这也是当年写的一个项目，现在整理一下发给大家。最近准备用VC++写一个客户端，可以实现给手机安装备份的绿色软件。不包含后台服务和广告。服务端就按现在这个工程代码一起实现。先看项目截图吧，当然放到APP市场下载量惨淡，哈哈……
package com.lee.my.helper;
import java.io.File;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import android.app.ProgressDialog;
import android.app.TabActivity;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.os.StatFs;
import android.util.DisplayMetrics;
import android.view.Window;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.Toast;
import com.lee.my.helper.adapter.ApplicationItem;
import com.lee.my.helper.tools.Tools;
public class MyHelperActivity extends TabActivity {
protected static final String backupPath = "/sdcard/Android/backup";
public static ArrayList<ApplicationItem> installApps = new ArrayList<ApplicationItem>();
public static ArrayList<ApplicationItem> restoreApps = new ArrayList<ApplicationItem>();
public static float block;
public static float totalBlocks;
public static float availaBlock;
private static MyHelperActivity mainActivity;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().getDecorView().setKeepScreenOn(true);
mainActivity = this;
TabHost tabHost = getTabHost();
tabHost.addTab(tabHost
.newTabSpec("run")
.setIndicator("清理",
getResources().getDrawable(R.drawable.cache))
.setContent(new Intent(this, RunAppActivity.class)));
tabHost.addTab(tabHost
.newTabSpec("user")
.setIndicator("用户", getResources().getDrawable(R.drawable.user))
.setContent(new Intent(this, UsersActivity.class)));
tabHost.addTab(tabHost
.newTabSpec("system")
.setIndicator("系统",
getResources().getDrawable(R.drawable.system))
.setContent(new Intent(this, SystemActivity.class)));
tabHost.addTab(tabHost
.newTabSpec("backup")
.setIndicator("备份",
getResources().getDrawable(R.drawable.backup))
.setContent(new Intent(this, BackUpActivity.class)));
tabHost.addTab(tabHost
.newTabSpec("restore")
.setIndicator("还原",
getResources().getDrawable(R.drawable.restore))
.setContent(new Intent(this, RestoreActivity.class)));
tabHost.setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
// TODO Auto-generated method stub
handler.sendEmptyMessage(1);
}
});
Tools.runRootCommand("");// 取得ROOT权限
init();
}
public Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
switch (msg.what) {
case 1:
if (BackUpActivity.adapter != null)
BackUpActivity.adapter.notifyDataSetChanged();
if (RestoreActivity.adapter != null)
RestoreActivity.adapter.notifyDataSetChanged();
break;
case 2:
if (dialog != null)
dialog.dismiss();
break;
}
}
};
public static void flush() {
installApps.clear();
restoreApps.clear();
mainActivity.getInstalledApps(false);
mainActivity.getRestoreApps();
mainActivity.getSDInfo();
mainActivity.process();
}
protected ProgressDialog dialog;
public void init() {
dialog = new ProgressDialog(this);
dialog.setTitle("提示");
dialog.setMessage("初始化中，请稍后……");
dialog.show();
new Thread() {
@Override
public void run() {
// TODO Auto-generated method stub
installApps.clear();
restoreApps.clear();
getInstalledApps(false);
getRestoreApps();
getSDInfo();
process();
}
}.start();
}
public static void flushAppList(){
for (int i = 0; i < installApps.size(); i++) {
ApplicationItem item = installApps.get(i);
item.remark = "可备份";
item.same = false;
}
for (int j = 0; j < restoreApps.size(); j++) {
ApplicationItem item = restoreApps.get(j);
item.remark = "可还原";
item.same = false;
}
for (int i = 0; i < installApps.size(); i++) {
ApplicationItem item = installApps.get(i);
for (int j = 0; j < restoreApps.size(); j++) {
ApplicationItem item2 = restoreApps.get(j);
if (item.appName.equals(item2.appName)) {
item.same = true;
item2.same = true;
item.remark = "已备份";
item2.remark = "已安装";
break;
}
}
}
if (BackUpActivity.adapter != null)
BackUpActivity.adapter.notifyDataSetChanged();
if (RestoreActivity.adapter != null)
RestoreActivity.adapter.notifyDataSetChanged();
}
public void process() {
for (int i = 0; i < installApps.size(); i++) {
ApplicationItem item = installApps.get(i);
item.remark = "可备份";
item.same = false;
}
for (int j = 0; j < restoreApps.size(); j++) {
ApplicationItem item = restoreApps.get(j);
item.remark = "可还原";
item.same = false;
}
for (int i = 0; i < installApps.size(); i++) {
ApplicationItem item = installApps.get(i);
for (int j = 0; j < restoreApps.size(); j++) {
ApplicationItem item2 = restoreApps.get(j);
if (item.appName.equals(item2.appName)) {
item.same = true;
item2.same = true;
item.remark = "已备份";
item2.remark = "已安装";
break;
}
}
}
handler.sendEmptyMessage(2);
}
public void getSDInfo() {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
File path = Environment.getExternalStorageDirectory();
StatFs statfs = new StatFs(path.getPath());
block = statfs.getBlockSize();
totalBlocks = statfs.getBlockCount();
availaBlock = statfs.getAvailableBlocks();
}
}
public void getApkFileInfo(String apkPath) {
File apkFile = new File(apkPath);
if (!apkFile.exists() || !apkPath.toLowerCase().endsWith(".apk")) {
System.out.println("文件路径不正确");
}
String PATH_PackageParser = "android.content.pm.PackageParser";
String PATH_AssetManager = "android.content.res.AssetManager";
try {
// 反射得到pkgParserCls对象并实例化,有参数
Class<?> pkgParserCls = Class.forName(PATH_PackageParser);
Class<?>[] typeArgs = { String.class };
Constructor<?> pkgParserCt = pkgParserCls.getConstructor(typeArgs);
Object[] valueArgs = { apkPath };
Object pkgParser = pkgParserCt.newInstance(valueArgs);
// 从pkgParserCls类得到parsePackage方法
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();// 这个是与显示有关的, 这边使用默认
typeArgs = new Class<?>[] { File.class, String.class,
DisplayMetrics.class, int.class };
Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod(
"parsePackage", typeArgs);
valueArgs = new Object[] { new File(apkPath), apkPath, metrics, 0 };
// 执行pkgParser_parsePackageMtd方法并返回
Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser,
valueArgs);
// 从返回的对象得到名为"applicationInfo"的字段对象
if (pkgParserPkg == null) {
return;
}
Field appInfoFld = pkgParserPkg.getClass().getDeclaredField(
"applicationInfo");
// 从对象"pkgParserPkg"得到字段"appInfoFld"的值
if (appInfoFld.get(pkgParserPkg) == null) {
return;
}
ApplicationInfo info = (ApplicationInfo) appInfoFld
.get(pkgParserPkg);
// 反射得到assetMagCls对象并实例化,无参
Class<?> assetMagCls = Class.forName(PATH_AssetManager);
Object assetMag = assetMagCls.newInstance();
// 从assetMagCls类得到addAssetPath方法
typeArgs = new Class[1];
typeArgs[0] = String.class;
Method assetMag_addAssetPathMtd = assetMagCls.getDeclaredMethod(
"addAssetPath", typeArgs);
valueArgs = new Object[1];
valueArgs[0] = apkPath;
// 执行assetMag_addAssetPathMtd方法
assetMag_addAssetPathMtd.invoke(assetMag, valueArgs);
// 得到Resources对象并实例化,有参数
Resources res = getResources();
typeArgs = new Class[3];
typeArgs[0] = assetMag.getClass();
typeArgs[1] = res.getDisplayMetrics().getClass();
typeArgs[2] = res.getConfiguration().getClass();
Constructor<Resources> resCt = Resources.class
.getConstructor(typeArgs);
valueArgs = new Object[3];
valueArgs[0] = assetMag;
valueArgs[1] = res.getDisplayMetrics();
valueArgs[2] = res.getConfiguration();
res = (Resources) resCt.newInstance(valueArgs);
ApplicationItem item = null;
// 读取apk文件的信息
if (info != null) {
Drawable icon = res.getDrawable(info.icon);
String packageName = info.packageName;
String appName = null;
if (info.labelRes != 0)
appName = res.getText(info.labelRes).toString();// 名字
else
appName = info.loadLabel(getPackageManager()).toString();
String sourceDir = info.sourceDir;
item = new ApplicationItem(icon, packageName, appName,
sourceDir);
PackageManager pm = getPackageManager();
PackageInfo pinfo = pm.getPackageArchiveInfo(apkPath,
PackageManager.GET_ACTIVITIES);
item.apkPath = apkPath;
item.version = pinfo.versionName;
restoreApps.add(item);
}
} catch (Exception e) {
e.printStackTrace();
}
}
protected void getRestoreApps() {
File file = new File(backupPath);
if (file.exists()) {
String[] files = file.list();
for (int i = 0; files != null && i < files.length; i++) {
getApkFileInfo(backupPath + "/" + files[i]);
}
}
}
protected void getInstalledApps(boolean getSysPackages) {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
List<PackageInfo> packs = getPackageManager().getInstalledPackages(
0);
for (int i = 0; i < packs.size(); i++) {
PackageInfo p = packs.get(i);
ApplicationInfo info = p.applicationInfo;
if (!getSysPackages && info.sourceDir.startsWith("/system"))
continue;
Drawable icon = info.loadIcon(getPackageManager());
String packageName = info.packageName;
String appName = info.loadLabel(getPackageManager()).toString();
String sourceDir = info.sourceDir;
ApplicationItem item = new ApplicationItem(icon, packageName,
appName, sourceDir);
item.version = p.versionName;
installApps.add(item);
}
} else if (Environment.getExternalStorageState().equals(
Environment.MEDIA_REMOVED)) {
Toast.makeText(this, "没有sdCard", Toast.LENGTH_LONG).show();
}
}
@Override
public void finish() {
// TODO Auto-generated method stub
super.finish();
System.exit(0);
}
}
下载地址:MyHelper 推荐阅读
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