更改Android的布局的背景颜色 [英] change background color of the layout in Android

问题描述

我有一个简单的Andr​​oid应用程序，有3个按钮。当我点击1号按钮，我想改变布局的背景颜色（也就是现在的白...我想改变其他颜色，当我preSS的按钮）。我怎样才能做到这一点？

I have a simple Android application, with 3 buttons. When i click on the 1st button, i wanna change the background color of the layout (which is now white... i wanna change in other color, when i press the button). How can i do this?

在那个按钮，我有一个myClickHndler事件

On that button, i have a myClickHndler event

    public void myClickHandler(View view) {
    switch (view.getId()) {
    case R.id.Button01:
        text.setText("Button 1 was clicked");
        break;
    case R.id.Button03:
        //text.setText("Button 3 was clicked");
                    .................... // ?
        break;
    }
}

谢谢！

推荐答案

举一个编号为您的的LinearLayout 是这样的：

Give an Id to your LinearLayout like this:

<LinearLayout android:id="@+id/laidout"
        ...>

，然后从你的Java类说：

and then from your java class say:

...
case R.id.Button03:
//text.setText("Button 3 was clicked");
  .................... // ?
mlayout= findViewById(R.id.laidout);
// set the color 
mlayout.setBackgroundColor(Color.WHATEVER);
// you can use setBackgroundResource() and pass appropriate ID
// if you want a drawable bundled as resource in the background
mlayout.setBackgroundResource(R.drawable.background_img);
break;
...

：加code在评论请求的事

: added code for thing requested in comment

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