Introduce 'Home' settings
Bug 9958444 Change-Id: I868f5b7aa6ae9273b725cb96e80821a82569e7e0
This commit is contained in:
Christopher Tate
243
src/com/android/settings/HomeSettings.java
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243
src/com/android/settings/HomeSettings.java
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import java.util.ArrayList;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.pm.ActivityInfo;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.graphics.ColorFilter;
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import android.graphics.ColorMatrix;
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import android.graphics.ColorMatrixColorFilter;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Handler;
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import android.preference.Preference;
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import android.preference.PreferenceGroup;
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import android.util.Log;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.ImageView;
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import android.widget.RadioButton;
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public class HomeSettings extends SettingsPreferenceFragment {
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static final String TAG = "HomeSettings";
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static final int REQUESTING_UNINSTALL = 10;
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public static final String CURRENT_HOME = "current_home";
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PreferenceGroup mPrefGroup;
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PackageManager mPm;
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ComponentName[] mHomeComponentSet;
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ArrayList<HomeAppPreference> mPrefs;
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HomeAppPreference mCurrentHome = null;
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final IntentFilter mHomeFilter;
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public HomeSettings() {
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mHomeFilter = new IntentFilter(Intent.ACTION_MAIN);
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mHomeFilter.addCategory(Intent.CATEGORY_HOME);
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mHomeFilter.addCategory(Intent.CATEGORY_DEFAULT);
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}
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OnClickListener mHomeClickListener = new OnClickListener() {
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@Override
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public void onClick(View v) {
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int index = (Integer)v.getTag();
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HomeAppPreference pref = mPrefs.get(index);
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if (!pref.isChecked) {
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makeCurrentHome(pref);
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}
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}
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};
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OnClickListener mDeleteClickListener = new OnClickListener() {
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@Override
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public void onClick(View v) {
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int index = (Integer)v.getTag();
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uninstallApp(mPrefs.get(index));
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}
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};
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void makeCurrentHome(HomeAppPreference newHome) {
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if (mCurrentHome != null) {
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mCurrentHome.setChecked(false);
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}
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newHome.setChecked(true);
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mCurrentHome = newHome;
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mPm.replacePreferredActivity(mHomeFilter, IntentFilter.MATCH_CATEGORY_EMPTY,
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mHomeComponentSet, newHome.activityName);
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}
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void uninstallApp(HomeAppPreference pref) {
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// Uninstallation is done by asking the OS to do it
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Uri packageURI = Uri.parse("package:" + pref.activityName.getPackageName());
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Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI);
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uninstallIntent.putExtra(Intent.EXTRA_UNINSTALL_ALL_USERS, false);
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int requestCode = REQUESTING_UNINSTALL + (pref.isChecked ? 1 : 0);
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startActivityForResult(uninstallIntent, requestCode);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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// Rebuild the list now that we might have nuked something
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buildHomeActivitiesList();
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// if the previous home app is now gone, fall back to the system one
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if (requestCode > REQUESTING_UNINSTALL) {
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// if mCurrentHome has gone null, it means we didn't find the previously-
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// default home app when rebuilding the list, i.e. it was the one we
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// just uninstalled. When that happens we make the system-bundled
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// home app the active default.
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if (mCurrentHome == null) {
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for (int i = 0; i < mPrefs.size(); i++) {
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HomeAppPreference pref = mPrefs.get(i);
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if (pref.isSystem) {
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makeCurrentHome(pref);
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break;
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}
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}
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}
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}
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}
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void buildHomeActivitiesList() {
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ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
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ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);
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Context context = getActivity();
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mCurrentHome = null;
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mPrefGroup.removeAll();
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mPrefs = new ArrayList<HomeAppPreference>();
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mHomeComponentSet = new ComponentName[homeActivities.size()];
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int prefIndex = 0;
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for (int i = 0; i < homeActivities.size(); i++) {
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final ResolveInfo candidate = homeActivities.get(i);
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final ActivityInfo info = candidate.activityInfo;
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ComponentName activityName = new ComponentName(info.packageName, info.name);
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mHomeComponentSet[i] = activityName;
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try {
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Drawable icon = info.loadIcon(mPm);
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CharSequence name = info.loadLabel(mPm);
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boolean isSystem = (info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
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HomeAppPreference pref = new HomeAppPreference(context, activityName, prefIndex,
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icon, name, this, isSystem);
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mPrefs.add(pref);
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mPrefGroup.addPreference(pref);
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pref.setEnabled(true);
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if (activityName.equals(currentDefaultHome)) {
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mCurrentHome = pref;
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}
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prefIndex++;
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} catch (Exception e) {
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Log.v(TAG, "Problem dealing with activity " + activityName, e);
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}
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}
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if (mCurrentHome != null) {
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new Handler().post(new Runnable() {
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public void run() {
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mCurrentHome.setChecked(true);
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}
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});
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}
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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addPreferencesFromResource(R.xml.home_selection);
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mPm = getPackageManager();
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mPrefGroup = (PreferenceGroup) findPreference("home");
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}
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@Override
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public void onResume() {
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super.onResume();
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buildHomeActivitiesList();
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}
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class HomeAppPreference extends Preference {
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ComponentName activityName;
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int index;
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boolean isSystem;
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HomeSettings fragment;
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final ColorFilter grayscaleFilter;
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boolean isChecked;
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public HomeAppPreference(Context context, ComponentName activity,
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int i, Drawable icon, CharSequence title,
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HomeSettings parent, boolean sys) {
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super(context);
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setLayoutResource(R.layout.preference_home_app);
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setIcon(icon);
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setTitle(title);
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activityName = activity;
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fragment = parent;
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index = i;
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isSystem = sys;
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ColorMatrix colorMatrix = new ColorMatrix();
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colorMatrix.setSaturation(0f);
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float[] matrix = colorMatrix.getArray();
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matrix[18] = 0.5f;
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grayscaleFilter = new ColorMatrixColorFilter(colorMatrix);
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}
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@Override
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protected void onBindView(View view) {
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super.onBindView(view);
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RadioButton radio = (RadioButton) view.findViewById(R.id.home_radio);
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radio.setChecked(isChecked);
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Integer indexObj = new Integer(index);
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ImageView icon = (ImageView) view.findViewById(R.id.home_app_uninstall);
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if (isSystem) {
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icon.setEnabled(false);
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icon.setColorFilter(grayscaleFilter);
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} else {
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icon.setOnClickListener(mDeleteClickListener);
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icon.setTag(indexObj);
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}
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View v = view.findViewById(R.id.home_app_pref);
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v.setOnClickListener(mHomeClickListener);
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v.setTag(indexObj);
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}
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void setChecked(boolean state) {
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if (state != isChecked) {
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isChecked = state;
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notifyChanged();
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}
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}
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}
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}
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