读取未安装apk信息
- String apkPath="sdcard/download/xxx.apk";
- PackageManager pm = getPackageManager();
- PackageInfo info = pm.getPackageArchiveInfo(apkPath, PackageManager.GET_ACTIVITIES);
- ApplicationInfo appInfo = info.applicationInfo;
- String appName = pm.getApplicationLabel(appInfo).toString();
- //得到安装包名称
- String packageName = appInfo.packageName;
- //得到版本信息
- String version=info.versionName;
- String code=info.versionCode;
- //图标信息
- Drawable icon = pm.getApplicationIcon(appInfo);
2.2之后 获取图标方法没用了需要自己解析图标
- //此方法是转载(非原创)
- private Drawable getAPKIcon(String apkPath) {
- String PATH_PackageParser = "android.content.pm.PackageParser";
- String PATH_AssetManager = "android.content.res.AssetManager";
- try {
- // apk包的文件路径
- // 这是一个Package 解释器, 是隐藏的
- // 构造函数的参数只有一个, apk文件的路径
- // PackageParser packageParser = new PackageParser(apkPath);
- 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);
- // 这个是与显示有关的, 里面涉及到一些像素显示等等, 我们使用默认的情况
- DisplayMetrics metrics = new DisplayMetrics();
- metrics.setToDefaults();
- // PackageParser.Package mPkgInfo = packageParser.parsePackage(new
- // File(apkPath), apkPath,
- // metrics, 0);
- 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);
- // 应用程序信息包, 这个公开的, 不过有些函数, 变量没公开
- // ApplicationInfo info = mPkgInfo.applicationInfo;
- Field appInfoFld = pkgParserPkg.getClass().getDeclaredField("applicationInfo");
- ApplicationInfo info = (ApplicationInfo) appInfoFld.get(pkgParserPkg);
- // uid 输出为"-1",原因是未安装,系统未分配其Uid。
- Log.d("ANDROID_LAB", "pkg:" + info.packageName + " uid=" + info.uid);
- // Resources pRes = getResources();
- // AssetManager assmgr = new AssetManager();
- // assmgr.addAssetPath(apkPath);
- // Resources res = new Resources(assmgr, pRes.getDisplayMetrics(),
- // pRes.getConfiguration());
- 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 = mContext.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 (info.icon != 0) {
- Drawable icon = res.getDrawable(info.icon);
- return icon;
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- return null;
- }