默认第一次开机屏幕亮度/日期格式/picture makeer model
最后更新于：2022-04-01 14:48:35
今天给大家分享下关于修改MTK平台下系统首次开机的默认屏幕背光亮度，系统语言默认英语情况下修改日期格式，修改拍照属性，具体修改的地方不清楚或者没人告知的
话，请参照之前几篇博客的方法分享，现在直接进入主题
首先我们来修改第一次开机的屏幕亮度
①修改首次开机的系统默认屏幕背光亮度，我是在该java下修改的------(把注释的地方都去掉，因为注释的地方都是修改了的)
packages\apps\Settings\src\com.mediatek.settings\RestoreRotationReceiver.java
~~~
// private SharedPreferences mSharedPreferences;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.v("RestoreRotationReceiver_IPO", action);
// mSharedPreferences = context.getSharedPreferences("walpad_first_run",Context.MODE_PRIVATE);
if (action.equals(Intent.ACTION_BOOT_COMPLETED)
|| action.equals("android.intent.action.ACTION_BOOT_IPO")) {
sRestoreRetore = Settings.System.getInt(context
.getContentResolver(),
Settings.System.ACCELEROMETER_ROTATION_RESTORE, 0) != 0;
// Engineer-Jsp add Unknown sources and Usb debugging default true
if (android.os.SystemProperties.isWalPadVersion() && !isFirstRunSettings(context)) {
// reboot first default unkonwn sources check
Settings.Global.putInt(context.getContentResolver(), Settings.Global.INSTALL_NON_MARKET_APPS,1);
// reboot first default usb debugging check
Settings.Global.putInt(context.getContentResolver(),Settings.Global.ADB_ENABLED, 1);
// save first reboot falgs boolean
// mSharedPreferences.edit().putString("isfirstrun", String.valueOf(true)).commit();
// firstrun defaulr birghtness value for 100%
// setWalpadCFirstRunDefaultBrightness(context);
}
if (sRestoreRetore) {
Settings.System.putInt(context.getContentResolver(),
Settings.System.ACCELEROMETER_ROTATION, 1);
Settings.System.putInt(context.getContentResolver(),
Settings.System.ACCELEROMETER_ROTATION_RESTORE, 0);
}
}
}
/**
* ***- MTK-6582-8382© -***
* isFirstRunSettings(Context context)
* walpad c firstrun need default false
* Engineer-Jsp add
* */
public boolean isFirstRunSettings(Context context){
if (TextUtils.isEmpty(mSharedPreferences.getString("isfirstrun", ""))) {
mSharedPreferences.edit()
.putString("isfirstrun", String.valueOf(false))
.commit();
}
return Boolean.valueOf(mSharedPreferences.getString("isfirstrun", ""));
}
/**
* ***- MTK-6582-8382© -***
* setWalpadCFirstRunDefaultBrightness(Context context)
* walpad c firstrun need default settings brightness value for 100%
* Engineer-Jsp add
* */
public void setWalpadCFirstRunDefaultBrightness(Context context){
try{
Uri uri = Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS);
Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 255);
context.getContentResolver().notifyChange(uri, null);
} catch (Exception localException){
localException.printStackTrace();
}
}
~~~
背光值最大 255 ，所以我们设置到最大就OK，意思是100%屏幕亮度，执行条件是我自己写的，分别是 android.os.SystemProperties.isWalPadVersion()，这个函数也是
我在系统代码里自己添加的，前面几篇博客也有提到，这里就不细说了，首次开机的记录，因为我们只需要第一次开机设置100%的屏幕亮度
②日期格式修改
packages\apps\Settings\src\com\android\settings\DateTimeSettings.java
~~~
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.date_time_prefs);
initUI();
/// M: get plug in and move roaming time setting into date and time settings @{
mExt = UtilsExt.getDateTimeSettingsPlugin(getActivity());
mExt.customizePreferenceScreen(getActivity(), getPreferenceScreen());
/// @}
}
~~~
修改initUI之前的原始系统代码:
~~~
private void initUI() {
boolean autoTimeEnabled = getAutoState(Settings.Global.AUTO_TIME);
boolean autoTimeZoneEnabled = getAutoState(Settings.Global.AUTO_TIME_ZONE);
///M: MTK use ListPreference instead of google CheckboxPerference
......
String [] dateFormats = getResources().getStringArray(R.array.date_format_values);
String [] formattedDates = new String[dateFormats.length];
String currentFormat = getDateFormat();
// Initialize if DATE_FORMAT is not set in the system settings
// This can happen after a factory reset (or data wipe)
if (currentFormat == null) {
currentFormat = "";
}
// Prevents duplicated values on date format selector.
mDummyDate.set(mDummyDate.get(Calendar.YEAR), mDummyDate.DECEMBER, 31, 13, 0, 0);
for (int i = 0; i < formattedDates.length; i++) {
String formatted =
DateFormat.getDateFormatForSetting(getActivity(), dateFormats[i])
.format(mDummyDate.getTime());
if (dateFormats[i].length() == 0) {
formattedDates[i] = getResources().
getString(R.string.normal_date_format, formatted);
} else {
formattedDates[i] = formatted;
}
}
mDateFormat.setEntries(formattedDates);
mDateFormat.setEntryValues(R.array.date_format_values);
mDateFormat.setValue(currentFormat);
......
}
~~~
原始getDateFormat():
~~~
private String getDateFormat() {
return Settings.System.getString(getContentResolver(),
Settings.System.DATE_FORMAT);
}
~~~
修改如下（修改为日期格式默认日月年）：
initUI:
~~~
private void initUI() {
boolean autoTimeEnabled = getAutoState(Settings.Global.AUTO_TIME);
boolean autoTimeZoneEnabled = getAutoState(Settings.Global.AUTO_TIME_ZONE);
///M: MTK use ListPreference instead of google CheckboxPerference
......
String [] dateFormats = getResources().getStringArray(R.array.date_format_values);
String [] formattedDates = new String[dateFormats.length];
String currentFormat = getDateFormat(dateFormats[2]);
// Initialize if DATE_FORMAT is not set in the system settings
// This can happen after a factory reset (or data wipe)
if (currentFormat == null) {
currentFormat = "";
}
// Prevents duplicated values on date format selector.
mDummyDate.set(mDummyDate.get(Calendar.YEAR), mDummyDate.DECEMBER, 31, 13, 0, 0);
for (int i = 0; i < formattedDates.length; i++) {
String formatted =
DateFormat.getDateFormatForSetting(getActivity(), dateFormats[i])
.format(mDummyDate.getTime());
if (dateFormats[i].length() == 0) {
formattedDates[i] = getResources().
getString(R.string.normal_date_format, formatted);
} else {
formattedDates[i] = formatted;
}
}
mDateFormat.setEntries(formattedDates);
mDateFormat.setEntryValues(R.array.date_format_values);
mDateFormat.setValue(currentFormat);
......
}
~~~
修改DateFormat():
~~~
private String getDateFormat(String format) {
// Engineer-Jsp add walpad c default date format
if(android.os.SystemProperties.isWalPadVersion()){
Settings.System.putString(getContentResolver(),
Settings.System.DATE_FORMAT, format);
}
return Settings.System.getString(getContentResolver(),
Settings.System.DATE_FORMAT);
}
~~~
R.array.date_format_values：
~~~
<string-array name="date_format_values" translatable="false">
<!-- The blank item means to use whatever the locale calls for. -->
<item></item>
<item>MM-dd-yyyy</item>
<item>dd-MM-yyyy</item>
<item>yyyy-MM-dd</item>
<item>EE-MMM-d-yyyy</item>
<item>EE-d-MMM-yyyy</item>
<item>yyyy-MMM-d-EE</item>
</string-array>
~~~
dateFormats[2] == <item>dd-MM-yyyy</item>
③picture makeer model ，修改 buildinfo.sh 文件，model\product 属性
修改之前：
修改之后：
第③是编译之后的效果图，前面两个的效果图就没有贴出来了