45 lines
1.2 KiB
Java
45 lines
1.2 KiB
Java
package org.sufficientlysecure.keychain.ui.util;
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import java.util.HashMap;
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import android.content.Context;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.graphics.drawable.Drawable;
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public class PackageIconGetter {
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private final PackageManager packageManager;
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private final HashMap<String, Drawable> appIconCache = new HashMap<>();
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public static PackageIconGetter getInstance(Context context) {
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PackageManager pm = context.getPackageManager();
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return new PackageIconGetter(pm);
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}
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private PackageIconGetter(PackageManager packageManager) {
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this.packageManager = packageManager;
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}
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public Drawable getDrawableForPackageName(String packageName) {
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if (appIconCache.containsKey(packageName)) {
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return appIconCache.get(packageName);
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}
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try {
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ApplicationInfo ai = packageManager.getApplicationInfo(packageName, 0);
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Drawable appIcon = packageManager.getApplicationIcon(ai);
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appIconCache.put(packageName, appIcon);
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return appIcon;
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} catch (PackageManager.NameNotFoundException e) {
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return null;
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}
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}
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}
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