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Port AOKP: [2/3] Install persistence support
save and restore data across installs. Initial data includes property ro.sf.lcd_density and file etc/hosts. Behavior is controlled via configuration file etc/persist.conf. Conflicts: AndroidManifest.xml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <PreferenceScreen | ||
| xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:title="@string/persistance"> | ||
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| <PreferenceCategory | ||
| android:title="@string/title_persistance"> | ||
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| <CheckBoxPreference | ||
| android:key="enable_persist" | ||
| android:title="@string/persist_enable" | ||
| android:summary="@string/persist_enable_summary" /> | ||
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| <CheckBoxPreference | ||
| android:key="persist_prop_density" | ||
| android:dependency="enable_persist" | ||
| android:title="@string/persist_prop_density" | ||
| android:summary="@string/persist_prop_density_summary" /> | ||
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| <CheckBoxPreference | ||
| android:key="persist_file_hosts" | ||
| android:dependency="enable_persist" | ||
| android:title="@string/persist_file_hosts" | ||
| android:summary="@string/persist_file_hosts_summary" /> | ||
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| </PreferenceCategory> | ||
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| </PreferenceScreen> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,224 @@ | ||
| package com.android.settings.demented; | ||
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| import android.app.Activity; | ||
| import android.content.ComponentName; | ||
| import android.content.Intent; | ||
| import android.content.pm.PackageManager.NameNotFoundException; | ||
| import android.graphics.Bitmap; | ||
| import android.graphics.drawable.BitmapDrawable; | ||
| import android.graphics.drawable.Drawable; | ||
| import android.os.Bundle; | ||
| import android.preference.CheckBoxPreference; | ||
| import android.preference.ListPreference; | ||
| import android.preference.Preference; | ||
| import android.preference.Preference.OnPreferenceChangeListener; | ||
| import android.preference.PreferenceScreen; | ||
| import android.provider.Settings; | ||
| import android.text.TextUtils; | ||
| import android.util.Log; | ||
| import android.util.TypedValue; | ||
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| import com.android.settings.R; | ||
| import com.android.settings.SettingsPreferenceFragment; | ||
| import com.android.settings.util.Helpers; | ||
| import com.android.settings.util.CMDProcessor; | ||
| import com.android.settings.util.CommandResult; | ||
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| import java.io.BufferedReader; | ||
| import java.io.BufferedWriter; | ||
| import java.io.FileReader; | ||
| import java.io.FileWriter; | ||
| import java.io.IOException; | ||
| import java.io.FileNotFoundException; | ||
| import java.net.URISyntaxException; | ||
| import java.util.ArrayList; | ||
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| public class Installer extends SettingsPreferenceFragment { | ||
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| private static final String TAG = "Installer"; | ||
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| private static final String CONF_FILE = "/system/etc/persist.conf"; | ||
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| private static final String PREF_PERSIST_ENABLE = "enable_persist"; | ||
| private static final String PREF_PERSIST_PROP_DENSITY = "persist_prop_density"; | ||
| private static final String PREF_PERSIST_FILE_HOSTS = "persist_file_hosts"; | ||
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| private Preference mPreference; | ||
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| CheckBoxPreference mPrefPersistEnable; | ||
| CheckBoxPreference mPrefPersistDensity; | ||
| CheckBoxPreference mPrefPersistHosts; | ||
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| boolean mPersistEnable; | ||
| ArrayList<String> mPersistProps; | ||
| ArrayList<String> mPersistFiles; | ||
| ArrayList<String> mPersistTrailer; | ||
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| private boolean stringToBool(String val) { | ||
| if (val.equals("0") || | ||
| val.equals("false") || | ||
| val.equals("False")) { | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
| private String boolToString(boolean val) { | ||
| return (val ? "true" : "false"); | ||
| } | ||
| private ArrayList<String> stringToStringArray(String val) { | ||
| ArrayList<String> ret = new ArrayList<String>(); | ||
| int p1 = val.indexOf("\""); | ||
| int p2 = val.lastIndexOf("\""); | ||
| if (p1 >= 0 && p2 > p1+1) { | ||
| String dqval = val.substring(p1+1, p2); | ||
| for (String s : dqval.split(" +")) { | ||
| ret.add(s); | ||
| } | ||
| } | ||
| return ret; | ||
| } | ||
| private String stringArrayToString(ArrayList<String> val) { | ||
| String ret = ""; | ||
| boolean first = true; | ||
| ret += "\""; | ||
| for (String s : val) { | ||
| if (!first) { | ||
| ret += " "; | ||
| } | ||
| ret += s; | ||
| first = false; | ||
| } | ||
| ret += "\""; | ||
| return ret; | ||
| } | ||
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| boolean loadPrefs() { | ||
| mPersistEnable = true; | ||
| mPersistProps = new ArrayList<String>(); | ||
| mPersistFiles = new ArrayList<String>(); | ||
| mPersistTrailer = new ArrayList<String>(); | ||
| BufferedReader br = null; | ||
| try { | ||
| br = new BufferedReader(new FileReader(CONF_FILE), 1024); | ||
| boolean inTrailer = false; | ||
| String line; | ||
| while ((line = br.readLine()) != null) { | ||
| if (line.startsWith("# END REPLACE")) { | ||
| inTrailer = true; | ||
| } | ||
| if (!inTrailer) { | ||
| if (line.startsWith("persist_")) { | ||
| String[] fields = line.split("=", 2); | ||
| if (fields[0].equals("persist_enable")) { | ||
| mPersistEnable = stringToBool(fields[1]); | ||
| } | ||
| if (fields[0].equals("persist_props")) { | ||
| mPersistProps = stringToStringArray(fields[1]); | ||
| } | ||
| if (fields[0].equals("persist_files")) { | ||
| mPersistFiles = stringToStringArray(fields[1]); | ||
| } | ||
| } | ||
| } | ||
| else { | ||
| mPersistTrailer.add(line); | ||
| } | ||
| } | ||
| } | ||
| catch (FileNotFoundException e) { | ||
| Log.e(TAG, "Config file not found"); | ||
| } | ||
| catch (IOException e) { | ||
| Log.e(TAG, "Exception reading config file: " + e.getMessage()); | ||
| } | ||
| finally { | ||
| if (br != null) { | ||
| try { | ||
| br.close(); | ||
| } | ||
| catch (IOException e) { | ||
| // Igonre | ||
| } | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
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| boolean savePrefs() { | ||
| BufferedWriter bw = null; | ||
| Helpers.getMount("rw"); | ||
| String[] cmdarray = new String[3]; | ||
| cmdarray[0] = "su"; | ||
| cmdarray[1] = "-c"; | ||
| cmdarray[2] = "cat > " + CONF_FILE; | ||
| StringBuffer childStdin = new StringBuffer(); | ||
| childStdin.append("# /system/etc/persist.conf\n"); | ||
| childStdin.append("persist_enable=" + boolToString(mPersistEnable) + "\n"); | ||
| childStdin.append("persist_props=" + stringArrayToString(mPersistProps) + "\n"); | ||
| childStdin.append("persist_files=" + stringArrayToString(mPersistFiles) + "\n"); | ||
| for (String line : mPersistTrailer) { | ||
| childStdin.append(line + "\n"); | ||
| } | ||
| CommandResult cr = CMDProcessor.runSysCmd(cmdarray, childStdin.toString()); | ||
| Log.i(TAG, "savePrefs: result=" + cr.getExitValue()); | ||
| Log.i(TAG, "savePrefs: stdout=" + cr.getStdout()); | ||
| Log.i(TAG, "savePrefs: stderr=" + cr.getStderr()); | ||
| Helpers.getMount("ro"); | ||
| return true; | ||
| } | ||
|
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| @Override | ||
| public void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
|
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| // Load the preferences from an XML resource | ||
| addPreferencesFromResource(R.xml.prefs_installer); | ||
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| PreferenceScreen prefs = getPreferenceScreen(); | ||
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| loadPrefs(); | ||
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| mPrefPersistEnable = (CheckBoxPreference)findPreference(PREF_PERSIST_ENABLE); | ||
| mPrefPersistEnable.setChecked(mPersistEnable); | ||
| mPrefPersistDensity = (CheckBoxPreference)findPreference(PREF_PERSIST_PROP_DENSITY); | ||
| mPrefPersistDensity.setChecked(mPersistProps.contains("ro.sf.lcd_density")); | ||
| mPrefPersistHosts = (CheckBoxPreference)findPreference(PREF_PERSIST_FILE_HOSTS); | ||
| mPrefPersistHosts.setChecked(mPersistFiles.contains("etc/hosts")); | ||
| } | ||
|
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| @Override | ||
| public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, | ||
| Preference preference) { | ||
| boolean isChecked = ((CheckBoxPreference)preference).isChecked(); | ||
| if (preference == mPrefPersistEnable) { | ||
| mPersistEnable = isChecked; | ||
| savePrefs(); | ||
| return true; | ||
| } | ||
| if (preference == mPrefPersistDensity) { | ||
| if (isChecked) { | ||
| if (!mPersistProps.contains("ro.sf.lcd_density")) { | ||
| mPersistProps.add("ro.sf.lcd_density"); | ||
| } | ||
| } | ||
| else { | ||
| mPersistProps.remove("ro.sf.lcd_density"); | ||
| } | ||
| savePrefs(); | ||
| return true; | ||
| } | ||
| if (preference == mPrefPersistHosts) { | ||
| if (isChecked) { | ||
| if (!mPersistFiles.contains("etc/hosts")) { | ||
| mPersistFiles.add("etc/hosts"); | ||
| } | ||
| } | ||
| else { | ||
| mPersistFiles.remove("etc/hosts"); | ||
| } | ||
| savePrefs(); | ||
| return true; | ||
| } | ||
| return super.onPreferenceTreeClick(preferenceScreen, preference); | ||
| } | ||
| } |