Bagaimana cara mendapatkan nama paket dari mana saja?

Saya mengetahui ketersediaan Context.getApplicationContext () dan View.getContext () , di mana saya dapat benar-benar memanggil Context.getPackageName () untuk mengambil nama paket aplikasi.

Mereka bekerja jika saya memanggil dari metode yang tersedia untuk suatu Viewatau Activityobjek, tetapi jika saya ingin mencari nama paket dari kelas yang benar-benar independen tanpa Viewatau Activity, apakah ada cara untuk melakukan itu (langsung atau tidak langsung)?

Gagasannya adalah untuk memiliki variabel statis dalam aktivitas utama Anda, dipakai untuk menjadi nama paket. Kemudian hanya referensi variabel itu.

Anda harus menginisialisasi dalam metode kegiatan utama onCreate():

Global ke kelas:

public static String PACKAGE_NAME;

Kemudian..

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    PACKAGE_NAME = getApplicationContext().getPackageName();
}

Anda kemudian dapat mengaksesnya melalui Main.PACKAGE_NAME.

Jika Anda menggunakan gradle-android-plugin untuk membangun aplikasi Anda, maka Anda dapat menggunakannya

BuildConfig.APPLICATION_ID

untuk mengambil nama paket dari ruang lingkup apa pun, termasuk. yang statis.

Jika dengan kata "di mana saja" yang Anda maksud tanpa memiliki eksplisit Context(misalnya dari utas latar belakang) Anda harus mendefinisikan kelas dalam proyek Anda seperti:

public class MyApp extends Application {
    private static MyApp instance;

    public static MyApp getInstance() {
        return instance;
    }

    public static Context getContext(){
        return instance;
        // or return instance.getApplicationContext();
    }

    @Override
    public void onCreate() {
        instance = this;
        super.onCreate();
    }
}

Kemudian di Anda, manifestAnda perlu menambahkan kelas ini ke Namebidang di Applicationtab. Atau edit xml dan masukkan

<application
    android:name="com.example.app.MyApp"
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    .......
    <activity
        ......

dan kemudian dari mana saja Anda dapat menelepon

String packagename= MyApp.getContext().getPackageName();

Semoga ini bisa membantu.

Jika Anda menggunakan gradle build, gunakan ini: BuildConfig.APPLICATION_IDuntuk mendapatkan nama paket aplikasi.

private String getApplicationName(Context context, String data, int flag) {

   final PackageManager pckManager = context.getPackageManager();
   ApplicationInfo applicationInformation;
   try {
       applicationInformation = pckManager.getApplicationInfo(data, flag);
   } catch (PackageManager.NameNotFoundException e) {
       applicationInformation = null;
   }
   final String applicationName = (String) (applicationInformation != null ? pckManager.getApplicationLabel(applicationInformation) : "(unknown)");
   return applicationName;

}

Anda bisa mendapatkan nama paket Anda seperti ini:

$ /path/to/adb shell 'pm list packages -f myapp'
package:/data/app/mycompany.myapp-2.apk=mycompany.myapp

Berikut ini opsinya:

$ adb
Android Debug Bridge version 1.0.32
Revision 09a0d98bebce-android

 -a                            - directs adb to listen on all interfaces for a connection
 -d                            - directs command to the only connected USB device
                                 returns an error if more than one USB device is present.
 -e                            - directs command to the only running emulator.
                                 returns an error if more than one emulator is running.
 -s <specific device>          - directs command to the device or emulator with the given
                                 serial number or qualifier. Overrides ANDROID_SERIAL
                                 environment variable.
 -p <product name or path>     - simple product name like 'sooner', or
                                 a relative/absolute path to a product
                                 out directory like 'out/target/product/sooner'.
                                 If -p is not specified, the ANDROID_PRODUCT_OUT
                                 environment variable is used, which must
                                 be an absolute path.
 -H                            - Name of adb server host (default: localhost)
 -P                            - Port of adb server (default: 5037)
 devices [-l]                  - list all connected devices
                                 ('-l' will also list device qualifiers)
 connect <host>[:<port>]       - connect to a device via TCP/IP
                                 Port 5555 is used by default if no port number is specified.
 disconnect [<host>[:<port>]]  - disconnect from a TCP/IP device.
                                 Port 5555 is used by default if no port number is specified.
                                 Using this command with no additional arguments
                                 will disconnect from all connected TCP/IP devices.

device commands:
  adb push [-p] <local> <remote>
                               - copy file/dir to device
                                 ('-p' to display the transfer progress)
  adb pull [-p] [-a] <remote> [<local>]
                               - copy file/dir from device
                                 ('-p' to display the transfer progress)
                                 ('-a' means copy timestamp and mode)
  adb sync [ <directory> ]     - copy host->device only if changed
                                 (-l means list but don't copy)
  adb shell                    - run remote shell interactively
  adb shell <command>          - run remote shell command
  adb emu <command>            - run emulator console command
  adb logcat [ <filter-spec> ] - View device log
  adb forward --list           - list all forward socket connections.
                                 the format is a list of lines with the following format:
                                    <serial> " " <local> " " <remote> "\n"
  adb forward <local> <remote> - forward socket connections
                                 forward specs are one of:
                                   tcp:<port>
                                   localabstract:<unix domain socket name>
                                   localreserved:<unix domain socket name>
                                   localfilesystem:<unix domain socket name>
                                   dev:<character device name>
                                   jdwp:<process pid> (remote only)
  adb forward --no-rebind <local> <remote>
                               - same as 'adb forward <local> <remote>' but fails
                                 if <local> is already forwarded
  adb forward --remove <local> - remove a specific forward socket connection
  adb forward --remove-all     - remove all forward socket connections
  adb reverse --list           - list all reverse socket connections from device
  adb reverse <remote> <local> - reverse socket connections
                                 reverse specs are one of:
                                   tcp:<port>
                                   localabstract:<unix domain socket name>
                                   localreserved:<unix domain socket name>
                                   localfilesystem:<unix domain socket name>
  adb reverse --norebind <remote> <local>
                               - same as 'adb reverse <remote> <local>' but fails
                                 if <remote> is already reversed.
  adb reverse --remove <remote>
                               - remove a specific reversed socket connection
  adb reverse --remove-all     - remove all reversed socket connections from device
  adb jdwp                     - list PIDs of processes hosting a JDWP transport
  adb install [-lrtsdg] <file>
                               - push this package file to the device and install it
                                 (-l: forward lock application)
                                 (-r: replace existing application)
                                 (-t: allow test packages)
                                 (-s: install application on sdcard)
                                 (-d: allow version code downgrade)
                                 (-g: grant all runtime permissions)
  adb install-multiple [-lrtsdpg] <file...>
                               - push this package file to the device and install it
                                 (-l: forward lock application)
                                 (-r: replace existing application)
                                 (-t: allow test packages)
                                 (-s: install application on sdcard)
                                 (-d: allow version code downgrade)
                                 (-p: partial application install)
                                 (-g: grant all runtime permissions)
  adb uninstall [-k] <package> - remove this app package from the device
                                 ('-k' means keep the data and cache directories)
  adb bugreport                - return all information from the device
                                 that should be included in a bug report.

  adb backup [-f <file>] [-apk|-noapk] [-obb|-noobb] [-shared|-noshared] [-all] [-system|-nosystem] [<packages...>]
                               - write an archive of the device's data to <file>.
                                 If no -f option is supplied then the data is written
                                 to "backup.ab" in the current directory.
                                 (-apk|-noapk enable/disable backup of the .apks themselves
                                    in the archive; the default is noapk.)
                                 (-obb|-noobb enable/disable backup of any installed apk expansion
                                    (aka .obb) files associated with each application; the default
                                    is noobb.)
                                 (-shared|-noshared enable/disable backup of the device's
                                    shared storage / SD card contents; the default is noshared.)
                                 (-all means to back up all installed applications)
                                 (-system|-nosystem toggles whether -all automatically includes
                                    system applications; the default is to include system apps)
                                 (<packages...> is the list of applications to be backed up.  If
                                    the -all or -shared flags are passed, then the package
                                    list is optional.  Applications explicitly given on the
                                    command line will be included even if -nosystem would
                                    ordinarily cause them to be omitted.)

  adb restore <file>           - restore device contents from the <file> backup archive

  adb disable-verity           - disable dm-verity checking on USERDEBUG builds
  adb enable-verity            - re-enable dm-verity checking on USERDEBUG builds
  adb keygen <file>            - generate adb public/private key. The private key is stored in <file>,
                                 and the public key is stored in <file>.pub. Any existing files
                                 are overwritten.
  adb help                     - show this help message
  adb version                  - show version num

scripting:
  adb wait-for-device          - block until device is online
  adb start-server             - ensure that there is a server running
  adb kill-server              - kill the server if it is running
  adb get-state                - prints: offline | bootloader | device
  adb get-serialno             - prints: <serial-number>
  adb get-devpath              - prints: <device-path>
  adb remount                  - remounts the /system, /vendor (if present) and /oem (if present) partitions on the device read-write
  adb reboot [bootloader|recovery]
                               - reboots the device, optionally into the bootloader or recovery program.
  adb reboot sideload          - reboots the device into the sideload mode in recovery program (adb root required).
  adb reboot sideload-auto-reboot
                               - reboots into the sideload mode, then reboots automatically after the sideload regardless of the result.
  adb sideload <file>          - sideloads the given package
  adb root                     - restarts the adbd daemon with root permissions
  adb unroot                   - restarts the adbd daemon without root permissions
  adb usb                      - restarts the adbd daemon listening on USB
  adb tcpip <port>             - restarts the adbd daemon listening on TCP on the specified port

networking:
  adb ppp <tty> [parameters]   - Run PPP over USB.
 Note: you should not automatically start a PPP connection.
 <tty> refers to the tty for PPP stream. Eg. dev:/dev/omap_csmi_tty1
 [parameters] - Eg. defaultroute debug dump local notty usepeerdns

adb sync notes: adb sync [ <directory> ]
  <localdir> can be interpreted in several ways:

  - If <directory> is not specified, /system, /vendor (if present), /oem (if present) and /data partitions will be updated.

  - If it is "system", "vendor", "oem" or "data", only the corresponding partition
    is updated.

environment variables:
  ADB_TRACE                    - Print debug information. A comma separated list of the following values
                                 1 or all, adb, sockets, packets, rwx, usb, sync, sysdeps, transport, jdwp
  ANDROID_SERIAL               - The serial number to connect to. -s takes priority over this if given.
  ANDROID_LOG_TAGS             - When used with the logcat option, only these debug tags are printed.

Anda dapat menggunakan metode tidak berdokumenandroid.app.ActivityThread.currentPackageName() :

Class<?> clazz = Class.forName("android.app.ActivityThread");
Method method  = clazz.getDeclaredMethod("currentPackageName", null);
String appPackageName = (String) method.invoke(clazz, null);

Peringatan: Ini harus dilakukan pada utas utama aplikasi.

Berkat posting blog ini untuk idenya: http://blog.javia.org/static-the-android-application-package/ .

Bagi mereka yang menggunakan Gradle, seperti yang disebutkan @Billda, Anda bisa mendapatkan nama paket melalui:

BuildConfig.APPLICATION_ID

Ini memberi Anda nama paket yang dinyatakan dalam grad aplikasi Anda:

android {
    defaultConfig {
        applicationId "com.domain.www"
    }
}

Jika Anda tertarik untuk mendapatkan nama paket yang digunakan oleh kelas java Anda (yang terkadang berbeda dari applicationId), Anda dapat menggunakan

BuildConfig.class.getPackage().toString()

Jika Anda bingung mana yang harus digunakan, baca di sini :

Catatan: ID aplikasi yang digunakan untuk dikaitkan langsung dengan nama paket kode Anda; jadi beberapa Android API menggunakan istilah "nama paket" dalam nama metode dan nama parameter mereka, tetapi ini sebenarnya adalah ID aplikasi Anda. Misalnya, metode Context.getPackageName () mengembalikan ID aplikasi Anda. Tidak perlu lagi membagikan nama paket sejati kode Anda di luar kode aplikasi Anda.

PackageInfo pinfo = this.getPackageManager().getPackageInfo(getPackageName(), 0);
         String sVersionCode = pinfo.versionCode; // 1
         String sVersionName = pinfo.versionName; // 1.0
         String sPackName = getPackageName(); // cz.okhelp.my_app
         int nSdkVersion = Integer.parseInt(Build.VERSION.SDK); 
         int nSdkVers = Build.VERSION.SDK_INT; 

Semoga ini akan berhasil.

Buat modul java yang akan dijalankan saat memulai aplikasi Anda. Modul ini akan memperluas kelas Aplikasi android dan akan menginisialisasi variabel aplikasi global dan juga berisi rutinitas utilitas di seluruh aplikasi -

public class MyApplicationName extends Application {

    private final String PACKAGE_NAME = "com.mysite.myAppPackageName";

    public String getPackageName() { return PACKAGE_NAME; }
}

Tentu saja, ini bisa termasuk logika untuk mendapatkan nama paket dari sistem android; namun, kode di atas lebih kecil, lebih cepat dan lebih bersih daripada mendapatkannya dari android.

Pastikan untuk menempatkan entri dalam file AndroidManifest.xml Anda untuk memberi tahu Android untuk menjalankan modul aplikasi Anda sebelum menjalankan aktivitas apa pun -

<application 
    android:name=".MyApplicationName" 
    ...
>

Kemudian, untuk mendapatkan nama paket dari modul lain, masukkan

MyApp myApp = (MyApp) getApplicationContext();
String myPackage = myApp.getPackageName();

Menggunakan modul aplikasi juga memberi Anda konteks untuk modul yang perlu tetapi tidak memiliki konteks.

Gunakan: BuildConfig.APPLICATION_ID untuk mendapatkan NAMA PAKET di mana saja (yaitu; layanan, penerima, aktivitas, fragmen, dll)

Contoh: String PackageName = BuildConfig.APPLICATION_ID;

Cukup impor Android.app, maka Anda dapat menggunakan: <br/>Application.getProcessName()<br/>

Dapatkan Nama Proses Aplikasi saat ini tanpa konteks, tampilan, atau aktivitas.