Refresh apps when they become (un)available. (347c9a05) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/ManageApplications.java

+65 −56

Original line number	Diff line number	Diff line
		@@ -81,22 +81,26 @@ import java.util.concurrent.CountDownLatch;
		* options to uninstall/delete user data for system applications. This activity
		* can be launched through Settings or via the ACTION_MANAGE_PACKAGE_STORAGE
		* intent.
		*
		* Initially a compute in progress message is displayed while the application retrieves
		* the list of application information from the PackageManager. The size information
		* for each package is refreshed to the screen. The resource (app description and
		* icon) information for each package is not available yet, so some default values for size
		* icon and descriptions are used initially. Later the resource information for each
		* application is retrieved and dynamically updated on the screen.
		*
		* A Broadcast receiver registers for package additions or deletions when the activity is
		* in focus. If the user installs or deletes packages when the activity has focus, the receiver
		* gets notified and proceeds to add/delete these packages from the list on the screen.
		* This is an unlikely scenario but could happen. The entire list gets created every time
		* the activity's onStart gets invoked. This is to avoid having the receiver for the entire
		* life cycle of the application.
		*
		* The applications can be sorted either alphabetically or
		* based on size (descending). If this activity gets launched under low memory
		* situations(A low memory notification dispatches intent
		* situations (a low memory notification dispatches intent
		* ACTION_MANAGE_PACKAGE_STORAGE) the list is sorted per size.
		*
		* If the user selects an application, extended info (like size, uninstall/clear data options,
		* permissions info etc.,) is displayed via the InstalledAppDetails activity.
		*/
		@@ -173,7 +177,7 @@ public class ManageApplications extends TabActivity implements
		private PackageIntentReceiver mReceiver;
		// atomic variable used to track if computing pkg sizes is in progress. should be volatile?

		private boolean mComputeSizes = false;
		private boolean mComputeSizesFinished = false;
		// default icon thats used when displaying applications initially before resource info is
		// retrieved
		private static Drawable mDefaultAppIcon;
		@@ -212,7 +216,7 @@ public class ManageApplications extends TabActivity implements
		private AppInfoCache mCache = new AppInfoCache();

		// Boolean variables indicating state
		private boolean mLoadLabels = false;
		private boolean mLoadLabelsFinished = false;
		private boolean mSizesFirst = false;
		// ListView used to display list
		private ListView mListView;
		@@ -224,30 +228,35 @@ public class ManageApplications extends TabActivity implements
		private boolean mSetListViewLater = true;

		/*
		* Handler class to handle messages for various operations
		* Handler class to handle messages for various operations.
		* Most of the operations that effect Application related data
		* are posted as messages to the handler to avoid synchronization
		* when accessing these structures.
		*
		* When the size retrieval gets kicked off for the first time, a COMPUTE_PKG_SIZE_START
		* message is posted to the handler which invokes the getSizeInfo for the pkg at index 0
		* message is posted to the handler which invokes the getSizeInfo for the pkg at index 0.
		*
		* When the PackageManager's asynchronous call back through
		* PkgSizeObserver.onGetStatsCompleted gets invoked, the application resources like
		* label, description, icon etc., is loaded in the same thread and these values are
		* label, description, icon etc., are loaded in the same thread and these values are
		* set on the observer. The observer then posts a COMPUTE_PKG_SIZE_DONE message
		* to the handler. This information is updated on the AppInfoAdapter associated with
		* the list view of this activity and size info retrieval is initiated for the next package as
		* indicated by mComputeIndex
		* indicated by mComputeIndex.
		*
		* When a package gets added while the activity has focus, the PkgSizeObserver posts
		* ADD_PKG_START message to the handler. If the computation is not in progress, the size
		* is retrieved for the newly added package through the observer object and the newly
		* installed app info is updated on the screen. If the computation is still in progress
		* the package is added to an internal structure and action deferred till the computation
		* is done for all the packages.
		*
		* When a package gets deleted, REMOVE_PKG is posted to the handler
		* if computation is not in progress (as indicated by
		* mDoneIniting), the package is deleted from the displayed list of apps. If computation is
		* still in progress the package is added to an internal structure and action deferred till
		* the computation is done for all packages.
		*
		* When the sizes of all packages is computed, the newly
		* added or removed packages are processed in order.
		* If the user changes the order in which these applications are viewed by hitting the
		@@ -293,7 +302,7 @@ public class ManageApplications extends TabActivity implements
		mAppInfoAdapter.bulkUpdateSizes(pkgs, sizes, formatted);
		break;
		case COMPUTE_END:
		mComputeSizes = true;
		mComputeSizesFinished = true;
		mFirst = true;
		mHandler.sendEmptyMessage(NEXT_LOAD_STEP);
		break;
		@@ -303,7 +312,7 @@ public class ManageApplications extends TabActivity implements
		Log.w(TAG, "Ignoring message:REMOVE_PKG for null pkgName");
		break;
		}
		if (!mComputeSizes) {
		if (!mComputeSizesFinished) {
		Boolean currB = mAddRemoveMap.get(pkgName);
		if (currB == null \|\| (currB.equals(Boolean.TRUE))) {
		mAddRemoveMap.put(pkgName, Boolean.FALSE);
		@@ -343,7 +352,7 @@ public class ManageApplications extends TabActivity implements
		Log.w(TAG, "Ignoring message:ADD_PKG_START for null pkgName");
		break;
		}
		if (!mComputeSizes \|\| !mLoadLabels) {
		if (!mComputeSizesFinished \|\| !mLoadLabelsFinished) {
		Boolean currB = mAddRemoveMap.get(pkgName);
		if (currB == null \|\| (currB.equals(Boolean.FALSE))) {
		mAddRemoveMap.put(pkgName, Boolean.TRUE);
		@@ -388,7 +397,7 @@ public class ManageApplications extends TabActivity implements
		}
		break;
		case REFRESH_DONE:
		mLoadLabels = true;
		mLoadLabelsFinished = true;
		mHandler.sendEmptyMessage(NEXT_LOAD_STEP);
		break;
		case NEXT_LOAD_STEP:
		@@ -398,7 +407,7 @@ public class ManageApplications extends TabActivity implements
		mSetListViewLater = false;
		mFirst = true;
		}
		if (mComputeSizes && mLoadLabels) {
		if (mComputeSizesFinished && mLoadLabelsFinished) {
		doneLoadingData();
		// Check for added/removed packages
		Set<String> keys = mAddRemoveMap.keySet();
		@@ -412,7 +421,7 @@ public class ManageApplications extends TabActivity implements
		}
		}
		mAddRemoveMap.clear();
		} else if (!mComputeSizes && !mLoadLabels) {
		} else if (!mComputeSizesFinished && !mLoadLabelsFinished) {
		// Either load the package labels or initiate get size info
		if (mSizesFirst) {
		initComputeSizes();
		@@ -425,9 +434,9 @@ public class ManageApplications extends TabActivity implements
		initListView();
		mSetListViewLater = false;
		}
		if (!mComputeSizes) {
		if (!mComputeSizesFinished) {
		initComputeSizes();
		} else if (!mLoadLabels) {
		} else if (!mLoadLabelsFinished) {
		initResourceThread();
		}
		}
		@@ -762,8 +771,8 @@ public class ManageApplications extends TabActivity implements
		// Some initialization code used when kicking off the size computation
		private void initAppList(List<ApplicationInfo> appList, int filterOption) {
		setProgressBarIndeterminateVisibility(true);
		mComputeSizes = false;
		mLoadLabels = false;
		mComputeSizesFinished = false;
		mLoadLabelsFinished = false;
		// Initialize lists
		mAddRemoveMap = new TreeMap<String, Boolean>();
		mAppInfoAdapter.initMapFromList(appList, filterOption);
		@@ -791,7 +800,7 @@ public class ManageApplications extends TabActivity implements
		if ((appList != null) && (appList.size()) > 0) {
		mSizeComputor = new TaskRunner(appList);
		} else {
		mComputeSizes = true;
		mComputeSizesFinished = true;
		}
		}

		@@ -1107,7 +1116,7 @@ public class ManageApplications extends TabActivity implements
		Log.w(TAG, "Invalid view position:"+position+", actual size is:"+mAppLocalList.size());
		return null;
		}
		// A ViewHolder keeps references to children views to avoid unneccessary calls
		// A ViewHolder keeps references to children views to avoid unnecessary calls
		// to findViewById() on each row.
		AppViewHolder holder;

		@@ -1563,8 +1572,6 @@ public class ManageApplications extends TabActivity implements
		}
		@Override
		public void onReceive(Context context, Intent intent) {
		// technically we dont have to invoke handler since onReceive is invoked on
		// the main thread but doing it here for better clarity
		String actionStr = intent.getAction();
		if (Intent.ACTION_PACKAGE_ADDED.equals(actionStr) \|\|
		Intent.ACTION_PACKAGE_REMOVED.equals(actionStr)) {
		@@ -1573,24 +1580,26 @@ public class ManageApplications extends TabActivity implements
		updatePackageList(actionStr, pkgName);
		} else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(actionStr) \|\|
		Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(actionStr)) {
		boolean available = Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(actionStr);
		// When applications become available or unavailable (perhaps because
		// the SD card was inserted or ejected) we need to refresh the
		// AppInfo with new label, icon and size information as appropriate
		// given the newfound (un)availability of the application.
		// A simple way to do that is to treat the refresh as a package
		// removal followed by a package addition.
		String pkgList[] = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
		if (pkgList == null \|\| pkgList.length == 0) {
		// Ignore
		return;
		}
		String msg = available ? Intent.ACTION_PACKAGE_ADDED :
		Intent.ACTION_PACKAGE_REMOVED;
		for (String pkgName : pkgList) {
		updatePackageList(msg, pkgName);
		updatePackageList(Intent.ACTION_PACKAGE_REMOVED, pkgName);
		updatePackageList(Intent.ACTION_PACKAGE_ADDED, pkgName);
		}
		}
		}
		}

		private void updatePackageList(String actionStr, String pkgName) {
		// technically we dont have to invoke handler since onReceive is invoked on
		// the main thread but doing it here for better clarity
		if (Intent.ACTION_PACKAGE_ADDED.equalsIgnoreCase(actionStr)) {
		Bundle data = new Bundle();
		data.putString(ATTR_PKG_NAME, pkgName);
		@@ -1640,7 +1649,7 @@ public class ManageApplications extends TabActivity implements
		mReceiver = new PackageIntentReceiver();
		mObserver = new PkgSizeObserver();
		// Create adapter and list view here
		List<ApplicationInfo> appList = getInstalledApps(mSortOrder);
		List<ApplicationInfo> appList = getInstalledApps(FILTER_APPS_ALL);
		mAppInfoAdapter = new AppInfoAdapter(this, appList);
		ListView lv = (ListView) mRootView.findViewById(android.R.id.list);
		lv.setOnItemClickListener(this);
		@@ -1776,7 +1785,7 @@ public class ManageApplications extends TabActivity implements
		err = true;
		break;
		}
		// Buffer length cannot be great then max.
		// Buffer length cannot be greater than max.
		fis.read(byteBuff, 0, buffLen);
		String buffStr = new String(byteBuff);
		if (DEBUG_CACHE) {