android使用物理键盘的同时能够弹出软键盘

网上资料一大堆，拼拼凑凑应该能解决，我的思路比较简单：

• android4.4

WindowManagerService.java
boolean computeScreenConfigurationLocked(Configuration config) {
...
	// Determine whether a hard keyboard is available and enabled.
            boolean hardKeyboardAvailable = config.keyboard != Configuration.KEYBOARD_NOKEYS;
            if (hardKeyboardAvailable != mHardKeyboardAvailable) {
                mHardKeyboardAvailable = hardKeyboardAvailable;
                mHardKeyboardEnabled = hardKeyboardAvailable;
                mH.removeMessages(H.REPORT_HARD_KEYBOARD_STATUS_CHANGE);
                mH.sendEmptyMessage(H.REPORT_HARD_KEYBOARD_STATUS_CHANGE);
            }
            if (!mHardKeyboardEnabled) { // 这里是关键
                config.keyboard = Configuration.KEYBOARD_NOKEYS;
            }

            // Let the policy update hidden states.
            config.keyboardHidden = Configuration.KEYBOARDHIDDEN_NO;
            config.hardKeyboardHidden = Configuration.HARDKEYBOARDHIDDEN_NO;
            config.navigationHidden = Configuration.NAVIGATIONHIDDEN_NO;
            mPolicy.adjustConfigurationLw(config, keyboardPresence, navigationPresence);
...
}

config.keyboard = Configuration.KEYBOARD_NOKEYS;配置了就能弹出软键盘，你可以写个property配置，也可以干掉这个if，无论是否有物理键盘都能弹出软键盘了。

• android5.1
  5.1很便捷，有Settings参数：
  Settings.Secure.SHOW_IME_WITH_HARD_KEYBOARD
  overlay的时候配置一下：

true

初始化的时候配置：

DatabaseHelper.java
private void loadSecureSettings(SQLiteDatabase db) {
...
loadBooleanSetting(stmt, Settings.Secure.SHOW_IME_WITH_HARD_KEYBOARD,
                    R.bool.def_show_ime_with_hard_keyboard);
...
}