ApplicationSettings.java revision 819dff1c18d3e83a277a8e461ad3397e8b3ded52 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.settings;
18
19import android.app.AlertDialog;
20import android.content.DialogInterface;
21import android.content.res.Configuration;
22import android.os.Bundle;
23import android.preference.CheckBoxPreference;
24import android.preference.ListPreference;
25import android.preference.Preference;
26import android.preference.PreferenceScreen;
27import android.preference.Preference.OnPreferenceChangeListener;
28import android.provider.Settings;
29
30public class ApplicationSettings extends SettingsPreferenceFragment implements
31        DialogInterface.OnClickListener {
32
33    private static final String KEY_TOGGLE_INSTALL_APPLICATIONS = "toggle_install_applications";
34    private static final String KEY_APP_INSTALL_LOCATION = "app_install_location";
35
36    // App installation location. Default is ask the user.
37    private static final int APP_INSTALL_AUTO = 0;
38    private static final int APP_INSTALL_DEVICE = 1;
39    private static final int APP_INSTALL_SDCARD = 2;
40
41    private static final String APP_INSTALL_DEVICE_ID = "device";
42    private static final String APP_INSTALL_SDCARD_ID = "sdcard";
43    private static final String APP_INSTALL_AUTO_ID = "auto";
44
45    private CheckBoxPreference mToggleAppInstallation;
46
47    private ListPreference mInstallLocation;
48
49    private DialogInterface mWarnInstallApps;
50
51    @Override
52    public void onCreate(Bundle icicle) {
53        super.onCreate(icicle);
54
55        addPreferencesFromResource(R.xml.application_settings);
56
57        mToggleAppInstallation = (CheckBoxPreference) findPreference(KEY_TOGGLE_INSTALL_APPLICATIONS);
58        mToggleAppInstallation.setChecked(isNonMarketAppsAllowed());
59
60        mInstallLocation = (ListPreference) findPreference(KEY_APP_INSTALL_LOCATION);
61        // Is app default install location set?
62        boolean userSetInstLocation = (Settings.System.getInt(getContentResolver(),
63                Settings.Secure.SET_INSTALL_LOCATION, 0) != 0);
64        if (!userSetInstLocation) {
65            getPreferenceScreen().removePreference(mInstallLocation);
66        } else {
67            mInstallLocation.setValue(getAppInstallLocation());
68            mInstallLocation.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
69                public boolean onPreferenceChange(Preference preference, Object newValue) {
70                    String value = (String) newValue;
71                    handleUpdateAppInstallLocation(value);
72                    return false;
73                }
74            });
75        }
76    }
77
78    protected void handleUpdateAppInstallLocation(final String value) {
79        if(APP_INSTALL_DEVICE_ID.equals(value)) {
80            Settings.System.putInt(getContentResolver(),
81                    Settings.Secure.DEFAULT_INSTALL_LOCATION, APP_INSTALL_DEVICE);
82        } else if (APP_INSTALL_SDCARD_ID.equals(value)) {
83            Settings.System.putInt(getContentResolver(),
84                    Settings.Secure.DEFAULT_INSTALL_LOCATION, APP_INSTALL_SDCARD);
85        } else if (APP_INSTALL_AUTO_ID.equals(value)) {
86            Settings.System.putInt(getContentResolver(),
87                    Settings.Secure.DEFAULT_INSTALL_LOCATION, APP_INSTALL_AUTO);
88        } else {
89            // Should not happen, default to prompt...
90            Settings.System.putInt(getContentResolver(),
91                    Settings.Secure.DEFAULT_INSTALL_LOCATION, APP_INSTALL_AUTO);
92        }
93        mInstallLocation.setValue(value);
94    }
95
96    @Override
97    public void onDestroy() {
98        super.onDestroy();
99        if (mWarnInstallApps != null) {
100            mWarnInstallApps.dismiss();
101        }
102    }
103
104    @Override
105    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
106        if (preference == mToggleAppInstallation) {
107            if (mToggleAppInstallation.isChecked()) {
108                mToggleAppInstallation.setChecked(false);
109                warnAppInstallation();
110            } else {
111                setNonMarketAppsAllowed(false);
112            }
113        }
114
115        return super.onPreferenceTreeClick(preferenceScreen, preference);
116    }
117
118    public void onClick(DialogInterface dialog, int which) {
119        if (dialog == mWarnInstallApps && which == DialogInterface.BUTTON_POSITIVE) {
120            setNonMarketAppsAllowed(true);
121            mToggleAppInstallation.setChecked(true);
122        }
123    }
124
125    private void setNonMarketAppsAllowed(boolean enabled) {
126        // Change the system setting
127        Settings.Secure.putInt(getContentResolver(), Settings.Secure.INSTALL_NON_MARKET_APPS,
128                                enabled ? 1 : 0);
129    }
130
131    private boolean isNonMarketAppsAllowed() {
132        return Settings.Secure.getInt(getContentResolver(),
133                                      Settings.Secure.INSTALL_NON_MARKET_APPS, 0) > 0;
134    }
135
136    private String getAppInstallLocation() {
137        int selectedLocation = Settings.System.getInt(getContentResolver(),
138                Settings.Secure.DEFAULT_INSTALL_LOCATION, APP_INSTALL_AUTO);
139        if (selectedLocation == APP_INSTALL_DEVICE) {
140            return APP_INSTALL_DEVICE_ID;
141        } else if (selectedLocation == APP_INSTALL_SDCARD) {
142            return APP_INSTALL_SDCARD_ID;
143        } else  if (selectedLocation == APP_INSTALL_AUTO) {
144            return APP_INSTALL_AUTO_ID;
145        } else {
146            // Default value, should not happen.
147            return APP_INSTALL_AUTO_ID;
148        }
149    }
150
151    private void warnAppInstallation() {
152        // TODO: DialogFragment?
153        mWarnInstallApps = new AlertDialog.Builder(getActivity()).setTitle(
154                getResources().getString(R.string.error_title))
155                .setIcon(com.android.internal.R.drawable.ic_dialog_alert)
156                .setMessage(getResources().getString(R.string.install_all_warning))
157                .setPositiveButton(android.R.string.yes, this)
158                .setNegativeButton(android.R.string.no, null)
159                .show();
160    }
161}
162