android获取sd卡上未安装的apk文件的图标
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- package lab.sodino.fetchapkicon;
- import java.io.File;
- import java.lang.reflect.Constructor;
- import java.lang.reflect.Field;
- import java.lang.reflect.Method;
- 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;
-
-
-
-
- public class FetchAPKIconAct extends Activity {
- 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");
- }
-
- 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);
- }
- }
-
- 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);
- }
-
-
-
-
- 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();
- }
- }
- }