sr-iHealthApp/html/js/android.js

var Context,
	InputMethodManager,
    main,
	imm;

function initKeyboardAndroid(){
	if(plus.android.runtimeMainActivity){
		plus.android.importClass(plus.android.currentWebview());
	
		Context = plus.android.importClass("android.content.Context");
		InputMethodManager = plus.android.importClass("android.view.inputmethod.InputMethodManager");
		main = plus.android.runtimeMainActivity();
		imm = main.getSystemService(Context.INPUT_METHOD_SERVICE);
	}
}

function openSoftKeyboard() {
	if(!plus.android.runtimeMainActivity) {
		plus.webview.currentWebview().nativeInstanceObject()
			.plusCallMethod({
				"setKeyboardDisplayRequiresUserAction": false
		});
	} else {
		plus.android.currentWebview().requestFocus();
		imm.toggleSoftInput(0, InputMethodManager.SHOW_FORCED);
	}
}