增加英文、阿拉伯文输入法
修改代码：
1、frameworks\base\packages\SettingsProvider\res\values\defaults.xml
<string name="def_input_methods">com.android.inputmethod.latin/.LatinIME;-921088104;1494081088</string>
2、frameworks\base\packages\SettingsProvider\src\com\android\providers\settings\DatabaseHelper.java
loadSecureSettings方法中增加：
loadStringSetting(stmt,Secure.ENABLED_INPUT_METHODS,R.string.def_input_method);

android/packages/inputmethods/LatinIME/java/res/xml/method.xml中有定义的
英文(en_US) 0xc9194f98 -921088104
阿拉伯文(ar) 0x590dde40 1494081088

源码中packages\inputmethods\LatinIME\java\res\xml\method.xml可以看到对应的值
也可以写调试代码：

private static final String[] DEFAULT_LANGUAGES = {"en_US","ru"};//英语，俄语private void getCommoit(Context context) {final String serviceName = "com.android.inputmethod.latin/.LatinIME";final String currentPackageName = "com.android.inputmethod.latin";final String enable = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ENABLED_INPUT_METHODS);final InputMethodManager imm = (InputMethodManager) context.getSystemService( Context.INPUT_METHOD_SERVICE);final StringBuilder builder = new StringBuilder();for (InputMethodInfo info : imm.getInputMethodList()) {if (currentPackageName.equals(info.getPackageName())) {for (int i = 0; i < info.getSubtypeCount(); i++) { final InputMethodSubtype subtype = info.getSubtypeAt(i); final String locale = subtype.getLocale().toString();if (isDefaultLocale(locale)) {builder.append(';');builder.append(subtype.hashCode());}}break;}}if (builder.length() > 0 && !TextUtils.isEmpty(enable)) {final String subtype = builder.toString(); builder.setLength(0); final int index = enable.indexOf(serviceName) + serviceName.length(); if (enable.length() > index) { builder.append(enable.substring(0, index)); builder.append(subtype); builder.append(enable.substring(index)); } else if (enable.length() == index) { builder.append(enable); builder.append(subtype); } else { return; }} else { return; }//这里是我想要的信息了Log.i(TAG,"debug by 123 commoit:"+builder.toString());//com.android.inputmethod.latin/.LatinIME;-921088104;1983547218}private boolean isDefaultLocale (String locale) { final String[] locales = DEFAULT_LANGUAGES;for (String str : locales) {if (str.equals(locale)) {return true;}}return false; }

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