另一个＆QUOT;不能使静态参考...＆QUOT;题 [英] Another "Cannot make static reference..." Question

问题描述

我试图写有一些意见，认为设置的意见（是不是静态的，因为它必须利用getContentResolver）一fillView（）方法的活动，这使得一个随机选择从光标，然后一个静态方法运行fillView（）方法。

我不得不因fillView不是静态的，pickRandom是静态的这个问题，所以我试图initialzize的类的实例，但现在它崩溃就行了instance.fillView（）;

样code以下。任何帮助将是AP preciated。或许有一个更容易实现什么，我试图做的方法。

谢谢，
乔希

 公共类MyView的扩展活动实现OnClickListener {
@覆盖
   公共无效的onCreate（捆绑savedInstanceState）{
    super.onCreate（savedInstanceState）;    requestWindowFeature（Window.FEATURE_NO_TITLE）;
    的setContentView（R.layout.myView）;fillView（）;    }
公共无效fillView（）{    //创建视图，运行光标和适用成果创建的视图}公共静态无效pickRandom（）{
          //运行光标，随意挑选进入，接下来我想申请的结果
          //观点，所以我跑...        MyView的V =新MyView的（）;
        v.fillView（）;        }
 

解决方案

请静态实例变量，并在OnCreate中设置：

 私有静态MyView的实例;
 

在OnCreate（）

 实例=这一点;
 

静态pickrandom（）

  instance.fillView（）;
 

I am trying to write an Activity that has some views, a fillView() method that sets the views (which is not static because it must utilize getContentResolver), and a static method that makes a random choice from a cursor and then runs the fillView() method.

I had problems with this due to fillView not being static and pickRandom being static, so I tried to initialzize an instance of the class, but now it crashes on the line instance.fillView();

Sample code below. Any help would be appreciated. Perhaps there is a much easier way to accomplish what I am trying to do.

Thanks, Josh

public class myView extends Activity implements OnClickListener {


@Override 
   public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.myView);

fillView();

    }


public void fillView(){

    //creates views, runs cursor and applies results to the view created

}

public static void pickRandom() {   


          // runs cursor, picks random entry, next I want to apply the result to 
          //  view, so I run...

        myView v = new myView();
        v.fillView();

        }

解决方案

Make a static instance variable and set in in oncreate:

private static myView instance;

oncreate()

instance = this;

static pickrandom()

instance.fillView();

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