May be the easy one to see the source: In Android studio 2.3, Build -> Analyze APK -> Select the apk that you want to decompile . You will see it's source code.
If you download an apk to your computer you simply transfer the file to your phone's micro sd card via usb then you open Astro File Manager. Once there all the contents of your Sd card are displayed and you can simply tap on the apk your transferred and hit install.
Accessing /data/app is possible without root permission; the permissions on that directory are rwxrwx--x. Execute permission on a directory means you can access it, however lack of read permission means you cannot obtain a listing of its contents -- so in order to access it you must know the name of the file that you will be accessing. Android's package manager will tell you the name of the stored apk for a given package.
To do this from the command line, use adb shell pm list packages
to get the list of installed packages and find the desired package.
With the package name, we can get the actual file name and location of the APK using adb shell pm path your-package-name
.
And knowing the full directory, we can finally pull the adb using adb pull full/directory/of/the.apk
Credit to @tarn for pointing out that under Lollipop, the apk path will be /data/app/your-package-name-1/base.apk
Android appends a sequence number to the package name to produce the final APK file name (it's possible that this varies with the version of Android OS). The following sequence of commands works on a non-rooted device:
Get the full path name of the APK file for the desired package.
adb shell pm path com.example.someapp
This gives the output as: package:/data/app/com.example.someapp-2.apk
.
Pull the APK file from the Android device to the development box.
adb pull /data/app/com.example.someapp-2.apk
The location of APK after successful pulling will be at ../sdk/platform-tools/base.apk on your pc/laptop.
You don't need ROOT permissions to get the list of Installed Apps.
You can do it with android PackageManager.
Below is a small code snippet.
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, "Apk file path:" + packageInfo.sourceDir);
}
On Nougat(7.0) Android version run adb shell pm list packages
to list the packages installed on the device.
Then run adb shell pm path your-package-name
to show the path of the apk.
After use adb to copy the package to Downloads adb shell cp /data/app/com.test-1/base.apk /storage/emulated/0/Download
.
Then pull the apk from Downloads to your machine by running adb pull /storage/emulated/0/Download/base.apk
.
When you have Eclipse for Android developement installed:
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