レイアウト:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingTop="15dip">
<ImageView
android:id="@+id/appIcon"
android:layout_gravity="center"
android:layout_width="40dip"
android:layout_height="40dip"/>
<TextView
android:id="@+id/appName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:textColor="#FFFF"
android:maxLines="1"
android:fadingEdge="horizontal"
android:gravity="center"
android:paddingTop="10dip"
android:paddingBottom="10dip"/>
</LinearLayout>
アプリ コードを取得します。
final PackageManager packageManager = getPackageManager();
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
//get all apps
final List<ResolveInfo> apps = packageManager.queryIntentActivities(mainIntent, 0);
GridView appPage = (GridView) findViewById(R.id.all_app_grid);
appPage.setAdapter(new AppAdapter(this, apps));
そして、モニターからアプリのアイコン コードを取得します。
Bitmap bmp = Utilities.createIconBitmap(appInfo.loadIcon(pm), mContext);
appItem.mAppIcon.setImageDrawable(appInfo.loadIcon(pm));
static Bitmap createIconBitmap(Drawable icon, Context context) {
synchronized (sCanvas) { // we share the statics :-(
if (sIconWidth == -1) {
initStatics(context);
}
int width = sIconWidth;
int height = sIconHeight;
if (icon instanceof PaintDrawable) {
PaintDrawable painter = (PaintDrawable) icon;
painter.setIntrinsicWidth(width);
painter.setIntrinsicHeight(height);
} else if (icon instanceof BitmapDrawable) {
// Ensure the bitmap has a density.
BitmapDrawable bitmapDrawable = (BitmapDrawable) icon;
Bitmap bitmap = bitmapDrawable.getBitmap();
if (bitmap.getDensity() == Bitmap.DENSITY_NONE) {
bitmapDrawable.setTargetDensity(context.getResources().getDisplayMetrics());
}
}
int sourceWidth = icon.getIntrinsicWidth();
int sourceHeight = icon.getIntrinsicHeight();
if (sourceWidth > 0 && sourceHeight > 0) {
// There are intrinsic sizes.
if (width < sourceWidth || height < sourceHeight) {
// It's too big, scale it down.
final float ratio = (float) sourceWidth / sourceHeight;
if (sourceWidth > sourceHeight) {
height = (int) (width / ratio);
} else if (sourceHeight > sourceWidth) {
width = (int) (height * ratio);
}
} else if (sourceWidth < width && sourceHeight < height) {
// Don't scale up the icon
width = sourceWidth;
height = sourceHeight;
}
}
// no intrinsic size --> use default size
int textureWidth = sIconTextureWidth;
int textureHeight = sIconTextureHeight;
final Bitmap bitmap = Bitmap.createBitmap(textureWidth, textureHeight,
Bitmap.Config.ARGB_8888);
final Canvas canvas = sCanvas;
canvas.setBitmap(bitmap);
final int left = (textureWidth-width) / 2;
final int top = (textureHeight-height) / 2;
if (false) {
// draw a big box for the icon for debugging
canvas.drawColor(sColors[sColorIndex]);
if (++sColorIndex >= sColors.length) sColorIndex = 0;
Paint debugPaint = new Paint();
debugPaint.setColor(0xffcccc00);
canvas.drawRect(left, top, left+width, top+height, debugPaint);
}
sOldBounds.set(icon.getBounds());
icon.setBounds(left, top, left+width, top+height);
icon.draw(canvas);
icon.setBounds(sOldBounds);
canvas.setBitmap(null);
return bitmap;
}
}