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  • android --静默安装

    【此篇文章为转载文章】

    最近需要实现Android应用的静默安装，在网上看了不少帖子，最后在root权限下实现对应用的静默安装和卸载，现在就整个实现的过程做一个总结。

    一.第一种方案
    第一种方案参考了源码中/packages/apps/PackageInstaller的实现方式，实现的主要代码如下：
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    import java.io.File;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import android.content.Context;
    import android.content.Intent;
    import android.content.pm.PackageInfo;
    import android.content.pm.PackageManager;
    import android.content.pm.IPackageInstallObserver;
    import android.content.pm.PackageManager.NameNotFoundException;
    import android.content.pm.PackageParser;
    import android.net.Uri;
    import android.os.Handler;
    import android.os.Message;
    import android.util.DisplayMetrics;
    import android.util.Log;
    import android.os.FileUtils;
     
    public class MyPackageInstaller {
    private static final String PACKAGE_NAME = "test.installservice";
    private final int INSTALL_COMPLETE = 1;
    private Context context;
    Uri mPackageURI;
    private PackageParser.Package mPkgInfo;
     
    private Handler mHandler = new Handler() {
    public void handleMessage(Message msg) {
    switch (msg.what) {
    case INSTALL_COMPLETE:
    // finish the activity posting result
    //setResultAndFinish(msg.arg1);
    break;
    default:
    break;
    }
    }
    };
     
    void setResultAndFinish(int retCode) {
    // Intent data = new Intent();
    // setResult(retCode);
    // finish();
    }
     
    public MyPackageInstaller(Context c) {
    this.context = c;
    }
     
    public void installPackage() {
    int installFlags = 0;
    PackageManager pm = context.getPackageManager();
    try {
    PackageInfo pi = pm.getPackageInfo(
    mPkgInfo.applicationInfo.packageName,
    PackageManager.GET_UNINSTALLED_PACKAGES);
    if (pi != null) {
    // installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
    installFlags |= 2;
    }
    } catch (NameNotFoundException e) {
    }
     
    String array[] = null;
    try {
    Runtime.getRuntime().exec("chmod 777 /data/data/" + PACKAGE_NAME);
    Runtime.getRuntime().exec(
    "chmod 777 /data/data/" + PACKAGE_NAME + "/files");
    array = this.mPackageURI.toString().split("/");
    System.out.println("array[last]->" + array[array.length - 1]);
    Runtime.getRuntime().exec(
    "chmod 777 /data/data/" + PACKAGE_NAME + "/files/"
    + array[array.length - 1]);
    } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
     
    PackageInstallObserver observer = new PackageInstallObserver();
    pm.installPackage(mPackageURI, observer, installFlags, null);
    // context.deleteFile(array[array.length-1]);
    }
     
    class PackageInstallObserver extends IPackageInstallObserver.Stub {
    public void packageInstalled(String packageName, int returnCode) {
    Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
    msg.arg1 = returnCode;
    mHandler.sendMessage(msg);
    }
    }
     
    private File createTempPackageFile(String filePath) {
    File tmpPackageFile;
    int i = filePath.lastIndexOf("/");
    String tmpFileName;
    if (i != -1) {
    tmpFileName = filePath.substring(i + 1);
    } else {
    tmpFileName = filePath;
    }
    FileOutputStream fos;
    try {
    // MODE_WORLD_READABLE=1
    fos = context.openFileOutput(tmpFileName, 1);
    } catch (FileNotFoundException e1) {
    Log.e("Installer", "Error opening file " + tmpFileName);
    return null;
    }
    try {
    fos.close();
    } catch (IOException e) {
    Log.e("Installer", "Error opening file " + tmpFileName);
    return null;
    }
    tmpPackageFile = context.getFileStreamPath(tmpFileName);
    File srcPackageFile = new File(filePath);
    if (!FileUtils.copyFile(srcPackageFile, tmpPackageFile)) {
    return null;
    }
    return tmpPackageFile;
    }
     
    public void makeTempCopyAndInstall(Uri mPackageURI) {
    mPkgInfo = getPackageInfo(mPackageURI);
    System.out.println("package=" + mPkgInfo.applicationInfo.packageName);
    System.out.println("copy file=" + mPackageURI.getPath());
    File mTmpFile = createTempPackageFile(mPackageURI.getPath());
    if (mTmpFile == null) {
    // display a dialog
    Log.e("Installer",
    "Error copying file locally. Failed Installation");
    // showDialogInner(DLG_OUT_OF_SPACE);
    return;
    }
    this.mPackageURI = Uri.parse("file://" + mTmpFile.getPath());
    }
     
    public PackageParser.Package getPackageInfo(Uri packageURI) {
    final String archiveFilePath = packageURI.getPath();
    PackageParser packageParser = new PackageParser(archiveFilePath);
    File sourceFile = new File(archiveFilePath);
    DisplayMetrics metrics = new DisplayMetrics();
    metrics.setToDefaults();
    return packageParser.parsePackage(sourceFile, archiveFilePath, metrics,
    0);
    }
    }


    在程序中的调用方式：this为Context，path为安装包的绝对路径
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    MyPackageInstaller mpi = new MyPackageInstaller(this);
    mpi.makeTempCopyAndInstall(Uri.parse(path));
    mpi.installPackage();


    这种方式需要在源码下面编译apk，并将apk放入/system/app目录下面。

    二.通过shell命令实现
    首先，在java中实现安装和卸载apk的命令
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    public class PackageInstaller {
     
    public void unInstallApp(String packageName){
    try {
    Runtime.getRuntime().exec("pm uninstall "+packageName);
    } catch (IOException e) {
    e.printStackTrace();
    }
    }
     
    public void installApp(String appPath){
    try {
    Runtime.getRuntime().exec("pm install "+appPath);
    } catch (IOException e) {
    e.printStackTrace();
    }
    }
     
    public void reInstallApp(String appPath){
    try {
    Runtime.getRuntime().exec("pm install -r "+appPath);
    } catch (IOException e) {
    e.printStackTrace();
    }
    }
     
    }

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    public class StartMain {
     
    private static final String INSTALL_ACTION_LABEL = "install";
    private static final String REINSTALL_ACTION_LABEL = "reinstall";
    private static final String UNINSTALL_ACTION_LABEL = "uninstall";
     
    public static void main(String args[]){
    if(args==null||args.length<2) return;
    PackageInstaller pi=new PackageInstaller();
    if(args[0].equals(INSTALL_ACTION_LABEL)){
    pi.installApp(args[1]);
    }
    if(args[0].equals(REINSTALL_ACTION_LABEL)){
    pi.reInstallApp(args[1]);
    }
    else if(args[0].equals(UNINSTALL_ACTION_LABEL)){
    pi.unInstallApp(args[1]);
    }
    }
     
    }

    然后再源码环境下将该java程序编译为jar包
    2.将编译好的jar包放入程序的assets目录下面，通过以下代码在程序中将该jar文件拷贝到/data/data/package/files/目录下面
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    try {
    AssetManager assetManager = context.getResources().getAssets();
    InputStream in = assetManager.open(JAR_NAME);
    if (in == null) {
    return;
    }
    int length = in.available();
    byte fileByte[] = new byte[length];
    in.read(fileByte, 0, fileByte.length);
    in.close();
    OutputStream out = context.openFileOutput(JAR_NAME,
    Context.MODE_WORLD_READABLE | Context.MODE_WORLD_WRITEABLE);
    out.write(fileByte);
    out.close();
    } catch (Exception e) {
    e.printStackTrace();
    }

    在有root权限的情况下，可以在shell中执行该jar包来进行安装和卸载：
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    String exportClassPath = "export CLASSPATH=/data/data/"
    + context.getPackageName() + "/files/installpackagejar.jar";

    代码片段，双击复制
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    String INSTALL_ACTION_CMD = " exec app_process /system/bin packageName.StartMain install ";

    代码片段，双击复制
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    public boolean installApp(String path) {
    File temp = new File(path);
    if (!temp.exists())
    return false;
    String cmd[] = { exportClassPath, INSTALL_ACTION_CMD + path };
    try {
    consoleExec(cmd);
    } catch (IOException e) {
    e.printStackTrace();
    return false;
    }
    return true;
    }

    代码片段，双击复制
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    private void consoleExec(String[] cmd) throws IOException {
    Process process = Runtime.getRuntime().exec("su");
    DataOutputStream os = new DataOutputStream(process.getOutputStream());
    for (int i = 0; i < cmd.length; i++) {
    os.writeBytes(cmd<i> + " ");
    }
    os.writeBytes("exit ");
    os.flush();
    os.close();
    }</i>
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  • 原文地址：https://www.cnblogs.com/new0801/p/6175821.html
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