如何从任何地方获得包名?

一个想法是在你的主活动中有一个静态变量，实例化为包名。然后引用那个变量。

你必须在主活动的onCreate()方法中初始化它:

类的全局:

public static String PACKAGE_NAME;

然后. .

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


PACKAGE_NAME = getApplicationContext().getPackageName();
}

然后你可以通过Main.PACKAGE_NAME访问它。

如果“anywhere”指的是没有显式Context(例如来自后台线程)，则应该在项目中定义如下类:

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();
}
}

然后在你的manifest中，你需要将这个类添加到Application选项卡的Name字段中。或者编辑xml并放置

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

然后你可以在任何地方打电话

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

希望能有所帮助。

如果你使用gradle-android-plugin来构建你的应用程序，那么你可以使用

BuildConfig.APPLICATION_ID

从任何作用域(包括静态作用域)检索包名。

如果你使用gradle构建，使用这个:BuildConfig.APPLICATION_ID来获取应用程序的包名。

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;


}

创建一个java模块，最初运行时启动你的应用程序。这个模块将扩展android应用程序类，并初始化任何全局应用程序变量，还包含应用程序范围的实用程序例程-

public class MyApplicationName extends Application {


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


public String getPackageName() { return PACKAGE_NAME; }
}

当然，这可能包括从android系统获取包名的逻辑;然而，上面的代码比从android获取的代码更小，更快，更干净。

请务必在AndroidManifest.xml文件中放置一个条目，告诉android在运行任何活动之前运行您的应用程序模块

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

然后，要从任何其他模块获取包名，请输入

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

使用应用程序模块还为需要但没有上下文的模块提供了上下文。

你可以像这样得到你的包名:

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

以下是一些选项:

$ 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.

你可以使用无证方法android.app.ActivityThread.currentPackageName():

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

这必须在应用程序的主线程中完成。

感谢这篇博客文章的想法:http://blog.javia.org/static-the-android-application-package/。

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;

希望它能起作用。

对于那些正在使用Gradle的人，就像@Billda提到的，你可以通过以下途径获取包名:

BuildConfig.APPLICATION_ID

这给了你在你的应用程序gradle中声明的包名:

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

如果你有兴趣获得你的java类使用的包名(有时与applicationId不同)，你可以使用

BuildConfig.class.getPackage().toString()

如果你不知道使用哪一个，在这里阅读:

注意:应用程序ID过去是直接绑定到你的代码的 包名称;所以一些Android api使用术语“包名” 方法名和参数名，但这实际上是你的 应用程序ID。例如，Context.getPackageName()方法 返回你的应用ID。没有必要分享你的代码

导入Android。App，然后你可以使用: <br/>Application.getProcessName()<br/> < / p >

获取不包含上下文、视图或活动的当前应用程序进程名。

defaultConfig {
applicationId "com.example.app.name"
minSdkVersion 24
targetSdkVersion 29
versionCode 1
versionName '0.1.0'
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
buildConfigField("String", "PACKAGE", "\"com.example.app\"")
}

这适用于我在kotlin

       override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
       

var packageName=applicationContext.packageName // need to put this line
Log.d("YourTag",packageName)
}

只需使用这段代码

val packageName = context.packageName