1、 Android.mk文件
- LOCAL_PATH:= $(call my-dir)
- include $(CLEAR_VARS)
- LOCAL_MODULE_TAGS := optional
- LOCAL_SRC_FILES := $(call all-subdir-java-files)
- LOCAL_PACKAGE_NAME := PackageInstaller
- LOCAL_CERTIFICATE := platform
- include $(BUILD_PACKAGE)
2、PakcageInstaller.java文件(关键代码)
package cn.ceadic.apkmgr;
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.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.util.Log;
import android.content.pm.IPackageInstallObserver;
import android.content.pm.IPackageDeleteObserver;
import android.os.FileUtils;
public class PackageInstaller {
private File mTmpFile;
private final String TMP_FILE_NAME = "tmpCopy.apk";
private final static String TAG = "PackInstaller";
private Context mContext;
public PackageInstaller(Context context) {
mContext = context;
}
public void install(String path,String packageName){
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(path)),
"application/vnd.android.package-archive");
mContext.startActivity(intent);
}
public void instatllBatch(String path, String packageName) {
Log.i(TAG, "path=" + path);
int installFlags = 0;
PackageManager pm = mContext.getPackageManager();
try {
PackageInfo pi = pm.getPackageInfo(packageName,
PackageManager.GET_UNINSTALLED_PACKAGES);
if (pi != null) {
installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
}
} catch (NameNotFoundException e) {
}
if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
Log.w(TAG, "Replacing package:" + packageName);
}
// Create temp file before invoking install api
mTmpFile = createTempPackageFile(path);
if (mTmpFile == null) {
// Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
// msg.arg1 = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
// mHandler.sendMessage(msg);
return;
}
Uri mPackageURI = Uri.parse("file://" + mTmpFile.getPath());
String installerPackageName = mContext.getIntent().getStringExtra(
Intent.EXTRA_INSTALLER_PACKAGE_NAME);
PackageInstallObserver observer = new PackageInstallObserver();
pm.installPackage(mPackageURI, observer, installFlags,
installerPackageName);
}
private File createTempPackageFile(String filePath) {
File tmpPackageFile = mContext.getFileStreamPath(TMP_FILE_NAME);
if (tmpPackageFile == null) {
Log.w(TAG, "Failed to create temp file");
return null;
}
if (tmpPackageFile.exists()) {
tmpPackageFile.delete();
}
// Open file to make it world readable
FileOutputStream fos;
try {
fos = openFileOutput(TMP_FILE_NAME, MODE_WORLD_READABLE);
} catch (FileNotFoundException e1) {
Log.e(TAG, "Error opening file " + TMP_FILE_NAME);
return null;
}
try {
fos.close();
} catch (IOException e) {
Log.e(TAG, "Error opening file " + TMP_FILE_NAME);
return null;
}
File srcPackageFile = new File(filePath);
if (!FileUtils.copyFile(srcPackageFile, tmpPackageFile)) {
Log.w(TAG, "Failed to make copy of file: " + srcPackageFile);
return null;
}
return tmpPackageFile;
}
private class PackageInstallObserver extends IPackageInstallObserver.Stub {
public void packageInstalled(String packageName, int returnCode) {
// Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
// msg.arg1 = returnCode;
// mHandler.sendMessage(msg);
Log.i(TAG, "====INSTALL_COMPLETE");
}
}
private class PackageDeleteObserver extends IPackageDeleteObserver.Stub {
public void packageDeleted(boolean succeeded) {
// Message msg = mHandler.obtainMessage(UNINSTALL_COMPLETE);
// msg.arg1 = succeeded?SUCCEEDED:FAILED;
// mHandler.sendMessage(msg);
Log.i(TAG, "====UNINSTALL_COMPLETE");
}
}
public void uninstall(String packageName){
Uri packageURI = Uri.parse("package:" + packageName);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE,
packageURI);
mContext.startActivity(uninstallIntent);
}
public void uninstallBatch(String packageName) {
PackageDeleteObserver observer = new PackageDeleteObserver();
mContext.getPackageManager().deletePackage(packageName, observer, 0);
}
}
3 添加权限.
- <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
- <uses-permission android:name="android.permission.INSTALL_PACKAGES" />
- <uses-permission android:name="android.permission.DELETE_PACKAGES" />
- <uses-permission android:name="android.permission.CLEAR_APP_CACHE" />
- <uses-permission android:name="android.permission.READ_PHONE_STATE" />
- <uses-permission android:name="android.permission.CLEAR_APP_USER_DATA" />
安装程序的方法:
1、 通过Intent机制,调出系统安装应用,重新安装应用的话,会保留原应用的数据。
String fileName = Environment.getExternalStorageDirectory() + apkName;
Uri uri = Uri.fromFile(new File(fileName));
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri, application/vnd.android.package-archive");
startActivity(intent);
2、 直接调用安装接口。
Uri mPackageURI = Uri.fromFile(new File(Environment.getExternalStorageDirectory() + apkName));
int installFlags = 0;
PackageManager pm = getPackageManager();
try
{
PackageInfo pi = pm.getPackageInfo(packageName,
PackageManager.GET_UNINSTALLED_PACKAGES);
if(pi != null)
{
installFlags |= PackageManager.REPLACE_EXISTING_PACKAGE;
}
}
catch (NameNotFoundException e)
{}
PackageInstallObserver observer = new PackageInstallObserver();
pm.installPackage(mPackageURI, observer, installFlags);
安装应用权限:android.permission.INSTALL_PACKAGES
系统应用(安装在/system/app下面)可以采用该方式,第三方应用无法申请安装卸载权限。
java.lang.SecurityException: Neither user 10039 nor current process has android.permission.INSTALL_PACKAGES.
3、 执行install命令。
install –r 更新安装,默认新安装;如果不附上-r参数,则会清楚原应用的数据,版本一致则无法安装。
(1)am start …
(2)Runtime.exec(String[] args)
(3)Class<?> execClass = Class.forName("android.os.Exec");
4、 执行cp / adb push命令。
由系统检测到应用程序有更新,自动完成重新安装。
5、 通过第三方软件实现。
Market,EOE,eTrackDog均采用第一种方法实现更新。
优点:由系统核心应用程序控制安装程序;
缺点:无法控制安装过程;安装完成后,也无法立刻启动应用,需要用户确认;无法扩展。
实例:Market查找安装程序
Intent intent =
new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=pname:your.app.id"));
startActivity(intent);
卸载程序的方法:
1、 通过Intent机制,调出系统卸载应用。
Uri packageURI = Uri.parse("package: your.app.id");
Intent intent = new Intent(Intent.ACTION_DELETE);
startActivity(intent);
2、 直接调用卸载接口。
PackageInstallObserver observer = new PackageInstallObserver();
pm.installPackage(mPackageURI, observer, installFlags);
卸载应用权限:android.permission.DELETE_PACKAGES
3、 运行rm apk安装文件,由系统检测后调用卸载应用。