| /* |
| * Copyright (C) 2008 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.internal.app; |
| |
| import android.os.AsyncTask; |
| import com.android.internal.R; |
| import com.android.internal.content.PackageMonitor; |
| |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerNative; |
| import android.app.AppGlobals; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.LabeledIntent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.ResolveInfo; |
| import android.content.res.Resources; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.PatternMatcher; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.AdapterView; |
| import android.widget.BaseAdapter; |
| import android.widget.Button; |
| import android.widget.ImageView; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * This activity is displayed when the system attempts to start an Intent for |
| * which there is more than one matching activity, allowing the user to decide |
| * which to go to. It is not normally used directly by application developers. |
| */ |
| public class ResolverActivity extends AlertActivity implements AdapterView.OnItemClickListener { |
| private static final String TAG = "ResolverActivity"; |
| private static final boolean DEBUG = false; |
| |
| private int mLaunchedFromUid; |
| private ResolveListAdapter mAdapter; |
| private PackageManager mPm; |
| private boolean mAlwaysUseOption; |
| private boolean mShowExtended; |
| private ListView mListView; |
| private Button mAlwaysButton; |
| private Button mOnceButton; |
| private int mIconDpi; |
| private int mIconSize; |
| private int mMaxColumns; |
| private int mLastSelected = ListView.INVALID_POSITION; |
| |
| private boolean mRegistered; |
| private final PackageMonitor mPackageMonitor = new PackageMonitor() { |
| @Override public void onSomePackagesChanged() { |
| mAdapter.handlePackagesChanged(); |
| } |
| }; |
| |
| private Intent makeMyIntent() { |
| Intent intent = new Intent(getIntent()); |
| // The resolver activity is set to be hidden from recent tasks. |
| // we don't want this attribute to be propagated to the next activity |
| // being launched. Note that if the original Intent also had this |
| // flag set, we are now losing it. That should be a very rare case |
| // and we can live with this. |
| intent.setFlags(intent.getFlags()&~Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); |
| return intent; |
| } |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| onCreate(savedInstanceState, makeMyIntent(), |
| getResources().getText(com.android.internal.R.string.whichApplication), |
| null, null, true); |
| } |
| |
| protected void onCreate(Bundle savedInstanceState, Intent intent, |
| CharSequence title, Intent[] initialIntents, List<ResolveInfo> rList, |
| boolean alwaysUseOption) { |
| setTheme(R.style.Theme_DeviceDefault_Light_Dialog_Alert); |
| super.onCreate(savedInstanceState); |
| try { |
| mLaunchedFromUid = ActivityManagerNative.getDefault().getLaunchedFromUid( |
| getActivityToken()); |
| } catch (RemoteException e) { |
| mLaunchedFromUid = -1; |
| } |
| mPm = getPackageManager(); |
| mAlwaysUseOption = alwaysUseOption; |
| mMaxColumns = getResources().getInteger(R.integer.config_maxResolverActivityColumns); |
| intent.setComponent(null); |
| |
| AlertController.AlertParams ap = mAlertParams; |
| |
| ap.mTitle = title; |
| |
| mPackageMonitor.register(this, getMainLooper(), false); |
| mRegistered = true; |
| |
| final ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE); |
| mIconDpi = am.getLauncherLargeIconDensity(); |
| mIconSize = am.getLauncherLargeIconSize(); |
| |
| mAdapter = new ResolveListAdapter(this, intent, initialIntents, rList, |
| mLaunchedFromUid); |
| int count = mAdapter.getCount(); |
| if (mLaunchedFromUid < 0 || UserHandle.isIsolated(mLaunchedFromUid)) { |
| // Gulp! |
| finish(); |
| return; |
| } else if (count > 1) { |
| ap.mView = getLayoutInflater().inflate(R.layout.resolver_list, null); |
| mListView = (ListView) ap.mView.findViewById(R.id.resolver_list); |
| mListView.setAdapter(mAdapter); |
| mListView.setOnItemClickListener(this); |
| mListView.setOnItemLongClickListener(new ItemLongClickListener()); |
| |
| if (alwaysUseOption) { |
| mListView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); |
| } |
| } else if (count == 1) { |
| startActivity(mAdapter.intentForPosition(0)); |
| mPackageMonitor.unregister(); |
| mRegistered = false; |
| finish(); |
| return; |
| } else { |
| ap.mMessage = getResources().getText(R.string.noApplications); |
| } |
| |
| setupAlert(); |
| |
| if (alwaysUseOption) { |
| final ViewGroup buttonLayout = (ViewGroup) findViewById(R.id.button_bar); |
| if (buttonLayout != null) { |
| buttonLayout.setVisibility(View.VISIBLE); |
| mAlwaysButton = (Button) buttonLayout.findViewById(R.id.button_always); |
| mOnceButton = (Button) buttonLayout.findViewById(R.id.button_once); |
| } else { |
| mAlwaysUseOption = false; |
| } |
| } |
| final int initialHighlight = mAdapter.getInitialHighlight(); |
| if (initialHighlight >= 0) { |
| mListView.setItemChecked(initialHighlight, true); |
| onItemClick(null, null, initialHighlight, 0); // Other entries are not used |
| } |
| } |
| |
| Drawable getIcon(Resources res, int resId) { |
| Drawable result; |
| try { |
| result = res.getDrawableForDensity(resId, mIconDpi); |
| } catch (Resources.NotFoundException e) { |
| result = null; |
| } |
| |
| return result; |
| } |
| |
| Drawable loadIconForResolveInfo(ResolveInfo ri) { |
| Drawable dr; |
| try { |
| if (ri.resolvePackageName != null && ri.icon != 0) { |
| dr = getIcon(mPm.getResourcesForApplication(ri.resolvePackageName), ri.icon); |
| if (dr != null) { |
| return dr; |
| } |
| } |
| final int iconRes = ri.getIconResource(); |
| if (iconRes != 0) { |
| dr = getIcon(mPm.getResourcesForApplication(ri.activityInfo.packageName), iconRes); |
| if (dr != null) { |
| return dr; |
| } |
| } |
| } catch (NameNotFoundException e) { |
| Log.e(TAG, "Couldn't find resources for package", e); |
| } |
| return ri.loadIcon(mPm); |
| } |
| |
| @Override |
| protected void onRestart() { |
| super.onRestart(); |
| if (!mRegistered) { |
| mPackageMonitor.register(this, getMainLooper(), false); |
| mRegistered = true; |
| } |
| mAdapter.handlePackagesChanged(); |
| } |
| |
| @Override |
| protected void onStop() { |
| super.onStop(); |
| if (mRegistered) { |
| mPackageMonitor.unregister(); |
| mRegistered = false; |
| } |
| if ((getIntent().getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { |
| // This resolver is in the unusual situation where it has been |
| // launched at the top of a new task. We don't let it be added |
| // to the recent tasks shown to the user, and we need to make sure |
| // that each time we are launched we get the correct launching |
| // uid (not re-using the same resolver from an old launching uid), |
| // so we will now finish ourself since being no longer visible, |
| // the user probably can't get back to us. |
| if (!isChangingConfigurations()) { |
| finish(); |
| } |
| } |
| } |
| |
| @Override |
| protected void onRestoreInstanceState(Bundle savedInstanceState) { |
| super.onRestoreInstanceState(savedInstanceState); |
| if (mAlwaysUseOption) { |
| final int checkedPos = mListView.getCheckedItemPosition(); |
| final boolean enabled = checkedPos != ListView.INVALID_POSITION; |
| mLastSelected = checkedPos; |
| mAlwaysButton.setEnabled(enabled); |
| mOnceButton.setEnabled(enabled); |
| if (enabled) { |
| mListView.setSelection(checkedPos); |
| } |
| } |
| } |
| |
| @Override |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| final int checkedPos = mListView.getCheckedItemPosition(); |
| final boolean hasValidSelection = checkedPos != ListView.INVALID_POSITION; |
| if (mAlwaysUseOption && (!hasValidSelection || mLastSelected != checkedPos)) { |
| mAlwaysButton.setEnabled(hasValidSelection); |
| mOnceButton.setEnabled(hasValidSelection); |
| if (hasValidSelection) { |
| mListView.smoothScrollToPosition(checkedPos); |
| } |
| mLastSelected = checkedPos; |
| } else { |
| startSelected(position, false); |
| } |
| } |
| |
| public void onButtonClick(View v) { |
| final int id = v.getId(); |
| startSelected(mListView.getCheckedItemPosition(), id == R.id.button_always); |
| dismiss(); |
| } |
| |
| void startSelected(int which, boolean always) { |
| ResolveInfo ri = mAdapter.resolveInfoForPosition(which); |
| Intent intent = mAdapter.intentForPosition(which); |
| onIntentSelected(ri, intent, always); |
| finish(); |
| } |
| |
| protected void onIntentSelected(ResolveInfo ri, Intent intent, boolean alwaysCheck) { |
| if (mAlwaysUseOption) { |
| // Build a reasonable intent filter, based on what matched. |
| IntentFilter filter = new IntentFilter(); |
| |
| if (intent.getAction() != null) { |
| filter.addAction(intent.getAction()); |
| } |
| Set<String> categories = intent.getCategories(); |
| if (categories != null) { |
| for (String cat : categories) { |
| filter.addCategory(cat); |
| } |
| } |
| filter.addCategory(Intent.CATEGORY_DEFAULT); |
| |
| int cat = ri.match&IntentFilter.MATCH_CATEGORY_MASK; |
| Uri data = intent.getData(); |
| if (cat == IntentFilter.MATCH_CATEGORY_TYPE) { |
| String mimeType = intent.resolveType(this); |
| if (mimeType != null) { |
| try { |
| filter.addDataType(mimeType); |
| } catch (IntentFilter.MalformedMimeTypeException e) { |
| Log.w("ResolverActivity", e); |
| filter = null; |
| } |
| } |
| } |
| if (data != null && data.getScheme() != null) { |
| // We need the data specification if there was no type, |
| // OR if the scheme is not one of our magical "file:" |
| // or "content:" schemes (see IntentFilter for the reason). |
| if (cat != IntentFilter.MATCH_CATEGORY_TYPE |
| || (!"file".equals(data.getScheme()) |
| && !"content".equals(data.getScheme()))) { |
| filter.addDataScheme(data.getScheme()); |
| |
| // Look through the resolved filter to determine which part |
| // of it matched the original Intent. |
| Iterator<PatternMatcher> pIt = ri.filter.schemeSpecificPartsIterator(); |
| if (pIt != null) { |
| String ssp = data.getSchemeSpecificPart(); |
| while (ssp != null && pIt.hasNext()) { |
| PatternMatcher p = pIt.next(); |
| if (p.match(ssp)) { |
| filter.addDataSchemeSpecificPart(p.getPath(), p.getType()); |
| break; |
| } |
| } |
| } |
| Iterator<IntentFilter.AuthorityEntry> aIt = ri.filter.authoritiesIterator(); |
| if (aIt != null) { |
| while (aIt.hasNext()) { |
| IntentFilter.AuthorityEntry a = aIt.next(); |
| if (a.match(data) >= 0) { |
| int port = a.getPort(); |
| filter.addDataAuthority(a.getHost(), |
| port >= 0 ? Integer.toString(port) : null); |
| break; |
| } |
| } |
| } |
| pIt = ri.filter.pathsIterator(); |
| if (pIt != null) { |
| String path = data.getPath(); |
| while (path != null && pIt.hasNext()) { |
| PatternMatcher p = pIt.next(); |
| if (p.match(path)) { |
| filter.addDataPath(p.getPath(), p.getType()); |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| if (filter != null) { |
| final int N = mAdapter.mList.size(); |
| ComponentName[] set = new ComponentName[N]; |
| int bestMatch = 0; |
| for (int i=0; i<N; i++) { |
| ResolveInfo r = mAdapter.mList.get(i).ri; |
| set[i] = new ComponentName(r.activityInfo.packageName, |
| r.activityInfo.name); |
| if (r.match > bestMatch) bestMatch = r.match; |
| } |
| if (alwaysCheck) { |
| getPackageManager().addPreferredActivity(filter, bestMatch, set, |
| intent.getComponent()); |
| } else { |
| try { |
| AppGlobals.getPackageManager().setLastChosenActivity(intent, |
| intent.resolveTypeIfNeeded(getContentResolver()), |
| PackageManager.MATCH_DEFAULT_ONLY, |
| filter, bestMatch, intent.getComponent()); |
| } catch (RemoteException re) { |
| Log.d(TAG, "Error calling setLastChosenActivity\n" + re); |
| } |
| } |
| } |
| } |
| |
| if (intent != null) { |
| startActivity(intent); |
| } |
| } |
| |
| void showAppDetails(ResolveInfo ri) { |
| Intent in = new Intent().setAction("android.settings.APPLICATION_DETAILS_SETTINGS") |
| .setData(Uri.fromParts("package", ri.activityInfo.packageName, null)) |
| .addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| startActivity(in); |
| } |
| |
| private final class DisplayResolveInfo { |
| ResolveInfo ri; |
| CharSequence displayLabel; |
| Drawable displayIcon; |
| CharSequence extendedInfo; |
| Intent origIntent; |
| |
| DisplayResolveInfo(ResolveInfo pri, CharSequence pLabel, |
| CharSequence pInfo, Intent pOrigIntent) { |
| ri = pri; |
| displayLabel = pLabel; |
| extendedInfo = pInfo; |
| origIntent = pOrigIntent; |
| } |
| } |
| |
| private final class ResolveListAdapter extends BaseAdapter { |
| private final Intent[] mInitialIntents; |
| private final List<ResolveInfo> mBaseResolveList; |
| private ResolveInfo mLastChosen; |
| private final Intent mIntent; |
| private final int mLaunchedFromUid; |
| private final LayoutInflater mInflater; |
| |
| private List<DisplayResolveInfo> mList; |
| private int mInitialHighlight = -1; |
| |
| public ResolveListAdapter(Context context, Intent intent, |
| Intent[] initialIntents, List<ResolveInfo> rList, int launchedFromUid) { |
| mIntent = new Intent(intent); |
| mIntent.setComponent(null); |
| mInitialIntents = initialIntents; |
| mBaseResolveList = rList; |
| mLaunchedFromUid = launchedFromUid; |
| mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| mList = new ArrayList<DisplayResolveInfo>(); |
| rebuildList(); |
| } |
| |
| public void handlePackagesChanged() { |
| final int oldItemCount = getCount(); |
| rebuildList(); |
| notifyDataSetChanged(); |
| final int newItemCount = getCount(); |
| if (newItemCount == 0) { |
| // We no longer have any items... just finish the activity. |
| finish(); |
| } |
| } |
| |
| public int getInitialHighlight() { |
| return mInitialHighlight; |
| } |
| |
| private void rebuildList() { |
| List<ResolveInfo> currentResolveList; |
| |
| try { |
| mLastChosen = AppGlobals.getPackageManager().getLastChosenActivity( |
| mIntent, mIntent.resolveTypeIfNeeded(getContentResolver()), |
| PackageManager.MATCH_DEFAULT_ONLY); |
| } catch (RemoteException re) { |
| Log.d(TAG, "Error calling setLastChosenActivity\n" + re); |
| } |
| |
| mList.clear(); |
| if (mBaseResolveList != null) { |
| currentResolveList = mBaseResolveList; |
| } else { |
| currentResolveList = mPm.queryIntentActivities( |
| mIntent, PackageManager.MATCH_DEFAULT_ONLY |
| | (mAlwaysUseOption ? PackageManager.GET_RESOLVED_FILTER : 0)); |
| // Filter out any activities that the launched uid does not |
| // have permission for. We don't do this when we have an explicit |
| // list of resolved activities, because that only happens when |
| // we are being subclassed, so we can safely launch whatever |
| // they gave us. |
| if (currentResolveList != null) { |
| for (int i=currentResolveList.size()-1; i >= 0; i--) { |
| ActivityInfo ai = currentResolveList.get(i).activityInfo; |
| int granted = ActivityManager.checkComponentPermission( |
| ai.permission, mLaunchedFromUid, |
| ai.applicationInfo.uid, ai.exported); |
| if (granted != PackageManager.PERMISSION_GRANTED) { |
| // Access not allowed! |
| currentResolveList.remove(i); |
| } |
| } |
| } |
| } |
| int N; |
| if ((currentResolveList != null) && ((N = currentResolveList.size()) > 0)) { |
| // Only display the first matches that are either of equal |
| // priority or have asked to be default options. |
| ResolveInfo r0 = currentResolveList.get(0); |
| for (int i=1; i<N; i++) { |
| ResolveInfo ri = currentResolveList.get(i); |
| if (DEBUG) Log.v( |
| "ResolveListActivity", |
| r0.activityInfo.name + "=" + |
| r0.priority + "/" + r0.isDefault + " vs " + |
| ri.activityInfo.name + "=" + |
| ri.priority + "/" + ri.isDefault); |
| if (r0.priority != ri.priority || |
| r0.isDefault != ri.isDefault) { |
| while (i < N) { |
| currentResolveList.remove(i); |
| N--; |
| } |
| } |
| } |
| if (N > 1) { |
| ResolveInfo.DisplayNameComparator rComparator = |
| new ResolveInfo.DisplayNameComparator(mPm); |
| Collections.sort(currentResolveList, rComparator); |
| } |
| // First put the initial items at the top. |
| if (mInitialIntents != null) { |
| for (int i=0; i<mInitialIntents.length; i++) { |
| Intent ii = mInitialIntents[i]; |
| if (ii == null) { |
| continue; |
| } |
| ActivityInfo ai = ii.resolveActivityInfo( |
| getPackageManager(), 0); |
| if (ai == null) { |
| Log.w("ResolverActivity", "No activity found for " |
| + ii); |
| continue; |
| } |
| ResolveInfo ri = new ResolveInfo(); |
| ri.activityInfo = ai; |
| if (ii instanceof LabeledIntent) { |
| LabeledIntent li = (LabeledIntent)ii; |
| ri.resolvePackageName = li.getSourcePackage(); |
| ri.labelRes = li.getLabelResource(); |
| ri.nonLocalizedLabel = li.getNonLocalizedLabel(); |
| ri.icon = li.getIconResource(); |
| } |
| mList.add(new DisplayResolveInfo(ri, |
| ri.loadLabel(getPackageManager()), null, ii)); |
| } |
| } |
| |
| // Check for applications with same name and use application name or |
| // package name if necessary |
| r0 = currentResolveList.get(0); |
| int start = 0; |
| CharSequence r0Label = r0.loadLabel(mPm); |
| mShowExtended = false; |
| for (int i = 1; i < N; i++) { |
| if (r0Label == null) { |
| r0Label = r0.activityInfo.packageName; |
| } |
| ResolveInfo ri = currentResolveList.get(i); |
| CharSequence riLabel = ri.loadLabel(mPm); |
| if (riLabel == null) { |
| riLabel = ri.activityInfo.packageName; |
| } |
| if (riLabel.equals(r0Label)) { |
| continue; |
| } |
| processGroup(currentResolveList, start, (i-1), r0, r0Label); |
| r0 = ri; |
| r0Label = riLabel; |
| start = i; |
| } |
| // Process last group |
| processGroup(currentResolveList, start, (N-1), r0, r0Label); |
| } |
| } |
| |
| private void processGroup(List<ResolveInfo> rList, int start, int end, ResolveInfo ro, |
| CharSequence roLabel) { |
| // Process labels from start to i |
| int num = end - start+1; |
| if (num == 1) { |
| if (mLastChosen != null |
| && mLastChosen.activityInfo.packageName.equals( |
| ro.activityInfo.packageName) |
| && mLastChosen.activityInfo.name.equals(ro.activityInfo.name)) { |
| mInitialHighlight = mList.size(); |
| } |
| // No duplicate labels. Use label for entry at start |
| mList.add(new DisplayResolveInfo(ro, roLabel, null, null)); |
| } else { |
| mShowExtended = true; |
| boolean usePkg = false; |
| CharSequence startApp = ro.activityInfo.applicationInfo.loadLabel(mPm); |
| if (startApp == null) { |
| usePkg = true; |
| } |
| if (!usePkg) { |
| // Use HashSet to track duplicates |
| HashSet<CharSequence> duplicates = |
| new HashSet<CharSequence>(); |
| duplicates.add(startApp); |
| for (int j = start+1; j <= end ; j++) { |
| ResolveInfo jRi = rList.get(j); |
| CharSequence jApp = jRi.activityInfo.applicationInfo.loadLabel(mPm); |
| if ( (jApp == null) || (duplicates.contains(jApp))) { |
| usePkg = true; |
| break; |
| } else { |
| duplicates.add(jApp); |
| } |
| } |
| // Clear HashSet for later use |
| duplicates.clear(); |
| } |
| for (int k = start; k <= end; k++) { |
| ResolveInfo add = rList.get(k); |
| if (mLastChosen != null |
| && mLastChosen.activityInfo.packageName.equals( |
| add.activityInfo.packageName) |
| && mLastChosen.activityInfo.name.equals(add.activityInfo.name)) { |
| mInitialHighlight = mList.size(); |
| } |
| if (usePkg) { |
| // Use application name for all entries from start to end-1 |
| mList.add(new DisplayResolveInfo(add, roLabel, |
| add.activityInfo.packageName, null)); |
| } else { |
| // Use package name for all entries from start to end-1 |
| mList.add(new DisplayResolveInfo(add, roLabel, |
| add.activityInfo.applicationInfo.loadLabel(mPm), null)); |
| } |
| } |
| } |
| } |
| |
| public ResolveInfo resolveInfoForPosition(int position) { |
| return mList.get(position).ri; |
| } |
| |
| public Intent intentForPosition(int position) { |
| DisplayResolveInfo dri = mList.get(position); |
| |
| Intent intent = new Intent(dri.origIntent != null |
| ? dri.origIntent : mIntent); |
| intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT |
| |Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP); |
| ActivityInfo ai = dri.ri.activityInfo; |
| intent.setComponent(new ComponentName( |
| ai.applicationInfo.packageName, ai.name)); |
| return intent; |
| } |
| |
| public int getCount() { |
| return mList.size(); |
| } |
| |
| public Object getItem(int position) { |
| return mList.get(position); |
| } |
| |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| public View getView(int position, View convertView, ViewGroup parent) { |
| View view; |
| if (convertView == null) { |
| view = mInflater.inflate( |
| com.android.internal.R.layout.resolve_list_item, parent, false); |
| |
| final ViewHolder holder = new ViewHolder(view); |
| view.setTag(holder); |
| |
| // Fix the icon size even if we have different sized resources |
| ViewGroup.LayoutParams lp = holder.icon.getLayoutParams(); |
| lp.width = lp.height = mIconSize; |
| } else { |
| view = convertView; |
| } |
| bindView(view, mList.get(position)); |
| return view; |
| } |
| |
| private final void bindView(View view, DisplayResolveInfo info) { |
| final ViewHolder holder = (ViewHolder) view.getTag(); |
| holder.text.setText(info.displayLabel); |
| if (mShowExtended) { |
| holder.text2.setVisibility(View.VISIBLE); |
| holder.text2.setText(info.extendedInfo); |
| } else { |
| holder.text2.setVisibility(View.GONE); |
| } |
| if (info.displayIcon == null) { |
| new LoadIconTask().execute(info); |
| } |
| holder.icon.setImageDrawable(info.displayIcon); |
| } |
| } |
| |
| static class ViewHolder { |
| public TextView text; |
| public TextView text2; |
| public ImageView icon; |
| |
| public ViewHolder(View view) { |
| text = (TextView) view.findViewById(com.android.internal.R.id.text1); |
| text2 = (TextView) view.findViewById(com.android.internal.R.id.text2); |
| icon = (ImageView) view.findViewById(R.id.icon); |
| } |
| } |
| |
| class ItemLongClickListener implements AdapterView.OnItemLongClickListener { |
| |
| @Override |
| public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { |
| ResolveInfo ri = mAdapter.resolveInfoForPosition(position); |
| showAppDetails(ri); |
| return true; |
| } |
| |
| } |
| |
| class LoadIconTask extends AsyncTask<DisplayResolveInfo, Void, DisplayResolveInfo> { |
| @Override |
| protected DisplayResolveInfo doInBackground(DisplayResolveInfo... params) { |
| final DisplayResolveInfo info = params[0]; |
| if (info.displayIcon == null) { |
| info.displayIcon = loadIconForResolveInfo(info.ri); |
| } |
| return info; |
| } |
| |
| @Override |
| protected void onPostExecute(DisplayResolveInfo info) { |
| mAdapter.notifyDataSetChanged(); |
| } |
| } |
| } |
| |
