Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
import java.io.File;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.util.DisplayMetrics;

public class Main {

    public static Drawable showUninstallAPKIcon(Context context, String apkPath) {
        String PATH_PackageParser = "android.content.pm.PackageParser";
        String PATH_AssetManager = "android.content.res.AssetManager";
        try {
            Class<?> pkgParserCls = Class.forName(PATH_PackageParser);
            Class<?>[] typeArgs = new Class[1];
            typeArgs[0] = String.class;
            Constructor<?> pkgParserCt = pkgParserCls.getConstructor(typeArgs);
            Object[] valueArgs = new Object[1];
            valueArgs[0] = apkPath;
            Object pkgParser = pkgParserCt.newInstance(valueArgs);
            DisplayMetrics metrics = new DisplayMetrics();
            metrics.setToDefaults();
            typeArgs = new Class[4];
            typeArgs[0] = File.class;
            typeArgs[1] = String.class;
            typeArgs[2] = DisplayMetrics.class;
            typeArgs[3] = Integer.TYPE;
            Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", typeArgs);
            valueArgs = new Object[4];
            valueArgs[0] = new File(apkPath);
            valueArgs[1] = apkPath;
            valueArgs[2] = metrics;
            valueArgs[3] = 0;
            Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, valueArgs);
            Field appInfoFld = pkgParserPkg.getClass().getDeclaredField("applicationInfo");
            ApplicationInfo info = (ApplicationInfo) appInfoFld.get(pkgParserPkg);
            Class<?> assetMagCls = Class.forName(PATH_AssetManager);
            Constructor<?> assetMagCt = assetMagCls.getConstructor((Class[]) null);
            Object assetMag = assetMagCt.newInstance((Object[]) null);
            typeArgs = new Class[1];
            typeArgs[0] = String.class;
            Method assetMag_addAssetPathMtd = assetMagCls.getDeclaredMethod("addAssetPath", typeArgs);
            valueArgs = new Object[1];
            valueArgs[0] = apkPath;
            assetMag_addAssetPathMtd.invoke(assetMag, valueArgs);
            Resources res = context.getResources();
            typeArgs = new Class[3];
            typeArgs[0] = assetMag.getClass();
            typeArgs[1] = res.getDisplayMetrics().getClass();
            typeArgs[2] = res.getConfiguration().getClass();
            Constructor<?> resCt = Resources.class.getConstructor(typeArgs);
            valueArgs = new Object[3];
            valueArgs[0] = assetMag;
            valueArgs[1] = res.getDisplayMetrics();
            valueArgs[2] = res.getConfiguration();
            res = (Resources) resCt.newInstance(valueArgs);
            if (info.icon != 0) {
                Drawable icon = res.getDrawable(info.icon);
                return icon;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}