1.frameworks/base/packages/SettingsProvider/res/values/defaults.xml

---

<!--Sogou input method is used for system default input method by zfc-->
<string name="config_default_input_method" translatable="false">com.sohu.inputmethod.sogou/.SogouIME</string>
<string name="def_enabled_input_methods" translatable="false">com.sohu.inputmethod.sogou/.SogouIME</string>

 

 

2.frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java

---

 

private void loadSecureSettings(SQLiteDatabase db) {

　　SQLiteStatement stmt = null;
　　try {

　　　　stmt = db.compileStatement("INSERT OR IGNORE INTO secure(name,value)"
　　　　+ " VALUES(?,?);");

　　　　loadStringSetting(stmt, Settings.Secure.LOCATION_PROVIDERS_ALLOWED,
　　　　R.string.def_location_providers_allowed);

　　　　String wifiWatchList = SystemProperties.get("ro.com.android.wifi-watchlist");
　　　　if (!TextUtils.isEmpty(wifiWatchList)) {
　　　　　　loadSetting(stmt, Settings.Secure.WIFI_WATCHDOG_WATCH_LIST, wifiWatchList);
　　　　}

 

　　　　//Sogou input method is used for system default input method by zfc
　　　　loadStringSetting(stmt, Settings.Secure.DEFAULT_INPUT_METHOD, R.string.config_default_input_method);
　　　　loadStringSetting(stmt, Settings.Secure.ENABLED_INPUT_METHODS, R.string.def_enabled_input_methods);

 

　　　　/*
　　　　* IMPORTANT: Do not add any more upgrade steps here as the global,
　　　　* secure, and system settings are no longer stored in a database
　　　　* but are kept in memory and persisted to XML.
　　　　*
　　　　* See: SettingsProvider.UpgradeController#onUpgradeLocked
　　　　*/
　　　　} finally {
　　　　　　if (stmt != null) stmt.close();
　　　　}
}