创建一个按钮

本文介绍了创建一个按钮的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想创建一个按钮，这将启动randomGenerator。

I am trying to create a button which would start the randomGenerator.

Random randomGenerator = new Random();
    int randomInt = randomGenerator.nextInt(9);
    String wordList[] = new String[9];
    {
        wordList[0] = "Mexican";
        wordList[1] = "American";
        wordList[2] = "Barbeque";
        wordList[3] = "Chinese";
        wordList[4] = "Indian";
        wordList[5] = "Italian";
        wordList[6] = "Thai";
        wordList[7] = "Viatnamese";
        wordList[8] = "Middle Eastern";

    }


 String wordToDisplay = wordList[randomInt];

下面是我的布局，我已经创建了我的按键和标记它。只是不知道如何从这里着手。

Here's my layout, I have already created my button and labeled it. Just not sure how to proceed from here.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:padding="@dimen/padding_medium"
        android:text="@string/hello_world"

        tools:context=".ImHungry" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="@string/button1" />

</RelativeLayout>

三江源！

推荐答案

您可以做这样的事情：

添加安卓的onClick =randomGenerator你的按钮属性。然后在你的活动。
使一个被点击的按钮时要调用的函数。（我假设你想要做你的随机生成code点击按钮时）。

Add android:onClick="randomGenerator" to your button attribute. Then in your activity.make a function that will be called when your button is clicked. (I assumed that you wanted to do your random generation code when the button is clicked.)

public void randomGenerator(View view){

    Random randomGenerator = new Random();
    int randomInt = randomGenerator.nextInt(9);
    String wordList[] = new String[9];
    {
        wordList[0] = "Mexican";
        wordList[1] = "American";
        wordList[2] = "Barbeque";
        wordList[3] = "Chinese";
        wordList[4] = "Indian";
        wordList[5] = "Italian";
        wordList[6] = "Thai";
        wordList[7] = "Viatnamese";
        wordList[8] = "Middle Eastern";

    }

    String wordToDisplay = wordList[randomInt];

}

希望有所帮助。

这篇关于创建一个按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

onclick