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Fix 2527411: Remove unusable display timeouts from Settings.

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This fix removes unusable display timeouts from Settings when
a device policy is enabled.

Patch 3 catches the case where not having any active policies clears the list.

Change-Id: I5b08d420c73b1c2e6fe2bb4e65656790290574cd
This commit is contained in:
Jim Miller
2010-03-29 20:18:51 -07:00
parent 29c8037335
commit d90b5a84d8
1 changed files with 30 additions and 8 deletions
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38
src/com/android/settings/DisplaySettings.java
View File

@@ -18,14 +18,11 @@ package com.android.settings;
import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
import com.android.settings.bluetooth.DockEventReceiver;
import java.util.ArrayList;
import android.content.BroadcastReceiver;
import android.app.admin.DevicePolicyManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.AudioManager;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.ServiceManager;
@@ -33,11 +30,8 @@ import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.PreferenceScreen;
import android.provider.Settings;
import android.provider.Settings.SettingNotFoundException;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.IWindowManager;
@@ -76,7 +70,35 @@ public class DisplaySettings extends PreferenceActivity implements
screenTimeoutPreference.setValue(String.valueOf(Settings.System.getInt(
resolver, SCREEN_OFF_TIMEOUT, FALLBACK_SCREEN_TIMEOUT_VALUE)));
screenTimeoutPreference.setOnPreferenceChangeListener(this);
disableUnusableTimeouts(screenTimeoutPreference);
}
private void disableUnusableTimeouts(ListPreference screenTimeoutPreference) {
DevicePolicyManager dpm =
(DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
long maxTimeout = dpm != null ? dpm.getMaximumTimeToLock(null) : 0;
if (maxTimeout == 0) {
return; // policy not enforced
}
final CharSequence[] entries = screenTimeoutPreference.getEntries();
final CharSequence[] values = screenTimeoutPreference.getEntryValues();
ArrayList<CharSequence> revisedEntries = new ArrayList<CharSequence>();
ArrayList<CharSequence> revisedValues = new ArrayList<CharSequence>();
for (int i = 0; i < values.length; i++) {
long timeout = Long.valueOf(values[i].toString());
if (timeout <= maxTimeout) {
revisedEntries.add(entries[i]);
revisedValues.add(values[i]);
}
}
if (revisedEntries.size() != entries.length || revisedValues.size() != values.length) {
screenTimeoutPreference.setEntries(
revisedEntries.toArray(new CharSequence[revisedEntries.size()]));
screenTimeoutPreference.setEntryValues(
revisedValues.toArray(new CharSequence[revisedValues.size()]));
screenTimeoutPreference.setValue(String.valueOf(maxTimeout));
}
screenTimeoutPreference.setEnabled(revisedEntries.size() > 0);
}
@Override