Android4.0 设置系统默认输入法

设置系统默认输入法为：Android 键盘

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

139     <!-- Default for DEFAULT_INPUT_METHOD by caoyi -->
140     <string name="def_input_method" translatable="false">com.android.inputmethod.latin/.LatinIME</string>

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

1473             //default for DEFAULT_INPUT_METHOD by caoyi
1474             loadStringSetting(stmt, Settings.Secure.DEFAULT_INPUT_METHOD,
1475                     R.string.def_input_method);