我如何从AndroidManifest.xml文件下载后,不安装它,以编程方式获得我的apk的版本代码或版本名。

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="xxx.xx.xxx"
    android:versionCode="1"
    android:versionName="1.1" >

例如,我想检查我的IIS服务上是否上传了新版本,在设备上安装后,如果不是新版本,我就不想安装它。


当前回答

使用apkanalyzer现在是cmdline-tools的一部分:

$ apkanalyzer manifest version-code my_app.apk
1
$ apkanalyzer manifest version-name my_app.apk
1.2.3.4

其他回答

    EditText ET1 = (EditText) findViewById(R.id.editText1);

    PackageInfo pinfo;
    try {
        pinfo = getPackageManager().getPackageInfo(getPackageName(), 0);
        String versionName = pinfo.versionName;
        ET1.setText(versionName);
        //ET2.setText(versionNumber);
    } catch (NameNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

现在我可以成功地从二进制XML数据中检索APK文件的版本。

这个主题是我得到答案的关键(我还添加了我的Ribo代码版本): 如何解析。apk包内的AndroidManifest.xml文件

此外,下面是我编写的XML解析代码,专门用于获取版本:

XML解析

/**
 * Verifies at Conductor APK path if package version if newer 
 * 
 * @return True if package found is newer, false otherwise
 */
public static boolean checkIsNewVersion(String conductorApkPath) {

    boolean newVersionExists = false;

    // Decompress found APK's Manifest XML
    // Source: https://stackoverflow.com/questions/2097813/how-to-parse-the-androidmanifest-xml-file-inside-an-apk-package/4761689#4761689
    try {

        if ((new File(conductorApkPath).exists())) {

            JarFile jf = new JarFile(conductorApkPath);
            InputStream is = jf.getInputStream(jf.getEntry("AndroidManifest.xml"));
            byte[] xml = new byte[is.available()];
            int br = is.read(xml);

            //Tree tr = TrunkFactory.newTree();
            String xmlResult = SystemPackageTools.decompressXML(xml);
            //prt("XML\n"+tr.list());

            if (!xmlResult.isEmpty()) {

                InputStream in = new ByteArrayInputStream(xmlResult.getBytes());

                // Source: http://developer.android.com/training/basics/network-ops/xml.html
                XmlPullParser parser = Xml.newPullParser();
                parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);

                parser.setInput(in, null);
                parser.nextTag();

                String name = parser.getName();
                if (name.equalsIgnoreCase("Manifest")) {

                    String pakVersion = parser.getAttributeValue(null, "versionName");
                            //NOTE: This is specific to my project. Replace with whatever is relevant on your side to fetch your project's version
                    String curVersion = SharedData.getPlayerVersion();

                    int isNewer = SystemPackageTools.compareVersions(pakVersion, curVersion); 

                    newVersionExists = (isNewer == 1); 
                }

            }
        }

    } catch (Exception ex) {
        android.util.Log.e(TAG, "getIntents, ex: "+ex);
        ex.printStackTrace();
    }

    return newVersionExists;
}

版本比较(见上一代码段中的SystemPackageTools.compareVersions) 注意:这段代码的灵感来自以下主题:在Java中比较版本字符串的有效方法

/**
 * Compare 2 version strings and tell if the first is higher, equal or lower
 * Source: https://stackoverflow.com/questions/6701948/efficient-way-to-compare-version-strings-in-java
 * 
 * @param ver1 Reference version
 * @param ver2 Comparison version
 * 
 * @return 1 if ver1 is higher, 0 if equal, -1 if ver1 is lower
 */
public static final int compareVersions(String ver1, String ver2) {

    String[] vals1 = ver1.split("\\.");
    String[] vals2 = ver2.split("\\.");
    int i=0;
    while(i<vals1.length&&i<vals2.length&&vals1[i].equals(vals2[i])) {
      i++;
    }

    if (i<vals1.length&&i<vals2.length) {
        int diff = Integer.valueOf(vals1[i]).compareTo(Integer.valueOf(vals2[i]));
        return diff<0?-1:diff==0?0:1;
    }

    return vals1.length<vals2.length?-1:vals1.length==vals2.length?0:1;
}

我希望这能有所帮助。

科特林:

var ver: String = packageManager.getPackageInfo(packageName, 0).versionName

目前,可以按以下方法进行此操作

$ANDROID_HOME/build-tools/28.0.3/aapt dump badging /<path to>/<app name>.apk

一般来说,它将是:

$ANDROID_HOME/build-tools/<version_of_build_tools>/aapt dump badging /<path to>/<app name>.apk

有更简单的方法来识别版本代码和版本名。 请将最新的apk拖拽到Android studio进行apk分析器,在这里您可以交叉验证版本代码和版本名称,如下所示: