Is process name same as package name in android?

问题

By process I mean what we provide in android:process and by package I mean package in

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.osg.appkiller"
    android:versionCode="1"
    android:versionName="1.0" >

More details Processes and Threads - Android Developer

I wanted to get application names of all running apps. So this is what I did after looking at various sources (and it works).

    ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    PackageManager packageManager = getPackageManager();
    final List<RunningAppProcessInfo> runningProcesses = activityManager.getRunningAppProcesses();
    for(RunningAppProcessInfo processInfo : runningProcesses) {
        CharSequence appName = null;
        try {
            appName = packageManager.getApplicationLabel(packageManager.getApplicationInfo(processInfo.processName, PackageManager.GET_META_DATA));
        } catch (NameNotFoundException e) {
            Log.e(TAG,"Application info not found for process : " + processInfo.processName,e);
        }
    }

If you see Documentation for PackageManager.getApplicationInfo

ApplicationInfo android.content.pm.PackageManager.getApplicationInfo(String packageName, int flags) throws NameNotFoundException

but I am passing

processInfo.processName

where processName is name of process running. So we are basically using process name as package name to get application info.

First of all is this approach correct ?
Secondly is it true that if we do not provide process for activities/services etc new process is created with same name as that of package name ?

回答1:

By default android takes the package name as the process name. But if you define process property in application tag in manifest file android:process="com.example.newprocessname" then the application will run with this name "com.example.newprocessname".

As for your questions,

1-> In this case your application name is same as the default package name, that's why it is working. Try changing the process name. It'll not work.
2-> That's true. It is by default. Refer to "android:process" in the following link: https://developer.android.com/guide/topics/manifest/application-element.html

Hope this answers your question!

来源：https://stackoverflow.com/questions/27571889/is-process-name-same-as-package-name-in-android

标签

android

process

task

activity-manager