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/*
**
** 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 com.android.packageinstaller.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.content.pm.PackageManager.NameNotFoundException;
/*
* This activity presents UI to uninstall an application. Usually launched with intent
* Intent.ACTION_UNINSTALL_PKG_COMMAND and attribute
* com.android.packageinstaller.PackageName set to the application package name
*/
public class UninstallerActivity extends Activity implements OnClickListener {
private static final String TAG = "UninstallerActivity";
private boolean localLOGV = false;
//states indicating status of ui display when uninstalling application
private static final int UNINSTALL_CONFIRM=1;
private static final int UNINSTALL_PROGRESS=2;
private static final int UNINSTALL_DONE=3;
private int mCurrentState = UNINSTALL_CONFIRM;
PackageManager mPm;
private ApplicationInfo mAppInfo;
private Button mOk;
private Button mCancel;
private void startUninstallProgress() {
Intent newIntent = new Intent(Intent.ACTION_VIEW);
newIntent.putExtra(PackageUtil.INTENT_ATTR_APPLICATION_INFO,
mAppInfo);
newIntent.setClass(this, UninstallAppProgress.class);
startActivityForResult(newIntent, UNINSTALL_PROGRESS);
}
private void startUninstallDone(boolean result) {
Intent newIntent = new Intent(Intent.ACTION_VIEW);
newIntent.putExtra(PackageUtil.INTENT_ATTR_APPLICATION_INFO,
mAppInfo);
newIntent.putExtra(PackageUtil.INTENT_ATTR_INSTALL_STATUS, result);
newIntent.setClass(this, UninstallAppDone.class);
startActivityForResult(newIntent, UNINSTALL_DONE);
}
private void displayErrorDialog(int msgId) {
//display confirmation dialog
new AlertDialog.Builder(this)
.setTitle(getString(R.string.app_not_found_dlg_title))
.setIcon(com.android.internal.R.drawable.ic_dialog_alert)
.setMessage(getString(msgId))
.setNeutralButton(getString(R.string.dlg_ok),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
//force to recompute changed value
finish();
}
}
)
.show();
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
//get intent information
final Intent intent = getIntent();
Uri packageURI = intent.getData();
String packageName = packageURI.getEncodedSchemeSpecificPart();
if(packageName == null) {
Log.e(TAG, "Invalid package name:"+packageName);
displayErrorDialog(R.string.app_not_found_dlg_text);
return;
}
//initialize package manager
mPm = getPackageManager();
boolean errFlag = false;
try {
mAppInfo = mPm.getApplicationInfo(packageName, PackageManager.GET_UNINSTALLED_PACKAGES);
} catch (NameNotFoundException e) {
errFlag = true;
}
if(mAppInfo == null || errFlag) {
Log.e(TAG, "Invalid application:"+packageName);
displayErrorDialog(R.string.app_not_found_dlg_text);
} else {
requestWindowFeature(Window.FEATURE_NO_TITLE);
//set view
setContentView(R.layout.uninstall_confirm);
PackageUtil.initAppSnippet(this, mAppInfo, R.id.app_snippet);
//initialize ui elements
mOk = (Button)findViewById(R.id.ok_button);
mCancel = (Button)findViewById(R.id.cancel_button);
mOk.setOnClickListener(this);
mCancel.setOnClickListener(this);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
boolean finish = true;
switch(requestCode) {
case UNINSTALL_PROGRESS:
finish = false;
mCurrentState = UNINSTALL_DONE;
//start the next screen to show final status of installation
startUninstallDone(resultCode==UninstallAppProgress.SUCCEEDED);
break;
case UNINSTALL_DONE:
//neednt check for result code here
break;
default:
break;
}
if(finish) {
//finish off this activity to return to the previous activity that launched it
Log.i(TAG, "Finishing off activity");
finish();
}
}
private void finishAndReturn() {
finish();
}
public void onClick(View v) {
if(v == mOk) {
//initiate next screen
startUninstallProgress();
} else if(v == mCancel) {
finishAndReturn();
}
}
}
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