android-反应过来的时候2单击按钮 [英] android- react when 2 button clicked

问题描述

我想建立简单的记忆游戏。我用16按钮。
我知道如何具体当按钮被cliked反应，但我怎么能应对每个按钮点击检查是否匹配按钮的选择（不neccesrly现在）？

I want to build simple memory game. I used 16 button. I know how to react when specific button is cliked, but how can I react to each button click and check if the match button was selected (not neccesrly now)?

推荐答案

在XML中，使用相同的名称为您的的onClick 每个按钮

In xml, use the same name for your onClick for each Button

<Button
   android:id="@+id/btn1"
   ...
   android:onClick="btnClick"/>
<Button
   android:id="@+id/btn2"
   ...
   android:onClick="btnClick"/>

而在你的java code确保该函数是公共的，有你在XML的的onClick 财产上述相同的名称，它需要一个查看作为其唯一的参数。在查看将是按钮点击这样你就可以得到它的 ID 和开关上，使用的if / else 不过还是要处理的。

And in your java code make sure that the function is public, has the same name you defined in your xml's onClick property above, and that it takes a View as its only parameter. The View will be the Button clicked so you can get its id and switch on that, use if/else or however you want to handle that

public void btnClick(View v)
{
    switch(v.getId())    // v is the btn that was clicked so this will give you its id
    {
        case (R.id.btn1):   btn1 was clicked
         ... do stuff

要回答你的第一个问题，你可以使用标志的建议提前或计数器，如果计数器==说2，然后点击确实你需要什么。如果没有，那么你存储的价值是什么按钮重新presents在第二次点击比较

To answer your first question, you can use a flag as suggested earlier or a counter and if the counter == say 2 then the click does whatever you need. If it doesn't then you store the value of what that Button represents to compare in the second click

其他的方法是将它们设置在循环，我假设你知道如何建立一个循环所以我会记住这简短

the other way would be to set them in a for loop, I assume you know how to set up a loop so I will keep this short

for (int i=0; i<buttons.size(); i++)
{
     ...
     button[i].setOnClickListener(ActivityName.this);
}

@Override
public void onClick(View v)
{
    int id = v.getId();
}

请确保你实施 OnClickListener（）

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