Question

我可以修改我的第一个微调器，但不知道如何在java中执行第二个微调器。这是我正在尝试的，当我启动活动时，我得到没有明显错误但我的apk fc是。当你在相同的布局和相同的重要性上覆盖两件事时，有人可以帮助我解决java代码的问题吗？提前致谢。（现在回到寻找一个例子）

package com.wbhome.mytrial;

import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

public class m5isoActivity extends m5Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {    
        super.onCreate(savedInstanceState);    
        setContentView(R.layout.scores);

        Spinner localSpinner = (Spinner)findViewById(R.id.iso_pbar_spinner);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.iso_pbar_list, R.layout.my_normal_spinner_style);    
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);    

        localSpinner.setAdapter(adapter);
        }

        {   
        Spinner localSpinner = (Spinner)findViewById(R.id.iso_sp_spinner);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.iso_sp_list, R.layout.my_normal_spinner_style);    
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);    

        localSpinner.setAdapter(adapter);}

    }

Answer 1

我不认为你的编译器工作，它应该指向红色警告（错误），因为你正在为ArrayAdapter创建两个具有相同名称和相同内容的Spinners。至少改变变量的名称。

Answer 2

不要使用初始化程序块！排列您的{和}，以便了解您的方法，代码块和类的开始和结束位置。

public class m5isoActivity extends m5Activity {//start of class

    @Override
    public void onCreate(Bundle savedInstanceState) {    //start of method
        super.onCreate(savedInstanceState);    
        setContentView(R.layout.scores);

        Spinner localSpinner = (Spinner)findViewById(R.id.iso_pbar_spinner);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.iso_pbar_list, R.layout.my_normal_spinner_style);    
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);    

        localSpinner.setAdapter(adapter);
        } //onCreate method ends here

        {   //following code is a initalizer block, 
            //you should move this into a method
        Spinner localSpinner = (Spinner)findViewById(R.id.iso_sp_spinner);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.iso_sp_list, R.layout.my_normal_spinner_style);    
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);    

        localSpinner.setAdapter(adapter);}//end of initializer block

    }//end of class

Answer 3

我只是做了很多他的希望，这有帮助

Spinner m1ssspinner = (Spinner)findViewById(R.id.m1_ss_spinner);        
ArrayAdapter<CharSequence> m1ssadapter = ArrayAdapter.createFromResource(this, R.array.m1_ss_list, R.layout.my_normal_spinner_style);            
m1ssadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
m1ssspinner.setAdapter(m1ssadapter); 

Spinner m1sqs1spinner = (Spinner)findViewById(R.id.m1_sqs1_spinner);        
ArrayAdapter<CharSequence> m1sqs1adapter = ArrayAdapter.createFromResource(this, R.array.m1_sqs1_list, R.layout.my_normal_spinner_style);            
m1sqs1adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);            
m1sqs1spinner.setAdapter(m1sqs1adapter);

java代码在同一布局和活动中覆盖两个微调器？

3 个答案: