Get package name of another app by app name

问题:

I want to know the package name of an app and i only know the app name of that app. suppose i want to know the package name of an email app by just its name then how to get it
i just know the app name.

final PackageManager pm = getPackageManager();
//get a list of installed apps.
List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo packageInfo : packages) {
     Log.d(TAG, "Installed package :" + packageInfo.packageName);
     Log.d(TAG, "Launch Activity :" + pm.getLaunchIntentForPackage(packageInfo.packageName));
}

this is the code to get the package name of all the app but i need to know for particular app.

回答1:

Should be something like this, since the app name is not unique you can have multiple package names that matches your requested app name.

Keep in mind that my function will return only the first package name that matches (you can change this logic very easily):

public String getPackNameByAppName(String name) {
    PackageManager pm = context.getPackageManager();
    List<ApplicationInfo> l = pm.getInstalledApplications(PackageManager.GET_META_DATA);
    String packName = “”;
    for (ApplicationInfo ai : l) {
        String n = (String)pm.getApplicationLabel(ai);
        if (n.contains(name) || name.contains(n)){
            packName = ai.packageName;
        }
    }

    return packName;    
}

You use TextUtils.isEmpty method to check whether you got a result or not.

回答2:

Below is the code that will help to get Package Name of all installed apps

final PackageManager pkgmanager = getPackageManager();
String TAG = "Application Info";

//Return a list of installed apps.
List<ApplicationInfo> packages =  pkgmanager.getInstalledApplications(PackageManager.GET_META_DATA);

for (ApplicationInfo pkgInfo : packages) {
    Log.d(TAG, "Installed package :" + pkgInfo .packageName);
    Log.d(TAG, "Source dir : " + pkgInfo .sourceDir); 
}

Hope this will helps

Summved