Android 13 新增变量的步骤

Android13 新增参数相关的文件

frameworks/base/core/api/current.txt
frameworks/base/core/java/android/provider/Settings.java
frameworks/base/packages/SettingsProvider/res/values/defaults.xml
frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java

Android13 新增参数的步骤如下

1、定义：frameworks/base/core/java/android/provider/

MOVED_TO_GLOBAL.add(Settings.Global.SOURCE_NAME_0);
@Deprecated
public static final String SOURCE_NAME_0 = Global.SOURCE_NAME_0;
@SuppressLint("NoSettingsProvider")
public static final String SOURCE_NAME_0 = "source_name_0";

注：一定要加上@SuppressLint(“NoSettingsProvider”)否则不会生效

2、初始化：frameworks/base/packages/SettingsProvider/res/values/

<string name="source_name_0" translatable="false">VGA</string>

3、frameworks/base/core/api/

field public static final String SOURCE_NAME_0 = "source_name_0";
field @Deprecated public static final String SOURCE_NAME_0 = "source_name_0";

4、设置默认值：frameworks/base/packages/SettingsProvider/src/com/android/providers/
settings/

loadStringSetting(stmt, Settings.Global.SOURCE_NAME_0,R.string.source_name_0);

5、使用：

Settings.Global.getString(getActivity().getContentResolver(),Settings.Global.source_name_0,”VGA”);
Settings.Global.putString(getActivity().getContentResolver(),Settings.Global.source_name_0,”HDMI”);