Android：以编程方式安装.apk
首先，我在Android下载二进制文件问题的帮助下以及在Android上以编程方式安装应用程序 。 多谢你们！
我想立刻进行自动更新和自动安装。 这是本地的，所以它是非市场应用。
这是我的代码：
public void Update(String apkurl){ try { URL url = new URL(apkurl); HttpURLConnection c = (HttpURLConnection) url.openConnection(); c.setRequestMethod("GET"); c.setDoOutput(true); c.connect(); String PATH = Environment.getExternalStorageDirectory() + "/download/"; File file = new File(PATH); file.mkdirs(); File outputFile = new File(file, "app.apk"); FileOutputStream fos = new FileOutputStream(outputFile); InputStream is = c.getInputStream(); byte[] buffer = new byte[1024]; int len1 = 0; while ((len1 = is.read(buffer)) != -1) { fos.write(buffer, 0, len1); } fos.close(); is.close();//till here, it works fine - .apk is download to my sdcard in download file Intent promptInstall = new Intent(Intent.ACTION_VIEW) .setData(Uri.parse(PATH+"app.apk")) .setType("application/android.com.app"); startActivity(promptInstall);//installation is not working } catch (IOException e) { Toast.makeText(getApplicationContext(), "Update error!", Toast.LENGTH_LONG).show(); } } 我的权限是INTERNET ， WRITE_EXTERNAL_STORAGE ， INSTALL_PACKAGES和DELETE_PACKAGES 。
当意图promptInstall加载时，应用程序崩溃= /
所以，我是否缺less权限，或者是我的代码不正确，还是有更好的方法来做到这一点？
我解决了这个问题。 我在setData(Uri)和setType(String) 。
Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/download/" + "app.apk")), "application/vnd.android.package-archive"); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent);
这是正确的，我的自动更新正在工作。 感谢帮助。 =）
编辑20.7.2016：
很长一段时间后，我不得不在另一个项目中再次使用这种更新方式。 我用旧的解决scheme遇到了一些问题。 那个时候很多事情都改变了，所以我必须用不同的方法来做这件事。 这里是代码：
//get destination to update file and set Uri //TODO: First I wanted to store my update .apk file on internal storage for my app but apparently android does not allow you to open and install //aplication with existing package from there. So for me, alternative solution is Download directory in external storage. If there is better //solution, please inform us in comment String destination = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/"; String fileName = "AppName.apk"; destination += fileName; final Uri uri = Uri.parse("file://" + destination); //Delete update file if exists File file = new File(destination); if (file.exists()) //file.delete() - test this, I think sometimes it doesnt work file.delete(); //get url of app on server String url = Main.this.getString(R.string.update_app_url); //set downloadmanager DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url)); request.setDescription(Main.this.getString(R.string.notification_description)); request.setTitle(Main.this.getString(R.string.app_name)); //set destination request.setDestinationUri(uri); // get download service and enqueue file final DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE); final long downloadId = manager.enqueue(request); //set BroadcastReceiver to install app when .apk is downloaded BroadcastReceiver onComplete = new BroadcastReceiver() { public void onReceive(Context ctxt, Intent intent) { Intent install = new Intent(Intent.ACTION_VIEW); install.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); install.setDataAndType(uri, manager.getMimeTypeForDownloadedFile(downloadId)); startActivity(install); unregisterReceiver(this); finish(); } }; //register receiver for when .apk download is compete registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
对于ICS我已经实现了你的代码，并且创build了一个扩展AsyncTask的类。 我希望你感激它！ 感谢您的代码和解决scheme。
public class UpdateApp extends AsyncTask<String,Void,Void>{ private Context context; public void setContext(Context contextf){ context = contextf; } @Override protected Void doInBackground(String... arg0) { try { URL url = new URL(arg0[0]); HttpURLConnection c = (HttpURLConnection) url.openConnection(); c.setRequestMethod("GET"); c.setDoOutput(true); c.connect(); String PATH = "/mnt/sdcard/Download/"; File file = new File(PATH); file.mkdirs(); File outputFile = new File(file, "update.apk"); if(outputFile.exists()){ outputFile.delete(); } FileOutputStream fos = new FileOutputStream(outputFile); InputStream is = c.getInputStream(); byte[] buffer = new byte[1024]; int len1 = 0; while ((len1 = is.read(buffer)) != -1) { fos.write(buffer, 0, len1); } fos.close(); is.close(); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File("/mnt/sdcard/Download/update.apk")), "application/vnd.android.package-archive"); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // without this flag android returned a intent error! context.startActivity(intent); } catch (Exception e) { Log.e("UpdateAPP", "Update error! " + e.getMessage()); } return null; } }
要使用它，在你的主要活动中这样调用：
atualizaApp = new UpdateApp(); atualizaApp.setContext(getApplicationContext()); atualizaApp.execute("http://serverurl/appfile.apk");
这个问题是非常有用的，但是不要忘了在你的模拟器中安装SD卡，如果你不这样做，它不起作用。
在发现这件事之前，我失去了时间。
/* * Code Prepared by **Muhammad Mubashir**. * Analyst Software Enggineer. Emial Id : muhammad.mubashir.bscs@gmail.com Skype Id : muhammad.mubashir.ansari Code: **August, 2011.** Description: **Get Updates(means New .Apk File) from IIS Server and Download it on Device SD Card, and Uninstall Previous (means OLD .apk) and Install New One. and also get Installed App Version Code & Version Name.** All Rights Reserved. */ package com.SelfInstall01; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.List; import com.SelfInstall01.SelfInstall01Activity; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageInfo; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; public class SelfInstall01Activity extends Activity { class PInfo { private String appname = ""; private String pname = ""; private String versionName = ""; private int versionCode = 0; //private Drawable icon; /*private void prettyPrint() { //Log.v(appname + "\t" + pname + "\t" + versionName + "\t" + versionCode); }*/ } public int VersionCode; public String VersionName=""; public String ApkName ; public String AppName ; public String BuildVersionPath=""; public String urlpath ; public String PackageName; public String InstallAppPackageName; public String Text=""; TextView tvApkStatus; Button btnCheckUpdates; TextView tvInstallVersion; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //Text= "Old".toString(); Text= "New".toString(); ApkName = "SelfInstall01.apk";//"Test1.apk";// //"DownLoadOnSDcard_01.apk"; // AppName = "SelfInstall01";//"Test1"; // BuildVersionPath = "http://10.0.2.2:82/Version.txt".toString(); PackageName = "package:com.SelfInstall01".toString(); //"package:com.Test1".toString(); urlpath = "http://10.0.2.2:82/"+ Text.toString()+"_Apk/" + ApkName.toString(); tvApkStatus =(TextView)findViewById(R.id.tvApkStatus); tvApkStatus.setText(Text+" Apk Download.".toString()); tvInstallVersion = (TextView)findViewById(R.id.tvInstallVersion); String temp = getInstallPackageVersionInfo(AppName.toString()); tvInstallVersion.setText("" +temp.toString()); btnCheckUpdates =(Button)findViewById(R.id.btnCheckUpdates); btnCheckUpdates.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { GetVersionFromServer(BuildVersionPath); if(checkInstalledApp(AppName.toString()) == true) { Toast.makeText(getApplicationContext(), "Application Found " + AppName.toString(), Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(getApplicationContext(), "Application Not Found. "+ AppName.toString(), Toast.LENGTH_SHORT).show(); } } }); }// On Create END. private Boolean checkInstalledApp(String appName){ return getPackages(appName); } // Get Information about Only Specific application which is Install on Device. public String getInstallPackageVersionInfo(String appName) { String InstallVersion = ""; ArrayList<PInfo> apps = getInstalledApps(false); /* false = no system packages */ final int max = apps.size(); for (int i=0; i<max; i++) { //apps.get(i).prettyPrint(); if(apps.get(i).appname.toString().equals(appName.toString())) { InstallVersion = "Install Version Code: "+ apps.get(i).versionCode+ " Version Name: "+ apps.get(i).versionName.toString(); break; } } return InstallVersion.toString(); } private Boolean getPackages(String appName) { Boolean isInstalled = false; ArrayList<PInfo> apps = getInstalledApps(false); /* false = no system packages */ final int max = apps.size(); for (int i=0; i<max; i++) { //apps.get(i).prettyPrint(); if(apps.get(i).appname.toString().equals(appName.toString())) { /*if(apps.get(i).versionName.toString().contains(VersionName.toString()) == true && VersionCode == apps.get(i).versionCode) { isInstalled = true; Toast.makeText(getApplicationContext(), "Code Match", Toast.LENGTH_SHORT).show(); openMyDialog(); }*/ if(VersionCode <= apps.get(i).versionCode) { isInstalled = true; /*Toast.makeText(getApplicationContext(), "Install Code is Less.!", Toast.LENGTH_SHORT).show();*/ DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { switch (which) { case DialogInterface.BUTTON_POSITIVE: //Yes button clicked //SelfInstall01Activity.this.finish(); Close The App. DownloadOnSDcard(); InstallApplication(); UnInstallApplication(PackageName.toString()); break; case DialogInterface.BUTTON_NEGATIVE: //No button clicked break; } } }; AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("New Apk Available..").setPositiveButton("Yes Proceed", dialogClickListener) .setNegativeButton("No.", dialogClickListener).show(); } if(VersionCode > apps.get(i).versionCode) { isInstalled = true; /*Toast.makeText(getApplicationContext(), "Install Code is better.!", Toast.LENGTH_SHORT).show();*/ DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { switch (which) { case DialogInterface.BUTTON_POSITIVE: //Yes button clicked //SelfInstall01Activity.this.finish(); Close The App. DownloadOnSDcard(); InstallApplication(); UnInstallApplication(PackageName.toString()); break; case DialogInterface.BUTTON_NEGATIVE: //No button clicked break; } } }; AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("NO need to Install.").setPositiveButton("Install Forcely", dialogClickListener) .setNegativeButton("Cancel.", dialogClickListener).show(); } } } return isInstalled; } private ArrayList<PInfo> getInstalledApps(boolean getSysPackages) { ArrayList<PInfo> res = new ArrayList<PInfo>(); List<PackageInfo> packs = getPackageManager().getInstalledPackages(0); for(int i=0;i<packs.size();i++) { PackageInfo p = packs.get(i); if ((!getSysPackages) && (p.versionName == null)) { continue ; } PInfo newInfo = new PInfo(); newInfo.appname = p.applicationInfo.loadLabel(getPackageManager()).toString(); newInfo.pname = p.packageName; newInfo.versionName = p.versionName; newInfo.versionCode = p.versionCode; //newInfo.icon = p.applicationInfo.loadIcon(getPackageManager()); res.add(newInfo); } return res; } public void UnInstallApplication(String packageName)// Specific package Name Uninstall. { //Uri packageURI = Uri.parse("package:com.CheckInstallApp"); Uri packageURI = Uri.parse(packageName.toString()); Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI); startActivity(uninstallIntent); } public void InstallApplication() { Uri packageURI = Uri.parse(PackageName.toString()); Intent intent = new Intent(android.content.Intent.ACTION_VIEW, packageURI); // Intent intent = new Intent(android.content.Intent.ACTION_VIEW); //intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //intent.setFlags(Intent.ACTION_PACKAGE_REPLACED); //intent.setAction(Settings. ACTION_APPLICATION_SETTINGS); intent.setDataAndType (Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/download/" + ApkName.toString())), "application/vnd.android.package-archive"); // Not open this Below Line Bcuz... ////intent.setClass(this, Project02Activity.class); // This Line Call Activity Recursively its dangerous. startActivity(intent); } public void GetVersionFromServer(String BuildVersionPath) { //this is the file you want to download from the remote server //path ="http://10.0.2.2:82/Version.txt"; //this is the name of the local file you will create // version.txt contain Version Code = 2; \n Version name = 2.1; URL u; try { u = new URL(BuildVersionPath.toString()); HttpURLConnection c = (HttpURLConnection) u.openConnection(); c.setRequestMethod("GET"); c.setDoOutput(true); c.connect(); //Toast.makeText(getApplicationContext(), "HttpURLConnection Complete.!", Toast.LENGTH_SHORT).show(); InputStream in = c.getInputStream(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; //that stops the reading after 1024 chars.. //in.read(buffer); // Read from Buffer. //baos.write(buffer); // Write Into Buffer. int len1 = 0; while ( (len1 = in.read(buffer)) != -1 ) { baos.write(buffer,0, len1); // Write Into ByteArrayOutputStream Buffer. } String temp = ""; String s = baos.toString();// baos.toString(); contain Version Code = 2; \n Version name = 2.1; for (int i = 0; i < s.length(); i++) { i = s.indexOf("=") + 1; while (s.charAt(i) == ' ') // Skip Spaces { i++; // Move to Next. } while (s.charAt(i) != ';'&& (s.charAt(i) >= '0' && s.charAt(i) <= '9' || s.charAt(i) == '.')) { temp = temp.toString().concat(Character.toString(s.charAt(i))) ; i++; } // s = s.substring(i); // Move to Next to Process.! temp = temp + " "; // Separate wrt Space Version Code and Version Name. } String[] fields = temp.split(" ");// Make Array for Version Code and Version Name. VersionCode = Integer.parseInt(fields[0].toString());// .ToString() Return String Value. VersionName = fields[1].toString(); baos.close(); } catch (MalformedURLException e) { Toast.makeText(getApplicationContext(), "Error." + e.getMessage(), Toast.LENGTH_SHORT).show(); e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); Toast.makeText(getApplicationContext(), "Error." + e.getMessage(), Toast.LENGTH_SHORT).show(); } //return true; }// Method End. // Download On My Mobile SDCard or Emulator. public void DownloadOnSDcard() { try{ URL url = new URL(urlpath.toString()); // Your given URL. HttpURLConnection c = (HttpURLConnection) url.openConnection(); c.setRequestMethod("GET"); c.setDoOutput(true); c.connect(); // Connection Complete here.! //Toast.makeText(getApplicationContext(), "HttpURLConnection complete.", Toast.LENGTH_SHORT).show(); String PATH = Environment.getExternalStorageDirectory() + "/download/"; File file = new File(PATH); // PATH = /mnt/sdcard/download/ if (!file.exists()) { file.mkdirs(); } File outputFile = new File(file, ApkName.toString()); FileOutputStream fos = new FileOutputStream(outputFile); // Toast.makeText(getApplicationContext(), "SD Card Path: " + outputFile.toString(), Toast.LENGTH_SHORT).show(); InputStream is = c.getInputStream(); // Get from Server and Catch In Input Stream Object. byte[] buffer = new byte[1024]; int len1 = 0; while ((len1 = is.read(buffer)) != -1) { fos.write(buffer, 0, len1); // Write In FileOutputStream. } fos.close(); is.close();//till here, it works fine - .apk is download to my sdcard in download file. // So plz Check in DDMS tab and Select your Emualtor. //Toast.makeText(getApplicationContext(), "Download Complete on SD Card.!", Toast.LENGTH_SHORT).show(); //download the APK to sdcard then fire the Intent. } catch (IOException e) { Toast.makeText(getApplicationContext(), "Error! " + e.toString(), Toast.LENGTH_LONG).show(); } } }
感谢您分享这一点。 我已经实施和工作。 然而：
1）我安装我的应用程序的版本1（工作没问题）2）我把版本2放在服务器上。 该应用程序检索到ver2并保存到SD卡，并提示用户安装新的软件包ver2 3）ver2安装和按预期工作4）问题是，每次应用程序启动它希望用户再次重新安装版本2。
所以我以为解决scheme只是删除SD卡上的APK，但他们的asynchronous任务将简单地再次检索服务器的Ver2。
因此，再次尝试安装v2 apk的唯一方法是从sdcard和远程服务器中删除。
正如你可以想象，这是不是真的工作，因为我永远不会知道什么时候所有的用户都收到最新版本。
任何帮助解决这个不胜感激。
我实现了上面列出的“ldmuniz”方法。
新编辑：只是想我所有的APK都命名相同。 我应该命名myapk_v1.0xx.apk，并且在该版本中proactivily设置远程path以查找v.2.0何时发布？
我testing了这个理论，它解决了这个问题。 你需要命名你的APK文件文件某种版本，记住总是设置你的NEXT版本＃在你当前发布的应用程序。 不理想，但function。
有没有一种方法来读取Manifest中启动的远程APK的Android版本，或者在服务器上下载可用的APK文件，并在提示安装之前进行版本比较，以查看下载的APK是否是<或<当前安装的版本？
再次感谢
