src/com/android/packageinstaller/InstallAppProgress.java - platform/packages/apps/PackageInstaller - Git at Google

 /*
 **
 ** Copyright 2007, The Android Open Source Project
 **
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 **
 **     http://www.apache.org/licenses/LICENSE-2.0
 **
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 */
 package com.android.packageinstaller;

 import static android.content.pm.PackageInstaller.SessionParams.UID_UNKNOWN;

 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.PendingIntent;
 import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnCancelListener;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.PackageParser;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Message;
 import android.util.Log;
 import android.view.View;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 import com.android.packageinstaller.permission.utils.IoUtils;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.List;

 /**
  * This activity corresponds to a download progress screen that is displayed
  * when the user tries
  * to install an application bundled as an apk file. The result of the application install
  * is indicated in the result code that gets set to the corresponding installation status
  * codes defined in PackageManager. If the package being installed already exists,
  * the existing package is replaced with the new one.
  */
 public class InstallAppProgress extends Activity implements View.OnClickListener, OnCancelListener {
     private final String TAG="InstallAppProgress";
     private static final String BROADCAST_ACTION =
             "com.android.packageinstaller.ACTION_INSTALL_COMMIT";
     private static final String BROADCAST_SENDER_PERMISSION =
             "android.permission.INSTALL_PACKAGES";
     private ApplicationInfo mAppInfo;
     private Uri mPackageURI;
     private ProgressBar mProgressBar;
     private View mOkPanel;
     private TextView mStatusTextView;
     private TextView mExplanationTextView;
     private Button mDoneButton;
     private Button mLaunchButton;
     private final int INSTALL_COMPLETE = 1;
     private Intent mLaunchIntent;
     private static final int DLG_OUT_OF_SPACE = 1;
     private CharSequence mLabel;
     private HandlerThread mInstallThread;
     private Handler mInstallHandler;

     private Handler mHandler = new Handler() {
         public void handleMessage(Message msg) {
             switch (msg.what) {
                 case INSTALL_COMPLETE:
                     if (getIntent().getBooleanExtra(Intent.EXTRA_RETURN_RESULT, false)) {
                         Intent result = new Intent();
                         result.putExtra(Intent.EXTRA_INSTALL_RESULT, msg.arg1);
                         setResult(msg.arg1 == PackageInstaller.STATUS_SUCCESS
                                 ? Activity.RESULT_OK : Activity.RESULT_FIRST_USER,
                                         result);
                         clearCachedApkIfNeededAndFinish();
                         return;
                     }
                     // Update the status text
                     mProgressBar.setVisibility(View.GONE);
                     // Show the ok button
                     int centerTextLabel;
                     int centerExplanationLabel = -1;
                     if (msg.arg1 == PackageInstaller.STATUS_SUCCESS) {
                         mLaunchButton.setVisibility(View.VISIBLE);
                         ((ImageView)findViewById(R.id.center_icon))
                                 .setImageDrawable(getDrawable(R.drawable.ic_done_92));
                         centerTextLabel = R.string.install_done;
                         // Enable or disable launch button
                         mLaunchIntent = getPackageManager().getLaunchIntentForPackage(
                                 mAppInfo.packageName);
                         boolean enabled = false;
                         if(mLaunchIntent != null) {
                             List<ResolveInfo> list = getPackageManager().
                                     queryIntentActivities(mLaunchIntent, 0);
                             if (list != null && list.size() > 0) {
                                 enabled = true;
                             }
                         }
                         if (enabled) {
                             mLaunchButton.setOnClickListener(InstallAppProgress.this);
                         } else {
                             mLaunchButton.setEnabled(false);
                         }
                     } else if (msg.arg1 == PackageInstaller.STATUS_FAILURE_STORAGE){
                         showDialogInner(DLG_OUT_OF_SPACE);
                         return;
                     } else {
                         // Generic error handling for all other error codes.
                         ((ImageView)findViewById(R.id.center_icon))
                                 .setImageDrawable(getDrawable(R.drawable.ic_report_problem_92));
                         centerExplanationLabel = getExplanationFromErrorCode(msg.arg1);
                         centerTextLabel = R.string.install_failed;
                         mLaunchButton.setVisibility(View.GONE);
                     }
                     if (centerExplanationLabel != -1) {
                         mExplanationTextView.setText(centerExplanationLabel);
                         findViewById(R.id.center_view).setVisibility(View.GONE);
                         ((TextView)findViewById(R.id.explanation_status)).setText(centerTextLabel);
                         findViewById(R.id.explanation_view).setVisibility(View.VISIBLE);
                     } else {
                         ((TextView)findViewById(R.id.center_text)).setText(centerTextLabel);
                         findViewById(R.id.center_view).setVisibility(View.VISIBLE);
                         findViewById(R.id.explanation_view).setVisibility(View.GONE);
                     }
                     mDoneButton.setOnClickListener(InstallAppProgress.this);
                     mOkPanel.setVisibility(View.VISIBLE);
                     break;
                 default:
                     break;
             }
         }
     };

     private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             final int statusCode = intent.getIntExtra(
                     PackageInstaller.EXTRA_STATUS, PackageInstaller.STATUS_FAILURE);
             if (statusCode == PackageInstaller.STATUS_PENDING_USER_ACTION) {
                 context.startActivity((Intent)intent.getParcelableExtra(Intent.EXTRA_INTENT));
             } else {
                 onPackageInstalled(statusCode);
             }
         }
     };

     private int getExplanationFromErrorCode(int errCode) {
         Log.d(TAG, "Installation error code: " + errCode);
         switch (errCode) {
             case PackageInstaller.STATUS_FAILURE_BLOCKED:
                 return R.string.install_failed_blocked;
             case PackageInstaller.STATUS_FAILURE_CONFLICT:
                 return R.string.install_failed_conflict;
             case PackageInstaller.STATUS_FAILURE_INCOMPATIBLE:
                 return R.string.install_failed_incompatible;
             case PackageInstaller.STATUS_FAILURE_INVALID:
                 return R.string.install_failed_invalid_apk;
             default:
                 return -1;
         }
     }

     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         Intent intent = getIntent();
         mAppInfo = intent.getParcelableExtra(PackageUtil.INTENT_ATTR_APPLICATION_INFO);
         mPackageURI = intent.getData();

         final String scheme = mPackageURI.getScheme();
         if (scheme != null && !"file".equals(scheme) && !"package".equals(scheme)) {
             throw new IllegalArgumentException("unexpected scheme " + scheme);
         }

         mInstallThread = new HandlerThread("InstallThread");
         mInstallThread.start();
         mInstallHandler = new Handler(mInstallThread.getLooper());

         IntentFilter intentFilter = new IntentFilter();
         intentFilter.addAction(BROADCAST_ACTION);
         registerReceiver(
                 mBroadcastReceiver, intentFilter, BROADCAST_SENDER_PERMISSION, null /*scheduler*/);

         initView();
     }

     @Override
     public void onBackPressed() {
         clearCachedApkIfNeededAndFinish();
     }

     @SuppressWarnings("deprecation")
     @Override
     public Dialog onCreateDialog(int id, Bundle bundle) {
         switch (id) {
         case DLG_OUT_OF_SPACE:
             String dlgText = getString(R.string.out_of_space_dlg_text, mLabel);
             return new AlertDialog.Builder(this)
                     .setTitle(R.string.out_of_space_dlg_title)
                     .setMessage(dlgText)
                     .setPositiveButton(R.string.manage_applications, new DialogInterface.OnClickListener() {
                         public void onClick(DialogInterface dialog, int which) {
                             //launch manage applications
                             Intent intent = new Intent("android.intent.action.MANAGE_PACKAGE_STORAGE");
                             startActivity(intent);
                             clearCachedApkIfNeededAndFinish();
                         }
                     })
                     .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
                         public void onClick(DialogInterface dialog, int which) {
                             Log.i(TAG, "Canceling installation");
                             clearCachedApkIfNeededAndFinish();
                         }
                     })
                     .setOnCancelListener(this)
                     .create();
         }
        return null;
    }

     @SuppressWarnings("deprecation")
     private void showDialogInner(int id) {
         removeDialog(id);
         showDialog(id);
     }

     void onPackageInstalled(int statusCode) {
         Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
         msg.arg1 = statusCode;
         mHandler.sendMessage(msg);
     }

     int getInstallFlags(String packageName) {
         PackageManager pm = getPackageManager();
         try {
             PackageInfo pi =
                     pm.getPackageInfo(packageName, PackageManager.GET_UNINSTALLED_PACKAGES);
             if (pi != null) {
                 return PackageManager.INSTALL_REPLACE_EXISTING;
             }
         } catch (NameNotFoundException e) {
         }
         return 0;
     }

     private void doPackageStage(PackageManager pm, PackageInstaller.SessionParams params) {
         final PackageInstaller packageInstaller = pm.getPackageInstaller();
         PackageInstaller.Session session = null;
         try {
             final String packageLocation = mPackageURI.getPath();
             final File file = new File(packageLocation);
             final int sessionId = packageInstaller.createSession(params);
             final byte[] buffer = new byte[65536];

             session = packageInstaller.openSession(sessionId);

             final InputStream in = new FileInputStream(file);
             final long sizeBytes = file.length();
             final OutputStream out = session.openWrite("PackageInstaller", 0, sizeBytes);
             try {
                 int c;
                 while ((c = in.read(buffer)) != -1) {
                     out.write(buffer, 0, c);
                     if (sizeBytes > 0) {
                         final float fraction = ((float) c / (float) sizeBytes);
                         session.addProgress(fraction);
                     }
                 }
                 session.fsync(out);
             } finally {
                 IoUtils.closeQuietly(in);
                 IoUtils.closeQuietly(out);
             }

             // Create a PendingIntent and use it to generate the IntentSender
             Intent broadcastIntent = new Intent(BROADCAST_ACTION);
             PendingIntent pendingIntent = PendingIntent.getBroadcast(
                     InstallAppProgress.this /*context*/,
                     sessionId,
                     broadcastIntent,
                     PendingIntent.FLAG_UPDATE_CURRENT);
             session.commit(pendingIntent.getIntentSender());
         } catch (IOException e) {
             onPackageInstalled(PackageInstaller.STATUS_FAILURE);
         } finally {
             IoUtils.closeQuietly(session);
         }
     }

     void initView() {
         setContentView(R.layout.op_progress);

         final PackageUtil.AppSnippet as;
         final PackageManager pm = getPackageManager();
         final int installFlags = getInstallFlags(mAppInfo.packageName);

         if((installFlags & PackageManager.INSTALL_REPLACE_EXISTING )!= 0) {
             Log.w(TAG, "Replacing package:" + mAppInfo.packageName);
         }
         if ("package".equals(mPackageURI.getScheme())) {
             as = new PackageUtil.AppSnippet(pm.getApplicationLabel(mAppInfo),
                     pm.getApplicationIcon(mAppInfo));
         } else {
             final File sourceFile = new File(mPackageURI.getPath());
             as = PackageUtil.getAppSnippet(this, mAppInfo, sourceFile);
         }
         mLabel = as.label;
         PackageUtil.initSnippetForNewApp(this, as, R.id.app_snippet);
         mStatusTextView = (TextView)findViewById(R.id.center_text);
         mExplanationTextView = (TextView) findViewById(R.id.explanation);
         mProgressBar = (ProgressBar) findViewById(R.id.progress_bar);
         mProgressBar.setIndeterminate(true);
         // Hide button till progress is being displayed
         mOkPanel = findViewById(R.id.buttons_panel);
         mDoneButton = (Button)findViewById(R.id.done_button);
         mLaunchButton = (Button)findViewById(R.id.launch_button);
         mOkPanel.setVisibility(View.INVISIBLE);

         if ("package".equals(mPackageURI.getScheme())) {
             try {
                 pm.installExistingPackage(mAppInfo.packageName);
                 onPackageInstalled(PackageInstaller.STATUS_SUCCESS);
             } catch (PackageManager.NameNotFoundException e) {
                 onPackageInstalled(PackageInstaller.STATUS_FAILURE_INVALID);
             }
         } else {
             final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
                     PackageInstaller.SessionParams.MODE_FULL_INSTALL);
             params.referrerUri = getIntent().getParcelableExtra(Intent.EXTRA_REFERRER);
             params.originatingUri = getIntent().getParcelableExtra(Intent.EXTRA_ORIGINATING_URI);
             params.originatingUid = getIntent().getIntExtra(Intent.EXTRA_ORIGINATING_UID,
                     UID_UNKNOWN);

             File file = new File(mPackageURI.getPath());
             try {
                 params.setInstallLocation(PackageParser.parsePackageLite(file, 0).installLocation);
             } catch (PackageParser.PackageParserException e) {
                 Log.e(TAG, "Cannot parse package " + file + ". Assuming defaults.");
             }

             mInstallHandler.post(new Runnable() {
                 @Override
                 public void run() {
                     doPackageStage(pm, params);
                 }
             });
         }
     }

     @Override
     protected void onDestroy() {
         super.onDestroy();
         unregisterReceiver(mBroadcastReceiver);
         mInstallThread.getLooper().quitSafely();
     }

     public void onClick(View v) {
         if(v == mDoneButton) {
             if (mAppInfo.packageName != null) {
                 Log.i(TAG, "Finished installing "+mAppInfo.packageName);
             }
             clearCachedApkIfNeededAndFinish();
         } else if(v == mLaunchButton) {
             try {
                 startActivity(mLaunchIntent);
             } catch (ActivityNotFoundException e) {
                 Log.e(TAG, "Could not start activity", e);
             }
             clearCachedApkIfNeededAndFinish();
         }
     }

     public void onCancel(DialogInterface dialog) {
         clearCachedApkIfNeededAndFinish();
     }

     private void clearCachedApkIfNeededAndFinish() {
         // If we are installing from a content:// the apk is copied in the cache
         // dir and passed in here. As we aren't started for a result because our
         // caller needs to be able to forward the result, here we make sure the
         // staging file in the cache dir is removed.
         if ("file".equals(mPackageURI.getScheme()) && mPackageURI.getPath() != null
                 && mPackageURI.getPath().startsWith(getCacheDir().toString())) {
             File file = new File(mPackageURI.getPath());
             file.delete();
         }
         finish();
     }
 }
	/*
	**
	** Copyright 2007, The Android Open Source Project
	**
	** Licensed under the Apache License, Version 2.0 (the "License");
	** you may not use this file except in compliance with the License.
	** You may obtain a copy of the License at
	**
	** http://www.apache.org/licenses/LICENSE-2.0
	**
	** Unless required by applicable law or agreed to in writing, software
	** distributed under the License is distributed on an "AS IS" BASIS,
	** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	** See the License for the specific language governing permissions and
	** limitations under the License.
	*/
	package com.android.packageinstaller;

	import static android.content.pm.PackageInstaller.SessionParams.UID_UNKNOWN;

	import android.app.Activity;
	import android.app.AlertDialog;
	import android.app.Dialog;
	import android.app.PendingIntent;
	import android.content.ActivityNotFoundException;
	import android.content.BroadcastReceiver;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.DialogInterface.OnCancelListener;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.pm.ApplicationInfo;
	import android.content.pm.PackageInfo;
	import android.content.pm.PackageInstaller;
	import android.content.pm.PackageManager;
	import android.content.pm.PackageManager.NameNotFoundException;
	import android.content.pm.PackageParser;
	import android.content.pm.ResolveInfo;
	import android.net.Uri;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.HandlerThread;
	import android.os.Message;
	import android.util.Log;
	import android.view.View;
	import android.widget.Button;
	import android.widget.ImageView;
	import android.widget.ProgressBar;
	import android.widget.TextView;
	import com.android.packageinstaller.permission.utils.IoUtils;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.OutputStream;
	import java.util.List;

	/**
	* This activity corresponds to a download progress screen that is displayed
	* when the user tries
	* to install an application bundled as an apk file. The result of the application install
	* is indicated in the result code that gets set to the corresponding installation status
	* codes defined in PackageManager. If the package being installed already exists,
	* the existing package is replaced with the new one.
	*/
	public class InstallAppProgress extends Activity implements View.OnClickListener, OnCancelListener {
	private final String TAG="InstallAppProgress";
	private static final String BROADCAST_ACTION =
	"com.android.packageinstaller.ACTION_INSTALL_COMMIT";
	private static final String BROADCAST_SENDER_PERMISSION =
	"android.permission.INSTALL_PACKAGES";
	private ApplicationInfo mAppInfo;
	private Uri mPackageURI;
	private ProgressBar mProgressBar;
	private View mOkPanel;
	private TextView mStatusTextView;
	private TextView mExplanationTextView;
	private Button mDoneButton;
	private Button mLaunchButton;
	private final int INSTALL_COMPLETE = 1;
	private Intent mLaunchIntent;
	private static final int DLG_OUT_OF_SPACE = 1;
	private CharSequence mLabel;
	private HandlerThread mInstallThread;
	private Handler mInstallHandler;

	private Handler mHandler = new Handler() {
	public void handleMessage(Message msg) {
	switch (msg.what) {
	case INSTALL_COMPLETE:
	if (getIntent().getBooleanExtra(Intent.EXTRA_RETURN_RESULT, false)) {
	Intent result = new Intent();
	result.putExtra(Intent.EXTRA_INSTALL_RESULT, msg.arg1);
	setResult(msg.arg1 == PackageInstaller.STATUS_SUCCESS
	? Activity.RESULT_OK : Activity.RESULT_FIRST_USER,
	result);
	clearCachedApkIfNeededAndFinish();
	return;
	}
	// Update the status text
	mProgressBar.setVisibility(View.GONE);
	// Show the ok button
	int centerTextLabel;
	int centerExplanationLabel = -1;
	if (msg.arg1 == PackageInstaller.STATUS_SUCCESS) {
	mLaunchButton.setVisibility(View.VISIBLE);
	((ImageView)findViewById(R.id.center_icon))
	.setImageDrawable(getDrawable(R.drawable.ic_done_92));
	centerTextLabel = R.string.install_done;
	// Enable or disable launch button
	mLaunchIntent = getPackageManager().getLaunchIntentForPackage(
	mAppInfo.packageName);
	boolean enabled = false;
	if(mLaunchIntent != null) {
	List<ResolveInfo> list = getPackageManager().
	queryIntentActivities(mLaunchIntent, 0);
	if (list != null && list.size() > 0) {
	enabled = true;
	}
	}
	if (enabled) {
	mLaunchButton.setOnClickListener(InstallAppProgress.this);
	} else {
	mLaunchButton.setEnabled(false);
	}
	} else if (msg.arg1 == PackageInstaller.STATUS_FAILURE_STORAGE){
	showDialogInner(DLG_OUT_OF_SPACE);
	return;
	} else {
	// Generic error handling for all other error codes.
	((ImageView)findViewById(R.id.center_icon))
	.setImageDrawable(getDrawable(R.drawable.ic_report_problem_92));
	centerExplanationLabel = getExplanationFromErrorCode(msg.arg1);
	centerTextLabel = R.string.install_failed;
	mLaunchButton.setVisibility(View.GONE);
	}
	if (centerExplanationLabel != -1) {
	mExplanationTextView.setText(centerExplanationLabel);
	findViewById(R.id.center_view).setVisibility(View.GONE);
	((TextView)findViewById(R.id.explanation_status)).setText(centerTextLabel);
	findViewById(R.id.explanation_view).setVisibility(View.VISIBLE);
	} else {
	((TextView)findViewById(R.id.center_text)).setText(centerTextLabel);
	findViewById(R.id.center_view).setVisibility(View.VISIBLE);
	findViewById(R.id.explanation_view).setVisibility(View.GONE);
	}
	mDoneButton.setOnClickListener(InstallAppProgress.this);
	mOkPanel.setVisibility(View.VISIBLE);
	break;
	default:
	break;
	}
	}
	};

	private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	final int statusCode = intent.getIntExtra(
	PackageInstaller.EXTRA_STATUS, PackageInstaller.STATUS_FAILURE);
	if (statusCode == PackageInstaller.STATUS_PENDING_USER_ACTION) {
	context.startActivity((Intent)intent.getParcelableExtra(Intent.EXTRA_INTENT));
	} else {
	onPackageInstalled(statusCode);
	}
	}
	};

	private int getExplanationFromErrorCode(int errCode) {
	Log.d(TAG, "Installation error code: " + errCode);
	switch (errCode) {
	case PackageInstaller.STATUS_FAILURE_BLOCKED:
	return R.string.install_failed_blocked;
	case PackageInstaller.STATUS_FAILURE_CONFLICT:
	return R.string.install_failed_conflict;
	case PackageInstaller.STATUS_FAILURE_INCOMPATIBLE:
	return R.string.install_failed_incompatible;
	case PackageInstaller.STATUS_FAILURE_INVALID:
	return R.string.install_failed_invalid_apk;
	default:
	return -1;
	}
	}

	@Override
	public void onCreate(Bundle icicle) {
	super.onCreate(icicle);
	Intent intent = getIntent();
	mAppInfo = intent.getParcelableExtra(PackageUtil.INTENT_ATTR_APPLICATION_INFO);
	mPackageURI = intent.getData();

	final String scheme = mPackageURI.getScheme();
	if (scheme != null && !"file".equals(scheme) && !"package".equals(scheme)) {
	throw new IllegalArgumentException("unexpected scheme " + scheme);
	}

	mInstallThread = new HandlerThread("InstallThread");
	mInstallThread.start();
	mInstallHandler = new Handler(mInstallThread.getLooper());

	IntentFilter intentFilter = new IntentFilter();
	intentFilter.addAction(BROADCAST_ACTION);
	registerReceiver(
	mBroadcastReceiver, intentFilter, BROADCAST_SENDER_PERMISSION, null /scheduler/);

	initView();
	}

	@Override
	public void onBackPressed() {
	clearCachedApkIfNeededAndFinish();
	}

	@SuppressWarnings("deprecation")
	@Override
	public Dialog onCreateDialog(int id, Bundle bundle) {
	switch (id) {
	case DLG_OUT_OF_SPACE:
	String dlgText = getString(R.string.out_of_space_dlg_text, mLabel);
	return new AlertDialog.Builder(this)
	.setTitle(R.string.out_of_space_dlg_title)
	.setMessage(dlgText)
	.setPositiveButton(R.string.manage_applications, new DialogInterface.OnClickListener() {
	public void onClick(DialogInterface dialog, int which) {
	//launch manage applications
	Intent intent = new Intent("android.intent.action.MANAGE_PACKAGE_STORAGE");
	startActivity(intent);
	clearCachedApkIfNeededAndFinish();
	}
	})
	.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
	public void onClick(DialogInterface dialog, int which) {
	Log.i(TAG, "Canceling installation");
	clearCachedApkIfNeededAndFinish();
	}
	})
	.setOnCancelListener(this)
	.create();
	}
	return null;
	}

	@SuppressWarnings("deprecation")
	private void showDialogInner(int id) {
	removeDialog(id);
	showDialog(id);
	}

	void onPackageInstalled(int statusCode) {
	Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
	msg.arg1 = statusCode;
	mHandler.sendMessage(msg);
	}

	int getInstallFlags(String packageName) {
	PackageManager pm = getPackageManager();
	try {
	PackageInfo pi =
	pm.getPackageInfo(packageName, PackageManager.GET_UNINSTALLED_PACKAGES);
	if (pi != null) {
	return PackageManager.INSTALL_REPLACE_EXISTING;
	}
	} catch (NameNotFoundException e) {
	}
	return 0;
	}

	private void doPackageStage(PackageManager pm, PackageInstaller.SessionParams params) {
	final PackageInstaller packageInstaller = pm.getPackageInstaller();
	PackageInstaller.Session session = null;
	try {
	final String packageLocation = mPackageURI.getPath();
	final File file = new File(packageLocation);
	final int sessionId = packageInstaller.createSession(params);
	final byte[] buffer = new byte[65536];

	session = packageInstaller.openSession(sessionId);

	final InputStream in = new FileInputStream(file);
	final long sizeBytes = file.length();
	final OutputStream out = session.openWrite("PackageInstaller", 0, sizeBytes);
	try {
	int c;
	while ((c = in.read(buffer)) != -1) {
	out.write(buffer, 0, c);
	if (sizeBytes > 0) {
	final float fraction = ((float) c / (float) sizeBytes);
	session.addProgress(fraction);
	}
	}
	session.fsync(out);
	} finally {
	IoUtils.closeQuietly(in);
	IoUtils.closeQuietly(out);
	}

	// Create a PendingIntent and use it to generate the IntentSender
	Intent broadcastIntent = new Intent(BROADCAST_ACTION);
	PendingIntent pendingIntent = PendingIntent.getBroadcast(
	InstallAppProgress.this /context/,
	sessionId,
	broadcastIntent,
	PendingIntent.FLAG_UPDATE_CURRENT);
	session.commit(pendingIntent.getIntentSender());
	} catch (IOException e) {
	onPackageInstalled(PackageInstaller.STATUS_FAILURE);
	} finally {
	IoUtils.closeQuietly(session);
	}
	}

	void initView() {
	setContentView(R.layout.op_progress);

	final PackageUtil.AppSnippet as;
	final PackageManager pm = getPackageManager();
	final int installFlags = getInstallFlags(mAppInfo.packageName);

	if((installFlags & PackageManager.INSTALL_REPLACE_EXISTING )!= 0) {
	Log.w(TAG, "Replacing package:" + mAppInfo.packageName);
	}
	if ("package".equals(mPackageURI.getScheme())) {
	as = new PackageUtil.AppSnippet(pm.getApplicationLabel(mAppInfo),
	pm.getApplicationIcon(mAppInfo));
	} else {
	final File sourceFile = new File(mPackageURI.getPath());
	as = PackageUtil.getAppSnippet(this, mAppInfo, sourceFile);
	}
	mLabel = as.label;
	PackageUtil.initSnippetForNewApp(this, as, R.id.app_snippet);
	mStatusTextView = (TextView)findViewById(R.id.center_text);
	mExplanationTextView = (TextView) findViewById(R.id.explanation);
	mProgressBar = (ProgressBar) findViewById(R.id.progress_bar);
	mProgressBar.setIndeterminate(true);
	// Hide button till progress is being displayed
	mOkPanel = findViewById(R.id.buttons_panel);
	mDoneButton = (Button)findViewById(R.id.done_button);
	mLaunchButton = (Button)findViewById(R.id.launch_button);
	mOkPanel.setVisibility(View.INVISIBLE);

	if ("package".equals(mPackageURI.getScheme())) {
	try {
	pm.installExistingPackage(mAppInfo.packageName);
	onPackageInstalled(PackageInstaller.STATUS_SUCCESS);
	} catch (PackageManager.NameNotFoundException e) {
	onPackageInstalled(PackageInstaller.STATUS_FAILURE_INVALID);
	}
	} else {
	final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
	PackageInstaller.SessionParams.MODE_FULL_INSTALL);
	params.referrerUri = getIntent().getParcelableExtra(Intent.EXTRA_REFERRER);
	params.originatingUri = getIntent().getParcelableExtra(Intent.EXTRA_ORIGINATING_URI);
	params.originatingUid = getIntent().getIntExtra(Intent.EXTRA_ORIGINATING_UID,
	UID_UNKNOWN);

	File file = new File(mPackageURI.getPath());
	try {
	params.setInstallLocation(PackageParser.parsePackageLite(file, 0).installLocation);
	} catch (PackageParser.PackageParserException e) {
	Log.e(TAG, "Cannot parse package " + file + ". Assuming defaults.");
	}

	mInstallHandler.post(new Runnable() {
	@Override
	public void run() {
	doPackageStage(pm, params);
	}
	});
	}
	}

	@Override
	protected void onDestroy() {
	super.onDestroy();
	unregisterReceiver(mBroadcastReceiver);
	mInstallThread.getLooper().quitSafely();
	}

	public void onClick(View v) {
	if(v == mDoneButton) {
	if (mAppInfo.packageName != null) {
	Log.i(TAG, "Finished installing "+mAppInfo.packageName);
	}
	clearCachedApkIfNeededAndFinish();
	} else if(v == mLaunchButton) {
	try {
	startActivity(mLaunchIntent);
	} catch (ActivityNotFoundException e) {
	Log.e(TAG, "Could not start activity", e);
	}
	clearCachedApkIfNeededAndFinish();
	}
	}

	public void onCancel(DialogInterface dialog) {
	clearCachedApkIfNeededAndFinish();
	}

	private void clearCachedApkIfNeededAndFinish() {
	// If we are installing from a content:// the apk is copied in the cache
	// dir and passed in here. As we aren't started for a result because our
	// caller needs to be able to forward the result, here we make sure the
	// staging file in the cache dir is removed.
	if ("file".equals(mPackageURI.getScheme()) && mPackageURI.getPath() != null
	&& mPackageURI.getPath().startsWith(getCacheDir().toString())) {
	File file = new File(mPackageURI.getPath());
	file.delete();
	}
	finish();
	}
	}