Java 创建带有单选按钮列表的自定义对话框

我有一个方法，其中有一个值列表：

     /**
     * ISO
     * */
    public void getISO(View view) {
        // Open dialog with radio buttons
        List<String> supported_isos = preview.getSupportedISOs();
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(MainActivity.this);
        String current_iso = sharedPreferences.getString(MainActivity.getISOPreferenceKey(), "auto");

    }

---

但我需要在带有单选按钮的对话框中重新呈现此列表。可能已在对话框中选择了首选项值。。可以吗？

通过按钮调用

showRadioButtonDialog（）

这只是一个例子：

private void showRadioButtonDialog() {

 // custom dialog

  final Dialog dialog = new Dialog(this);
  dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
  dialog.setContentView(R.layout.dialog_layout);
  List<String> stringList=new ArrayList<>();  // here is list
      for(int i=0;i<2;i++) {
          if (i==0){
              stringList.add("Number Mode");
          }else {
              stringList.add("Character Mode");
          }

      }

      RadioGroup rg = (RadioGroup) dialog.findViewById(R.id.radioGroup);

      for(int i=0;i<stringList.size();i++){
            RadioButton rb=new RadioButton(this); // dynamically creating RadioButton and adding to RadioGroup.
            rb.setText(stringList.get(i));
            rg.addView(rb);
      }
}

注意：您可以自定义对话框视图（如设置标题、消息等）

编辑： 要检索所选的

单选按钮的值

，您必须为您的

放射组实现
设置checkedChangeListener
监听器，如下所示：

 rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                 int childCount = group.getChildCount();
                 for (int x = 0; x < childCount; x++) {
                    RadioButton btn = (RadioButton) group.getChildAt(x);
                    if (btn.getId() == checkedId) {
                         Log.e("selected RadioButton->",btn.getText().toString());

                    }
                 }
            }
        });

rg.setOnCheckedChangeListener（新的RadioGroup.OnCheckedChangeListener（）{
@凌驾
检查更改后的公共无效（RadioGroup组，int checkedId）{
int childCount=group.getChildCount（）；
对于（int x=0；x”，btn.getText（）.toString（））；
}
}
}
});
检查此项。
这是应在CustomAdapter中使用的自定义行对话框\u row.xml：

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical" android:layout_width="match_parent"
      android:layout_height="match_parent">

    <RadioButton
       android:id="@+id/list"
       android:layout_width="match_parent"
       android:layout_height="wrap_content" />
    </LinearLayout>



然后在onclick方法中：

@Override
public void onClick(View arg0) {

    // custom dialog
    final Dialog dialog = new Dialog(context);
    dialog.setContentView(R.layout.custom_layout); //Your custom layout
    dialog.setTitle("Title...");


    Listview listview= (ListView) dialog.findViewById(R.id.listview);

    CustomAdapter adapter=new CustomAdapter(context,your_list);
    listview.setadapter(adapter);
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        //Do something

        }
    });

    dialog.show();
}

@覆盖
公共void onClick（视图arg0）{
//自定义对话框
最终对话框=新对话框（上下文）；
dialog.setContentView（R.layout.custom_layout）；//您的自定义布局
对话框。设置标题（“标题…”）；
Listview=（Listview）dialog.findViewById（R.id.Listview）；
CustomAdapter=新的CustomAdapter（上下文，您的_列表）；
setadapter（适配器）；
setOnItemClickListener（新的AdapterView.OnItemClickListener（）{
@凌驾
public void onItemClick（AdapterView父对象、视图、整型位置、长id）{
//做点什么
}
});
dialog.show（）；
}

清洁的方法是这样的：


摘录自（添加持久的多选或单选列表）
了解

无需自定义视图。
最佳且简单的方法

void dialog(){

        AlertDialog.Builder alt_bld = new AlertDialog.Builder(this);
        //alt_bld.setIcon(R.drawable.icon);
        alt_bld.setTitle("Select a Group Name");
        alt_bld.setSingleChoiceItems(grpname, -1, new DialogInterface
                .OnClickListener() {
            public void onClick(DialogInterface dialog, int item) {
                Toast.makeText(getApplicationContext(),
                        "Group Name = "+grpname[item], Toast.LENGTH_SHORT).show();
                dialog.dismiss();// dismiss the alertbox after chose option

            }
        });
        AlertDialog alert = alt_bld.create();
        alert.show();


///// grpname is a array where data is stored... 


    }

当您想要显示来自SQLIte数据库的数据时

private void showRadioButtonDialog() {

    // custom dialog
    final Dialog dialog = new Dialog(this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.radiobutton_dialog);
    List<String> stringList=new ArrayList<>();  // here is list 

    if (cursor.moveToFirst()) {
        do {
            String a=( cursor.getString(0).toString());
            String b=(cursor.getString(1).toString());
            String c=(cursor.getString(2).toString());
            String d=(cursor.getString(3).toString());
            stringList.add(d);
        } while (cursor.moveToNext());        
    }   

    RadioGroup rg = (RadioGroup) dialog.findViewById(R.id.radio_group);

    for(int i=0;i<stringList.size();i++) {
        RadioButton rb=new RadioButton(this); // dynamically creating RadioButton and adding to RadioGroup.
        rb.setText(stringList.get(i));
        rg.addView(rb);
    }

    dialog.show();

    rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

         @Override
         public void onCheckedChanged(RadioGroup group, int checkedId) {
             int childCount = group.getChildCount();
             for (int x = 0; x < childCount; x++) {
                 RadioButton btn = (RadioButton) group.getChildAt(x);
                 if (btn.getId() == checkedId) {
                     Toast.makeText(getApplicationContext(), btn.getText().toString(), Toast.LENGTH_SHORT).show();
                 }
             }
         }
     });
}

private void showRadioButtonDialog（）{
//自定义对话框
最终对话框=新对话框（本）；
对话框.requestWindowFeature（窗口.FEATURE\u无\u标题）；
setContentView（R.layout.radiobutton_对话框）；
List stringList=new ArrayList（）；//下面是列表
if（cursor.moveToFirst（））{
做{
字符串a=（cursor.getString（0.toString（））；
字符串b=（cursor.getString（1.toString（））；
字符串c=（cursor.getString（2.toString（））；
字符串d=（cursor.getString（3.toString（））；
增加（d）；
}while（cursor.moveToNext（））；
}   
RadioGroup rg=（RadioGroup）dialog.findViewById（R.id.radio\u组）；
对于（int i=0；i这对我来说很有效：

final CharSequence[] items = {"Option-1", "Option-2", "Option-3", "Option-4"};

AlertDialog.Builder builder = new AlertDialog.Builder(ShowDialog.this);
builder.setTitle("Alert Dialog with ListView and Radio button");
builder.setIcon(R.drawable.icon);
builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int item) {
 Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show();
    }
});

builder.setPositiveButton("Yes",
 new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int id) {
   Toast.makeText(ShowDialog.this, "Success", Toast.LENGTH_SHORT).show();
  }
 });
builder.setNegativeButton("No",
 new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int id) {
   Toast.makeText(ShowDialog.this, "Fail", Toast.LENGTH_SHORT).show();
  }
 });
AlertDialog alert = builder.create();
alert.show();

Kotlin版本：

fun dialog() {
    val options = arrayOf("option1", "option2")
    var selectedItem = 0
    val builder = AlertDialog.Builder(this)
    builder.setTitle("Select an option")
    builder.setSingleChoiceItems(options
            , 0, { dialogInterface: DialogInterface, item: Int ->
        selectedItem = item
    })
    builder.setPositiveButton(R.string.accept, { dialogInterface: DialogInterface, p1: Int ->
        Toast.makeText(getApplicationContext(),
                "selected item = " + options[selectedItem], Toast.LENGTH_SHORT).show();
        dialogInterface.dismiss()
    })
    builder.setNegativeButton(R.string.cancel, { dialogInterface: DialogInterface, p1: Int ->
        dialogInterface.dismiss()
    })
    builder.create()
    builder.show();
}

这是可能的，一切都取决于你如何填充对话框。创建一个对话框并为其设置自定义视图。你能给我一个使用我的列表的示例吗？从这里开始@如果你正在寻找一个不需要自定义视图的更简单的解决方案，请查看我的解决方案，它将为你提供与标准android警报对话框相同的体验，如果是的话您不想做超出此范围的事情。我想说，对于他的用例来说，创建自定义对话框似乎有点过火。但肯定还是有可能的。检查编辑以检索所选单选按钮的值。这不是自定义的，它是带有单选项的默认警报对话框。如果您想要“确认”按钮，只需将其正常添加到带有eg
setPositiveButton
的对话框，并从上述代码中删除
dialog.disease（）
。作者提到了自定义
private void showRadioButtonDialog() {

    // custom dialog
    final Dialog dialog = new Dialog(this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.radiobutton_dialog);
    List<String> stringList=new ArrayList<>();  // here is list 

    if (cursor.moveToFirst()) {
        do {
            String a=( cursor.getString(0).toString());
            String b=(cursor.getString(1).toString());
            String c=(cursor.getString(2).toString());
            String d=(cursor.getString(3).toString());
            stringList.add(d);
        } while (cursor.moveToNext());        
    }   

    RadioGroup rg = (RadioGroup) dialog.findViewById(R.id.radio_group);

    for(int i=0;i<stringList.size();i++) {
        RadioButton rb=new RadioButton(this); // dynamically creating RadioButton and adding to RadioGroup.
        rb.setText(stringList.get(i));
        rg.addView(rb);
    }

    dialog.show();

    rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

         @Override
         public void onCheckedChanged(RadioGroup group, int checkedId) {
             int childCount = group.getChildCount();
             for (int x = 0; x < childCount; x++) {
                 RadioButton btn = (RadioButton) group.getChildAt(x);
                 if (btn.getId() == checkedId) {
                     Toast.makeText(getApplicationContext(), btn.getText().toString(), Toast.LENGTH_SHORT).show();
                 }
             }
         }
     });
}

final CharSequence[] items = {"Option-1", "Option-2", "Option-3", "Option-4"};

AlertDialog.Builder builder = new AlertDialog.Builder(ShowDialog.this);
builder.setTitle("Alert Dialog with ListView and Radio button");
builder.setIcon(R.drawable.icon);
builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int item) {
 Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show();
    }
});

builder.setPositiveButton("Yes",
 new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int id) {
   Toast.makeText(ShowDialog.this, "Success", Toast.LENGTH_SHORT).show();
  }
 });
builder.setNegativeButton("No",
 new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int id) {
   Toast.makeText(ShowDialog.this, "Fail", Toast.LENGTH_SHORT).show();
  }
 });
AlertDialog alert = builder.create();
alert.show();

fun dialog() {
    val options = arrayOf("option1", "option2")
    var selectedItem = 0
    val builder = AlertDialog.Builder(this)
    builder.setTitle("Select an option")
    builder.setSingleChoiceItems(options
            , 0, { dialogInterface: DialogInterface, item: Int ->
        selectedItem = item
    })
    builder.setPositiveButton(R.string.accept, { dialogInterface: DialogInterface, p1: Int ->
        Toast.makeText(getApplicationContext(),
                "selected item = " + options[selectedItem], Toast.LENGTH_SHORT).show();
        dialogInterface.dismiss()
    })
    builder.setNegativeButton(R.string.cancel, { dialogInterface: DialogInterface, p1: Int ->
        dialogInterface.dismiss()
    })
    builder.create()
    builder.show();
}