Wednesday, 3 July 2013

How to obtain uninstall APK Icon


The following activity is an example of showing how to fetch the uninstall APK icon. package example.uninstallAPKicon;

import android.app.Activity;  
import android.content.Context;  
import android.content.pm.ApplicationInfo;  
import android.content.pm.PackageInfo;  
import android.content.pm.PackageManager;  
import android.content.res.Resources;  
import android.graphics.drawable.Drawable;  
import android.os.Bundle;  
import android.util.DisplayMetrics;  
import android.util.Log;  
import android.view.View;  
import android.widget.ImageView;  
import java.io.File;  
import java.lang.reflect.*;  


public class FetchAPKIconActiviy extends Activity {  


   
 public void getUninatllApkInfo(Context context, String archiveFilePath) {  
  PackageManager pm = context.getPackageManager();  
  PackageInfo info = pm.getPackageArchiveInfo(archiveFilePath, PackageManager.GET_ACTIVITIES);  
  if (info != null) {  
   ApplicationInfo appInfo = info.applicationInfo;  
   Drawable icon = pm.getApplicationIcon(appInfo);  
   ImageView image = (ImageView) findViewById(R.id.apkIconByTradition);  
   image.setVisibility(View.VISIBLE);  
   image.setImageDrawable(icon);  
  }  
 }  
 
 public void onCreate(Bundle savedInstanceState) {  
  super.onCreate(savedInstanceState);  
  setContentView(R.layout.main);  
  showUninstallAPKIcon("/sdcard/APK/JarodYv.FishPool.apk");  
  getUninatllApkInfo(this, "/sdcard/APK/JarodYv.FishPool.apk");  
 }  

 private void showUninstallAPKIcon(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);  
   Log.d("ANDROID_LAB", "pkgParser:" + pkgParser.toString()); 

   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);  
  
   Log.d("ANDROID_LAB", "pkg:" + info.packageName + " uid=" + info.uid);  
  
   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 = 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);  
   CharSequence label = null;  
   if (info.labelRes != 0) {  
    label = res.getText(info.labelRes);  
   }  
   // if (label == null) {  
   // label = (info.nonLocalizedLabel != null) ? info.nonLocalizedLabel  
   // : info.packageName;  
   // }  
   Log.d("ANDROID_LAB", "label=" + label);  

   if (info.icon != 0) {  
    Drawable icon = res.getDrawable(info.icon);  
    ImageView image = (ImageView) findViewById(R.id.apkIconBySodino);  
    image.setVisibility(View.VISIBLE);  
    image.setImageDrawable(icon);  
   }  
  } catch (Exception e) {  
   e.printStackTrace();  
  }  
 }  
}  

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