上代码：
package com.forelid.ispa.support.utils;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.content.pm.ApplicationInfo;import android.content.pm.PackageParser;import android.net.Uri; import android.util.Log; import android.util.DisplayMetrics;import android.content.pm.IPackageInstallObserver; import android.content.pm.IPackageDeleteObserver; import android.os.FileUtils; import android.os.Handler;import android.os.Message; public class PackageInstaller { private File mTmpFile; private final int INSTALL_COMPLETE = 1; final static int SUCCEEDED = 1; final static int FAILED = 0; private final static String TAG = "PackInstaller"; private Context mContext; private ApplicationInfo mAppInfo; 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) { Log.i(TAG, "path=" + path); int installFlags = 0; Uri mPackageURI = Uri.fromFile(new File(path)); PackageParser.Package mPkgInfo = getPackageInfo(mPackageURI); mAppInfo = mPkgInfo.applicationInfo; String packageName = mAppInfo.packageName; Log.i(TAG, "====install packageName =" + packageName); 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); } PackageInstallObserver observer = new PackageInstallObserver(); pm.installPackage(mPackageURI, observer, installFlags, packageName); } 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); } /* * Utility method to get package information for a given packageURI */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(); PackageParser.Package pkg = packageParser.parsePackage(sourceFile, archiveFilePath, metrics, 0); // Nuke the parser reference. packageParser = null; return pkg;}/** Utility method to get application information for a given packageURI*/public ApplicationInfo getApplicationInfo(Uri packageURI) { final String archiveFilePath = packageURI.getPath(); PackageParser packageParser = new PackageParser(archiveFilePath); File sourceFile = new File(archiveFilePath); DisplayMetrics metrics = new DisplayMetrics(); metrics.setToDefaults(); PackageParser.Package pkg = packageParser.parsePackage(sourceFile, archiveFilePath, metrics, 0); if (pkg == null) { return null; } return pkg.applicationInfo;}private Handler mHandler = new Handler() { public void handleMessage(Message msg) { switch (msg.what) { case INSTALL_COMPLETE: if (msg.arg1 == SUCCEEDED) { } else { } break; default: break; } } };}?