blocks|key|1480339|text|如果您正在寻找gradle中由applicationId定义的值，您可以简单地使用|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1480340|BuildConfig.APPLICATION_ID+|code-block|syntax|javascript|1480341|entityMap^0|F|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

If your are looking for the value defined by <code>applicationId</code> in gradle, you can simply use

<pre><code>BuildConfig.APPLICATION_ID 
</code></pre>

blocks|key|1480187|text|我不确定您所指的“应用程序id”是什么，但是对于您的应用程序的唯一标识符，您可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1480188|当前活动中的getApplication().getPackageName()方法|1480189|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

i'm not sure what "application id" you are referring to, but for a unique identifier of your application you can use:

getApplication().getPackageName() method from your current activity

blocks|key|1480575|text|要获取AppId+(或包名，有些人会这么说)，只需调用以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1480576|但请确保使用您的应用程序id包路径导入BuildConfig|offset|length|style|CODE|1480577|BuildConfig.APPLICATION_ID+|code-block|syntax|javascript|1480578|entityMap^0|0|J|B|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

For getting AppId (or package name, how some says), just call this:
But be sure that you importing <code>BuildConfig</code> with your app id packages path
<pre><code>BuildConfig.APPLICATION_ID 
</code></pre>

blocks|key|1480522|text|包名是你的安卓应用id。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1480523|String+appId+=+BuildConfig.APPLICATION_ID|1480524|或|1480525|https://play.google.com/store/apps/details?id=com.whatsapp|offset|length|1480526|应用Id+=+com.whatsapp|1480527|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|1M|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|U|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|V|8|@]|9|@$H|W|I|X|1|Y]]|A|$]]|$1|J|3|K|5|6|7|Z|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|G]]]]

Package name is your android app id .

String appId = BuildConfig.APPLICATION_ID 

Or

<a href="https://play.google.com/store/apps/details?id=com.whatsapp" rel="nofollow noreferrer">https://play.google.com/store/apps/details?id=com.whatsapp</a>

App Id = com.whatsapp

blocks|key|1480287|text|否则，您可以获取运行应用程序的进程的id：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1480288|最终的静态int+android.os.Process.myPid()|1480289|返回此进程的标识符，可与killProcess(int)和sendSignal(int，int)一起使用。|1480290|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Else you can get id of process your application runs in: 

final static int android.os.Process.myPid() 
Returns the identifier of this process, which can be used with killProcess(int) and sendSignal(int, int).

blocks|key|1265626|text|如果整个目的是与其他应用程序进行数据通信，请使用Intent的sendBroadcast方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1265627|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If the whole purpose is to communicate data with some other application, use Intent's sendBroadcast methods.

blocks|key|1480375|text|Android应用程序ES文件资源管理器在用户应用程序部分显示Android包名称，这对Bitwarden很有用。Bitwarden将其称为"android应用程序包ID+(或包名称)“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1480376|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Android App ES File Explorer shows the Android package name in the User Apps section which is useful for Bitwarden. Bitwarden refers to this as "android application package ID (or package name)".

blocks|key|1480455|text|例如，要跟踪安装，您可以使用UUID作为标识符，并在安装后第一次运行应用程序时简单地创建一个新的UUID。下面是一个名为“Installation”的类的草图，其中包含一个静态方法Installation.id(上下文上下文)。您可以想象在安装文件中写入更多特定于安装的数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1480456|public+class+Installation+{
private+static+String+sID+=+null;
private+static+final+String+INSTALLATION+=+"INSTALLATION";
public+synchronized+static+String+id(Context+context)+{

++++if+(sID+==+null)+{++
+++++++File+installation+=+new+File(context.getFilesDir(),+INSTALLATION);
+++++++try+{
+++++++++++if+(!installation.exists())
+++++++++++++++writeInstallationFile(installation);
+++++++++++sID+=+readInstallationFile(installation);
+++++++}+catch+(Exception+e)+{
+++++++++++throw+new+RuntimeException(e);
+++++++}
++++}
+++return+sID;
}

private+static+String+readInstallationFile(File+installation)+throws+IOException+{
+++RandomAccessFile+f+=+new+RandomAccessFile(installation,+"r");
+++byte[]+bytes+=+new+byte[(int)+f.length()];
+++f.readFully(bytes);
+++f.close();
+++return+new+String(bytes);
}

private+static+void+writeInstallationFile(File+installation)+throws+IOException+{
+++FileOutputStream+out+=+new+FileOutputStream(installation);
+++String+id+=+UUID.randomUUID().toString();
+++out.write(id.getBytes());
+++out.close();
}|code-block|syntax|javascript|1480457|}|1480458|你可以在https://github.com/MShoaibAkram/Android-Unique-Application-ID上看到更多信息|offset|length|1480459|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/MShoaibAkram/Android-Unique-Application-ID^0|0|0|0|4|1P|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

To track installations, you could for example use a UUID as an identifier, and simply create a new one the first time an app runs after installation. Here is a sketch of a class named “Installation” with one static method Installation.id(Context context). You could imagine writing more installation-specific data into the INSTALLATION file.

<pre><code>public class Installation {
private static String sID = null;
private static final String INSTALLATION = "INSTALLATION";
public synchronized static String id(Context context) {

 if (sID == null) { 
 File installation = new File(context.getFilesDir(), INSTALLATION);
 try {
 if (!installation.exists())
 writeInstallationFile(installation);
 sID = readInstallationFile(installation);
 } catch (Exception e) {
 throw new RuntimeException(e);
 }
 }
 return sID;
}

private static String readInstallationFile(File installation) throws IOException {
 RandomAccessFile f = new RandomAccessFile(installation, "r");
 byte[] bytes = new byte[(int) f.length()];
 f.readFully(bytes);
 f.close();
 return new String(bytes);
}

private static void writeInstallationFile(File installation) throws IOException {
 FileOutputStream out = new FileOutputStream(installation);
 String id = UUID.randomUUID().toString();
 out.write(id.getBytes());
 out.close();
}
</code></pre>

}

Yon can see more at <a href="https://github.com/MShoaibAkram/Android-Unique-Application-ID" rel="nofollow noreferrer">https://github.com/MShoaibAkram/Android-Unique-Application-ID</a>

In Android, how do I get the application's id programatically (or by some other method), and how can I communicate with other applications using that id?

How to get Android application id?

在Android中，如何以编程方式(或通过其他方法)获取应用程序的id，以及如何使用该id与其他应用程序通信？

问如何获取Android应用id？
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