Android：如何以编程方式获取apk文件的名称？

Question

由于某些原因，我的应用程序可以使用不同的 apk 名称进行安装。在启动时，我想知道 apk 文件的名称是什么。你知道该怎么做吗？

谢谢 ！

Answer 1

试试这个它对我有用：

String versionName = "null"; //String apk versionName
                int versionCode = -1; //int versionCode
                String APKFilePath = "/storage/emulated/0/apkname.apk"; //For example
                PackageManager pm = getPackageManager();
                PackageInfo    packageInfo = pm.getPackageArchiveInfo(APKFilePath, 0);
                // the secret are these two lines
                packageInfo.applicationInfo.sourceDir       = APKFilePath;
                packageInfo.applicationInfo.publicSourceDir = APKFilePath;
                Drawable APKicon = packageInfo.applicationInfo.loadIcon(pm); //drawable apk icon
                String   AppName = (String)packageInfo.applicationInfo.loadLabel(pm); // String apk name
                    versionName = packageInfo.versionName; //String version name
                    versionCode = packageInfo.versionCode; //int version code
                    apk_icon.setImageDrawable(APKicon);    //ImageView apk icon
                    Apkpackage.setText(packageInfo.packageName); //TextView apk package name
                    Apkname.setText(AppName); //TextView apk name
                    Apkversion.setText(String.format("Version Name: %s Version Code:%d", versionName, versionCode)); //TextView versionName and versionCode
                
            

Answer 2

final PackageManager pm = getPackageManager();
String apkName = "example.apk";
String fullPath = Environment.getExternalStorageDirectory() + "/" + apkName;        
PackageInfo info = pm.getPackageArchiveInfo(fullPath, 0);

你可以通过以下方式得到它：

info.versionCod

希望

info.versionName

这对你有帮助

Answer 3

可以使用包管理器检索 apk 或应用程序名称。
根据亚历克斯在这里的回答 - https://stackoverflow.com/a/30348666/2026280

假设您有apk 文件。

public static String getAppLabel(PackageManager pm, String pathToApk) {  
PackageInfo packageInfo = pm.getPackageArchiveInfo(pathToApk, 0);

if (Build.VERSION.SDK_INT >= 8) {
    // those two lines do the magic:
    packageInfo.applicationInfo.sourceDir = pathToApk;
    packageInfo.applicationInfo.publicSourceDir = pathToApk;
}

CharSequence label = pm.getApplicationLabel(packageInfo.applicationInfo);
return label != null ? label.toString() : null;
}

Answer 4

试试这个：

ActivityManager actMngr = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
string runningPkg = actMngr.getRunningTasks(1).get(0).topActivity.getPackageName();

PackageManager pm = context.getPackageManager();
ApplicationInfo ai = pm.getApplicationInfo(runningPkg , 0);

添加：

如果您没有获得 apk 名称，那么您可以将其与安装的 pkg 进行比较并获取相应的应用程序名称。您可以像这样获取已安装应用程序的 pkg 名称和应用程序名称：

ArrayList<PackageInfo> res = new ArrayList<PackageInfo>();
PackageManager pm = ctx.getPackageManager();
List<PackageInfo> packs = pm.getInstalledPackages(0);

for(int i=0;i<packs.size();i++) {
    PackageInfo p = packs.get(i);
    String description = (String) p.applicationInfo.loadDescription(pm);
    String  label= p.applicationInfo.loadLabel(pm).toString();
//Continue to extract other info about the app...
}

注意：将此权限添加到清单文件中：

<uses-permission android:name="android.permission.GET_TASKS" />

Answer 5

这是通过 从已打包的 apk 文件中获取PackageArchiveInfo：

  PackageInfo package_info = pm.getPackageArchiveInfo(file_path_to_apk, 0);