如何检索来自Android的计算器值 [英] How retrieve values from the Android Calculator

问题描述

我正在开发用户点击的EditText 的应用程序，它显示了android计算器，因此用户能够做算术运算。

I am developing an application which the user taps on EditText, it displays the android calculator, so the user is able to do arithmetic operations.

我想，当用户presses在android计算器平等按钮获取最终值并显示它。这是可能的使用标准Android计算器？

I would like to retrieve the final value when the user presses the equal button in the android calculator and display it. Is that possible using the standard android calculator?

在code打开计算器如下：

The code to open the calculator is the following:

Intent intent = new Intent();           
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.setComponent(new ComponentName(CALCULATOR_PACKAGE, CALCULATOR_CLASS));
startActivity(intent);

其中，

String CALCULATOR_PACKAGE ="com.android.calculator2";
String CALCULATOR_CLASS ="com.android.calculator2.Calculator";

有关如何检索从计算器终值任何意见或建议？结果
谢谢

Any ideas or suggestion about how to retrieve the final value from the calculator?
Thanks

推荐答案

它使用标准计算器是不可能的，但计算器是开源的，所以你可以创建自己的计算器。源包含一个名为逻辑（Logic.java）类;如果您更新方法evaluateAndShowResult（）来自动粘贴结果到剪贴板，然后做一个贴在你的应用程序，你准备好了。

It's not possible using the standard calculator, but that calculator is open source, so you could create your own calculator. The source contains a class called Logic (Logic.java); if you update the method evaluateAndShowResult() to automatically paste the result to the clipboard, and then do a paste in your app, you'd be ready.

作为一种替代方法，如果你真的不需要计算器的用户界面，你可以只取逻辑和垃圾的其余部分。

As an alternative, if you really don't need the calculator's UI, you could just take Logic and trash the rest.

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