如何从任何地方获取包名？
我知道Context.getApplicationContext（）和View.getContext（）的可用性，通过它我们实际上可以调用Context.getPackageName（）来检索应用程序的包名称。
他们的工作，如果我从一个View或Activity对象可用的方法调用，但如果我想从一个完全独立的类没有View或Activityfind包名，有没有办法做到这一点（直接或间接）？
一个想法是在你的主要活动中有一个静态variables，实例化为包名称。 然后只需引用该variables。
您将不得不在主Activity的onCreate()方法中初始化它：
全球对class级：
public static String PACKAGE_NAME;
然后..
@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); PACKAGE_NAME = getApplicationContext().getPackageName(); }
然后您可以通过Main.PACKAGE_NAME访问它。
如果您使用gradle-android-plugin来构build您的应用程序，那么您可以使用
BuildConfig.APPLICATION_ID
从任何范围检索包名称，包括。 一个静态的。
如果用“任何地方”一词来表示没有明确的Context （例如来自后台线程），则应该在项目中定义一个类，如下所示：
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(); } }
然后在您的manifest您需要将此类添加到“ Application选项卡上的“ Name字段。 或者编辑XML并放
<application android:name="com.example.app.MyApp" android:icon="@drawable/icon" android:label="@string/app_name" ....... <activity ......
然后从任何地方打电话
String packagename= MyApp.getContext().getPackageName();
希望它有帮助。
如果您使用gradle build，请使用以下代码： BuildConfig.APPLICATION_ID获取应用程序的软件包名称。
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build一个Java模块，以便在启动应用程序时运行。 这个模块将扩展android应用程序类，并将初始化任何全局应用程序variables，也包含应用程序范围的实用程序 –
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获得更小，更快，更干净的代码。
请确保在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软件包名称，请input
MyApp myApp = (MyApp) getApplicationContext(); String myPackage = myApp.getPackageName();
使用应用程序模块还为您提供了需要但没有上下文的模块的上下文。
你可以像这样获取你的包名：
$ /path/to/adb shell 'pm list packages -f myapp' package:/data/app/mycompany.myapp-2.apk=mycompany.myapp
这里是选项：
$ 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.
