Introduce 'Home' settings
Bug 9958444
Change-Id: I868f5b7aa6ae9273b725cb96e80821a82569e7e0
diff --git a/src/com/android/settings/HomeSettings.java b/src/com/android/settings/HomeSettings.java
new file mode 100644
index 0000000..6d937fd
--- /dev/null
+++ b/src/com/android/settings/HomeSettings.java
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2013 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 java.util.ArrayList;
+
+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.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.graphics.ColorFilter;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.preference.Preference;
+import android.preference.PreferenceGroup;
+import android.util.Log;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.ImageView;
+import android.widget.RadioButton;
+
+public class HomeSettings extends SettingsPreferenceFragment {
+ static final String TAG = "HomeSettings";
+
+ static final int REQUESTING_UNINSTALL = 10;
+
+ public static final String CURRENT_HOME = "current_home";
+
+ PreferenceGroup mPrefGroup;
+
+ PackageManager mPm;
+ ComponentName[] mHomeComponentSet;
+ ArrayList<HomeAppPreference> mPrefs;
+ HomeAppPreference mCurrentHome = null;
+ final IntentFilter mHomeFilter;
+
+ public HomeSettings() {
+ mHomeFilter = new IntentFilter(Intent.ACTION_MAIN);
+ mHomeFilter.addCategory(Intent.CATEGORY_HOME);
+ mHomeFilter.addCategory(Intent.CATEGORY_DEFAULT);
+ }
+
+ OnClickListener mHomeClickListener = new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ int index = (Integer)v.getTag();
+ HomeAppPreference pref = mPrefs.get(index);
+ if (!pref.isChecked) {
+ makeCurrentHome(pref);
+ }
+ }
+ };
+
+ OnClickListener mDeleteClickListener = new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ int index = (Integer)v.getTag();
+ uninstallApp(mPrefs.get(index));
+ }
+ };
+
+ void makeCurrentHome(HomeAppPreference newHome) {
+ if (mCurrentHome != null) {
+ mCurrentHome.setChecked(false);
+ }
+ newHome.setChecked(true);
+ mCurrentHome = newHome;
+
+ mPm.replacePreferredActivity(mHomeFilter, IntentFilter.MATCH_CATEGORY_EMPTY,
+ mHomeComponentSet, newHome.activityName);
+ }
+
+ void uninstallApp(HomeAppPreference pref) {
+ // Uninstallation is done by asking the OS to do it
+ Uri packageURI = Uri.parse("package:" + pref.activityName.getPackageName());
+ Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI);
+ uninstallIntent.putExtra(Intent.EXTRA_UNINSTALL_ALL_USERS, false);
+ int requestCode = REQUESTING_UNINSTALL + (pref.isChecked ? 1 : 0);
+ startActivityForResult(uninstallIntent, requestCode);
+ }
+
+ @Override
+ public void onActivityResult(int requestCode, int resultCode, Intent data) {
+ super.onActivityResult(requestCode, resultCode, data);
+
+ // Rebuild the list now that we might have nuked something
+ buildHomeActivitiesList();
+
+ // if the previous home app is now gone, fall back to the system one
+ if (requestCode > REQUESTING_UNINSTALL) {
+ // if mCurrentHome has gone null, it means we didn't find the previously-
+ // default home app when rebuilding the list, i.e. it was the one we
+ // just uninstalled. When that happens we make the system-bundled
+ // home app the active default.
+ if (mCurrentHome == null) {
+ for (int i = 0; i < mPrefs.size(); i++) {
+ HomeAppPreference pref = mPrefs.get(i);
+ if (pref.isSystem) {
+ makeCurrentHome(pref);
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ void buildHomeActivitiesList() {
+ ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
+ ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);
+
+ Context context = getActivity();
+ mCurrentHome = null;
+ mPrefGroup.removeAll();
+ mPrefs = new ArrayList<HomeAppPreference>();
+ mHomeComponentSet = new ComponentName[homeActivities.size()];
+ int prefIndex = 0;
+ for (int i = 0; i < homeActivities.size(); i++) {
+ final ResolveInfo candidate = homeActivities.get(i);
+ final ActivityInfo info = candidate.activityInfo;
+ ComponentName activityName = new ComponentName(info.packageName, info.name);
+ mHomeComponentSet[i] = activityName;
+ try {
+ Drawable icon = info.loadIcon(mPm);
+ CharSequence name = info.loadLabel(mPm);
+ boolean isSystem = (info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
+ HomeAppPreference pref = new HomeAppPreference(context, activityName, prefIndex,
+ icon, name, this, isSystem);
+ mPrefs.add(pref);
+ mPrefGroup.addPreference(pref);
+ pref.setEnabled(true);
+ if (activityName.equals(currentDefaultHome)) {
+ mCurrentHome = pref;
+ }
+ prefIndex++;
+ } catch (Exception e) {
+ Log.v(TAG, "Problem dealing with activity " + activityName, e);
+ }
+ }
+
+ if (mCurrentHome != null) {
+ new Handler().post(new Runnable() {
+ public void run() {
+ mCurrentHome.setChecked(true);
+ }
+ });
+ }
+ }
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ addPreferencesFromResource(R.xml.home_selection);
+
+ mPm = getPackageManager();
+ mPrefGroup = (PreferenceGroup) findPreference("home");
+ }
+
+ @Override
+ public void onResume() {
+ super.onResume();
+ buildHomeActivitiesList();
+ }
+
+ class HomeAppPreference extends Preference {
+ ComponentName activityName;
+ int index;
+ boolean isSystem;
+ HomeSettings fragment;
+ final ColorFilter grayscaleFilter;
+ boolean isChecked;
+
+ public HomeAppPreference(Context context, ComponentName activity,
+ int i, Drawable icon, CharSequence title,
+ HomeSettings parent, boolean sys) {
+ super(context);
+ setLayoutResource(R.layout.preference_home_app);
+ setIcon(icon);
+ setTitle(title);
+ activityName = activity;
+ fragment = parent;
+ index = i;
+ isSystem = sys;
+
+ ColorMatrix colorMatrix = new ColorMatrix();
+ colorMatrix.setSaturation(0f);
+ float[] matrix = colorMatrix.getArray();
+ matrix[18] = 0.5f;
+ grayscaleFilter = new ColorMatrixColorFilter(colorMatrix);
+ }
+
+ @Override
+ protected void onBindView(View view) {
+ super.onBindView(view);
+
+ RadioButton radio = (RadioButton) view.findViewById(R.id.home_radio);
+ radio.setChecked(isChecked);
+
+ Integer indexObj = new Integer(index);
+
+ ImageView icon = (ImageView) view.findViewById(R.id.home_app_uninstall);
+ if (isSystem) {
+ icon.setEnabled(false);
+ icon.setColorFilter(grayscaleFilter);
+ } else {
+ icon.setOnClickListener(mDeleteClickListener);
+ icon.setTag(indexObj);
+ }
+
+ View v = view.findViewById(R.id.home_app_pref);
+ v.setOnClickListener(mHomeClickListener);
+ v.setTag(indexObj);
+ }
+
+ void setChecked(boolean state) {
+ if (state != isChecked) {
+ isChecked = state;
+ notifyChanged();
+ }
+ }
+ }
+}
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index e754f98..bcfffcb 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -26,8 +26,10 @@
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
+import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.INetworkManagementService;
@@ -144,7 +146,8 @@
R.id.about_settings,
R.id.accessibility_settings,
R.id.print_settings,
- R.id.nfc_payment_settings
+ R.id.nfc_payment_settings,
+ R.id.home_settings
};
private SharedPreferences mDevelopmentPreferences;
@@ -558,6 +561,8 @@
} else if (id == R.id.account_settings) {
int headerIndex = i + 1;
i = insertAccountsHeaders(target, headerIndex);
+ } else if (id == R.id.home_settings) {
+ updateHomeSettingHeaders(header);
} else if (id == R.id.user_settings) {
if (!UserHandle.MU_ENABLED
|| !UserManager.supportsMultipleUsers()
@@ -658,6 +663,51 @@
return headerIndex;
}
+ private boolean isSystemApp(ResolveInfo ri) {
+ return ((ri.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
+ }
+
+ private void updateHomeSettingHeaders(Header header) {
+ final PackageManager pm = getPackageManager();
+ final ArrayList<ResolveInfo> homeApps = new ArrayList<ResolveInfo>();
+ try {
+ ComponentName currentHome = pm.getHomeActivities(homeApps);
+ ResolveInfo iconSource = null;
+ if (currentHome == null) {
+ // no current default, so find the system home app and use that
+ for (int which = 0; which < homeApps.size(); which++) {
+ ResolveInfo ri = homeApps.get(which);
+ if (isSystemApp(ri)) {
+ iconSource = ri;
+ break;
+ }
+ }
+ } else {
+ // find the current-home entry in the returned set
+ for (int which = 0; which < homeApps.size(); which++) {
+ ResolveInfo ri = homeApps.get(which);
+ ComponentName riName = new ComponentName(ri.activityInfo.packageName,
+ ri.activityInfo.name);
+ if (riName.equals(currentHome)) {
+ iconSource = ri;
+ break;
+ }
+ }
+ }
+ if (iconSource != null) {
+ if (header.extras == null) {
+ header.extras = new Bundle();
+ }
+ header.extras.putParcelable(HomeSettings.CURRENT_HOME, iconSource.activityInfo);
+ } else {
+ Log.v(LOG_TAG, "No home app icon found");
+ }
+ } catch (Exception e) {
+ // Can't look up the home activity; bail on configuring the icon
+ Log.w(LOG_TAG, "Problem looking up home activity!", e);
+ }
+ }
+
private void getMetaData() {
try {
ActivityInfo ai = getPackageManager().getActivityInfo(getComponentName(),
@@ -820,17 +870,17 @@
//$FALL-THROUGH$
case HEADER_TYPE_NORMAL:
- if (header.extras != null
- && header.extras.containsKey(ManageAccountsSettings.KEY_ACCOUNT_TYPE)) {
+ if (header.extras != null &&
+ header.extras.containsKey(ManageAccountsSettings.KEY_ACCOUNT_TYPE)) {
String accType = header.extras.getString(
ManageAccountsSettings.KEY_ACCOUNT_TYPE);
- ViewGroup.LayoutParams lp = holder.icon.getLayoutParams();
- lp.width = getContext().getResources().getDimensionPixelSize(
- R.dimen.header_icon_width);
- lp.height = lp.width;
- holder.icon.setLayoutParams(lp);
Drawable icon = mAuthHelper.getDrawableForType(getContext(), accType);
- holder.icon.setImageDrawable(icon);
+ setHeaderIcon(holder, icon);
+ } else if (header.extras != null &&
+ header.extras.containsKey(HomeSettings.CURRENT_HOME)) {
+ ActivityInfo ai = header.extras.getParcelable(HomeSettings.CURRENT_HOME);
+ Drawable icon = ai.loadIcon(getContext().getPackageManager());
+ setHeaderIcon(holder, icon);
} else {
holder.icon.setImageResource(header.iconRes);
}
@@ -848,6 +898,15 @@
return view;
}
+ private void setHeaderIcon(HeaderViewHolder holder, Drawable icon) {
+ ViewGroup.LayoutParams lp = holder.icon.getLayoutParams();
+ lp.width = getContext().getResources().getDimensionPixelSize(
+ R.dimen.header_icon_width);
+ lp.height = lp.width;
+ holder.icon.setLayoutParams(lp);
+ holder.icon.setImageDrawable(icon);
+ }
+
public void resume() {
mWifiEnabler.resume();
mBluetoothEnabler.resume();