/**
* Copyright (C) 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.settings;
import com.android.settings.R;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.ApplicationInfo;
import android.content.pm.IPackageDataObserver;
import android.content.pm.IPackageStatsObserver;
import android.content.pm.PackageManager;
import android.content.pm.PackageStats;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.format.Formatter;
import android.util.Config;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
import android.content.ComponentName;
import android.view.View;
import android.widget.AppSecurityPermissions;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
* Activity to display application information from Settings. This activity presents
* extended information associated with a package like code, data, total size, permissions
* used by the application and also the set of default launchable activities.
* For system applications, an option to clear user data is displayed only if data size is > 0.
* System applications that do not want clear user data do not have this option.
* For non-system applications, there is no option to clear data. Instead there is an option to
* uninstall the application.
*/
public class InstalledAppDetails extends Activity implements View.OnClickListener, DialogInterface.OnClickListener {
private static final String TAG="InstalledAppDetails";
private static final int _UNKNOWN_APP=R.string.unknown;
private ApplicationInfo mAppInfo;
private Button mAppButton;
private Button mActivitiesButton;
private boolean mCanUninstall;
private boolean localLOGV=Config.LOGV || false;
private TextView mAppSnippetSize;
private TextView mTotalSize;
private TextView mAppSize;
private TextView mDataSize;
private PkgSizeObserver mSizeObserver;
private ClearUserDataObserver mClearDataObserver;
// Views related to cache info
private View mCachePanel;
private TextView mCacheSize;
private Button mClearCacheButton;
private ClearCacheObserver mClearCacheObserver;
private Button mForceStopButton;
PackageStats mSizeInfo;
private Button mManageSpaceButton;
private PackageManager mPm;
//internal constants used in Handler
private static final int OP_SUCCESSFUL = 1;
private static final int OP_FAILED = 2;
private static final int CLEAR_USER_DATA = 1;
private static final int GET_PKG_SIZE = 2;
private static final int CLEAR_CACHE = 3;
private static final String ATTR_PACKAGE_STATS="PackageStats";
// invalid size value used initially and also when size retrieval through PackageManager
// fails for whatever reason
private static final int SIZE_INVALID = -1;
// Resource strings
private CharSequence mInvalidSizeStr;
private CharSequence mComputingStr;
private CharSequence mAppButtonText;
// Possible btn states
private enum AppButtonStates {
CLEAR_DATA,
UNINSTALL,
NONE
}
private AppButtonStates mAppButtonState;
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case CLEAR_USER_DATA:
processClearMsg(msg);
break;
case GET_PKG_SIZE:
refreshSizeInfo(msg);
break;
case CLEAR_CACHE:
// Refresh size info
mPm.getPackageSizeInfo(mAppInfo.packageName, mSizeObserver);
break;
default:
break;
}
}
};
private boolean isUninstallable() {
if (((mAppInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) &&
((mAppInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) == 0)) {
return false;
}
return true;
}
class ClearUserDataObserver extends IPackageDataObserver.Stub {
public void onRemoveCompleted(final String packageName, final boolean succeeded) {
final Message msg = mHandler.obtainMessage(CLEAR_USER_DATA);
msg.arg1 = succeeded?OP_SUCCESSFUL:OP_FAILED;
mHandler.sendMessage(msg);
}
}
class PkgSizeObserver extends IPackageStatsObserver.Stub {
public int idx;
public void onGetStatsCompleted(PackageStats pStats, boolean succeeded) {
Message msg = mHandler.obtainMessage(GET_PKG_SIZE);
Bundle data = new Bundle();
data.putParcelable(ATTR_PACKAGE_STATS, pStats);
msg.setData(data);
mHandler.sendMessage(msg);
}
}
class ClearCacheObserver extends IPackageDataObserver.Stub {
public void onRemoveCompleted(final String packageName, final boolean succeeded) {
final Message msg = mHandler.obtainMessage(CLEAR_CACHE);
msg.arg1 = succeeded?OP_SUCCESSFUL:OP_FAILED;
mHandler.sendMessage(msg);
}
}
private String getSizeStr(long size) {
if (size == SIZE_INVALID) {
return mInvalidSizeStr.toString();
}
return Formatter.formatFileSize(this, size);
}
private void setAppBtnState() {
boolean visible = false;
if(mCanUninstall) {
//app can clear user data
if((mAppInfo.flags & ApplicationInfo.FLAG_ALLOW_CLEAR_USER_DATA)
== ApplicationInfo.FLAG_ALLOW_CLEAR_USER_DATA) {
mAppButtonText = getText(R.string.clear_user_data_text);
mAppButtonState = AppButtonStates.CLEAR_DATA;
visible = true;
} else {
//hide button if diableClearUserData is set
visible = false;
mAppButtonState = AppButtonStates.NONE;
}
} else {
visible = true;
mAppButtonState = AppButtonStates.UNINSTALL;
mAppButtonText = getText(R.string.uninstall_text);
}
if(visible) {
mAppButton.setText(mAppButtonText);
mAppButton.setVisibility(View.VISIBLE);
} else {
mAppButton.setVisibility(View.GONE);
}
}
/** Called when the activity is first created. */
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
//get package manager
mPm = getPackageManager();
//get application's name from intent
Intent intent = getIntent();
final String packageName = intent.getStringExtra(ManageApplications.APP_PKG_NAME);
mComputingStr = getText(R.string.computing_size);
// Try retrieving package stats again
CharSequence totalSizeStr, appSizeStr, dataSizeStr;
totalSizeStr = appSizeStr = dataSizeStr = mComputingStr;
if(localLOGV) Log.i(TAG, "Have to compute package sizes");
mSizeObserver = new PkgSizeObserver();
mPm.getPackageSizeInfo(packageName, mSizeObserver);
try {
mAppInfo = mPm.getApplicationInfo(packageName,
PackageManager.GET_UNINSTALLED_PACKAGES);
} catch (NameNotFoundException e) {
Log.e(TAG, "Exception when retrieving package:"+packageName, e);
displayErrorDialog(R.string.app_not_found_dlg_text, true, true);
}
setContentView(R.layout.installed_app_details);
((ImageView)findViewById(R.id.app_icon)).setImageDrawable(mAppInfo.loadIcon(mPm));
//set application name TODO version
CharSequence appName = mAppInfo.loadLabel(mPm);
if(appName == null) {
appName = getString(_UNKNOWN_APP);
}
((TextView)findViewById(R.id.app_name)).setText(appName);
mAppSnippetSize = ((TextView)findViewById(R.id.app_size));
mAppSnippetSize.setText(totalSizeStr);
//TODO download str and download url
//set values on views
mTotalSize = (TextView)findViewById(R.id.total_size_text);
mTotalSize.setText(totalSizeStr);
mAppSize = (TextView)findViewById(R.id.application_size_text);
mAppSize.setText(appSizeStr);
mDataSize = (TextView)findViewById(R.id.data_size_text);
mDataSize.setText(dataSizeStr);
mAppButton = ((Button)findViewById(R.id.uninstall_button));
//determine if app is a system app
mCanUninstall = !isUninstallable();
if(localLOGV) Log.i(TAG, "Is systemPackage "+mCanUninstall);
setAppBtnState();
mManageSpaceButton = (Button)findViewById(R.id.manage_space_button);
if(mAppInfo.manageSpaceActivityName != null) {
mManageSpaceButton.setVisibility(View.VISIBLE);
mManageSpaceButton.setOnClickListener(this);
}
// Cache section
mCachePanel = findViewById(R.id.cache_panel);
mCacheSize = (TextView) findViewById(R.id.cache_size_text);
mCacheSize.setText(mComputingStr);
mClearCacheButton = (Button) findViewById(R.id.clear_cache_button);
mForceStopButton = (Button) findViewById(R.id.force_stop_button);
mForceStopButton.setOnClickListener(this);
//clear activities
mActivitiesButton = (Button)findViewById(R.id.clear_activities_button);
List<ComponentName> prefActList = new ArrayList<ComponentName>();
//intent list cannot be null. so pass empty list
List<IntentFilter> intentList = new ArrayList<IntentFilter>();
mPm.getPreferredActivities(intentList, prefActList, packageName);
if(localLOGV) Log.i(TAG, "Have "+prefActList.size()+" number of activities in prefered list");
TextView autoLaunchView = (TextView)findViewById(R.id.auto_launch);
if(prefActList.size() <= 0) {
//disable clear activities button
autoLaunchView.setText(R.string.auto_launch_disable_text);
mActivitiesButton.setEnabled(false);
} else {
autoLaunchView.setText(R.string.auto_launch_enable_text);
mActivitiesButton.setOnClickListener(this);
}
// security permissions section
LinearLayout permsView = (LinearLayout) findViewById(R.id.permissions_section);
AppSecurityPermissions asp = new AppSecurityPermissions(this, packageName);
if(asp.getPermissionCount() > 0) {
permsView.setVisibility(View.VISIBLE);
// Make the security sections header visible
LinearLayout securityList = (LinearLayout) permsView.findViewById(
R.id.security_settings_list);
securityList.addView(asp.getPermissionsView());
} else {
permsView.setVisibility(View.GONE);
}
}
private void displayErrorDialog(int msgId, final boolean finish, final boolean changed) {
//display confirmation dialog
new AlertDialog.Builder(this)
.setTitle(getString(R.string.app_not_found_dlg_title))
.setIcon(android.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
setIntentAndFinish(finish, changed);
}
}
)
.show();
}
private void setIntentAndFinish(boolean finish, boolean appChanged) {
if(localLOGV) Log.i(TAG, "appChanged="+appChanged);
Intent intent = new Intent();
intent.putExtra(ManageApplications.APP_CHG, appChanged);
setResult(ManageApplications.RESULT_OK, intent);
mAppButton.setEnabled(false);
if(finish) {
finish();
}
}
/*
* Private method to handle get size info notification from observer when
* the async operation from PackageManager is complete. The current user data
* info has to be refreshed in the manage applications screen as well as the current screen.
*/
private void refreshSizeInfo(Message msg) {
boolean changed = false;
PackageStats newPs = msg.getData().getParcelable(ATTR_PACKAGE_STATS);
long newTot = newPs.cacheSize+newPs.codeSize+newPs.dataSize;
if(mSizeInfo == null) {
mSizeInfo = newPs;
String str = getSizeStr(newTot);
mTotalSize.setText(str);
mAppSnippetSize.setText(str);
mAppSize.setText(getSizeStr(newPs.codeSize));
mDataSize.setText(getSizeStr(newPs.dataSize));
mCacheSize.setText(getSizeStr(newPs.cacheSize));
} else {
long oldTot = mSizeInfo.cacheSize+mSizeInfo.codeSize+mSizeInfo.dataSize;
if(newTot != oldTot) {
String str = getSizeStr(newTot);
mTotalSize.setText(str);
mAppSnippetSize.setText(str);
changed = true;
}
if(newPs.codeSize != mSizeInfo.codeSize) {
mAppSize.setText(getSizeStr(newPs.codeSize));
changed = true;
}
if(newPs.dataSize != mSizeInfo.dataSize) {
mDataSize.setText(getSizeStr(newPs.dataSize));
changed = true;
}
if(newPs.cacheSize != mSizeInfo.cacheSize) {
mCacheSize.setText(getSizeStr(newPs.cacheSize));
changed = true;
}
if(changed) {
mSizeInfo = newPs;
}
}
long data = mSizeInfo.dataSize;
// Disable button if data is 0
if(mAppButtonState != AppButtonStates.NONE){
mAppButton.setText(mAppButtonText);
if((mAppButtonState == AppButtonStates.CLEAR_DATA) && (data == 0)) {
mAppButton.setEnabled(false);
} else {
mAppButton.setEnabled(true);
mAppButton.setOnClickListener(this);
}
}
refreshCacheInfo(newPs.cacheSize);
}
private void refreshCacheInfo(long cacheSize) {
// Set cache info
mCacheSize.setText(getSizeStr(cacheSize));
if (cacheSize <= 0) {
mClearCacheButton.setEnabled(false);
} else {
mClearCacheButton.setOnClickListener(this);
}
}
/*
* Private method to handle clear message notification from observer when
* the async operation from PackageManager is complete
*/
private void processClearMsg(Message msg) {
int result = msg.arg1;
String packageName = mAppInfo.packageName;
if(result == OP_SUCCESSFUL) {
Log.i(TAG, "Cleared user data for system package:"+packageName);
mPm.getPackageSizeInfo(packageName, mSizeObserver);
} else {
mAppButton.setText(R.string.clear_user_data_text);
mAppButton.setEnabled(true);
}
}
/*
* Private method to initiate clearing user data when the user clicks the clear data
* button for a system package
*/
private void initiateClearUserDataForSysPkg() {
mAppButton.setEnabled(false);
//invoke uninstall or clear user data based on sysPackage
String packageName = mAppInfo.packageName;
Log.i(TAG, "Clearing user data for system package");
if(mClearDataObserver == null) {
mClearDataObserver = new ClearUserDataObserver();
}
ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
boolean res = am.clearApplicationUserData(packageName, mClearDataObserver);
if(!res) {
//doesnt initiate clear. some error. should not happen but just log error for now
Log.i(TAG, "Couldnt clear application user data for package:"+packageName);
displayErrorDialog(R.string.clear_data_failed, false, false);
} else {
mAppButton.setText(R.string.recompute_size);
}
}
/*
* Method implementing functionality of buttons clicked
* @see android.view.View.OnClickListener#onClick(android.view.View)
*/
public void onClick(View v) {
String packageName = mAppInfo.packageName;
if(v == mAppButton) {
if(mCanUninstall) {
//display confirmation dialog
new AlertDialog.Builder(this)
.setTitle(getString(R.string.clear_data_dlg_title))
.setIcon(android.R.drawable.ic_dialog_alert)
.setMessage(getString(R.string.clear_data_dlg_text))
.setPositiveButton(R.string.dlg_ok, this)
.setNegativeButton(R.string.dlg_cancel, this)
.show();
} else {
//create new intent to launch Uninstaller activity
Uri packageURI = Uri.parse("package:"+packageName);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
startActivity(uninstallIntent);
setIntentAndFinish(true, true);
}
} else if(v == mActivitiesButton) {
mPm.clearPackagePreferredActivities(packageName);
mActivitiesButton.setEnabled(false);
} else if(v == mManageSpaceButton) {
Intent intent = new Intent(Intent.ACTION_DEFAULT);
intent.setClassName(mAppInfo.packageName, mAppInfo.manageSpaceActivityName);
startActivityForResult(intent, -1);
} else if (v == mClearCacheButton) {
// Lazy initialization of observer
if (mClearCacheObserver == null) {
mClearCacheObserver = new ClearCacheObserver();
}
mPm.deleteApplicationCacheFiles(packageName, mClearCacheObserver);
} else if (v == mForceStopButton) {
ActivityManager am = (ActivityManager)getSystemService(
Context.ACTIVITY_SERVICE);
am.restartPackage(packageName);
}
}
public void onClick(DialogInterface dialog, int which) {
if(which == AlertDialog.BUTTON_POSITIVE) {
//invoke uninstall or clear user data based on sysPackage
initiateClearUserDataForSysPkg();
} else {
//cancel do nothing just retain existing screen
}
}
}
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