ABP/Android update service

src/org/adblockplus/android/updater/UpdaterActivity.java

+package org.adblockplus.android.updater;
+
+import java.io.File;
+
+import org.adblockplus.android.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnCancelListener;
+import android.content.DialogInterface.OnClickListener;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.view.Window;
+
+/**
+ * Prompts user to download update or installs downloaded update.
+ */
+public class UpdaterActivity extends Activity
+{
+  @Override
+  public void onCreate(Bundle savedInstanceState)
+  {
+    super.onCreate(savedInstanceState);
+
+    requestWindowFeature(Window.FEATURE_NO_TITLE);
+
+    // Prompt user to download update
+    if ("download".equals(getIntent().getAction()))
+    {
+      final Bundle extras = getIntent().getExtras();
+      if (extras == null || extras.getString("url") == null)
+      {
+        finish();
+        return;
+      }
+
+      new AlertDialog.Builder(this).setTitle(R.string.msg_update_available).setMessage(getString(R.string.msg_update_description)).setIcon(android.R.drawable.ic_dialog_info)
+          .setPositiveButton(R.string.ok, new OnClickListener() {
+            @Override
+            public void onClick(DialogInterface arg0, int arg1)
+            {
+              // Start download service
+              startService(new Intent(UpdaterActivity.this, UpdaterService.class).putExtras(extras));
+              finish();
+            }
+          }).setNegativeButton(R.string.cancel, new OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which)
+            {
+              finish();
+            }
+          }).setOnCancelListener(new OnCancelListener() {
+            @Override
+            public void onCancel(DialogInterface dialog)
+            {
+              finish();
+            }
+          }).create().show();
+    }
+    // Install downloaded update
+    else
+    {
+      String file = getIntent().getStringExtra("path");
+      File updateFile = new File(file);
+      try
+      {
+        Intent installerIntent = new Intent();
+        installerIntent.setAction(Intent.ACTION_VIEW);
+        installerIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        installerIntent.setDataAndType(Uri.fromFile(updateFile), "application/vnd.android.package-archive");
+        startActivity(installerIntent);
+        android.os.Process.killProcess(android.os.Process.myPid());
+      }
+      catch (Exception e)
+      {
+        e.printStackTrace();
+      }
+    }
+  }
+
+}