我正在尝试获取我添加到广播组的单选按钮的值,并将其添加到线性布局,然后从我的活动中调用该类。这是我的代码:
MultiChoice.java
public class MultipleChoice {
Context context;
List<String> choice_values;
String hint;
public MultipleChoice (Context context, String hint, List<String> choice_value_array){
choice_values = new ArrayList<String>();
this.context = context;
this.choice_values = choice_value_array;
this.hint = hint;
}
public View createRadioGroup(){
LinearLayout llContainer = new LinearLayout(context);
llContainer.setOrientation(LinearLayout.VERTICAL);
llContainer.addView(hintTextView());
llContainer.addView(radioButtons());
return llContainer;
}
private TextView hintTextView() {
// TODO Auto-generated method stub
TextView tvHint = new TextView(context);
tvHint.setText(hint);
return tvHint;
}
private RadioGroup radioButtons() {
// TODO Auto-generated method stub
RadioGroup rbGroup = new RadioGroup(context);
rbGroup.setOrientation(RadioGroup.VERTICAL);
for (String value : choice_values){
RadioButton rbValue = new RadioButton(context);
rbGroup.addView(rbValue);
rbValue.setText(value);
}
return rbGroup;
}
}
这就是我在活动中创建控件的方法:
LinearLayout template_container = (LinearLayout) findViewById(R.id.llTemplate);
MultipleChoice mcControl = new MultipleChoice(getApplicationContext(), parts[0], choices);
control = mcControl.createRadioGroup();
template_container.addView(control);
我尝试过这样的事情,但我不确定我是否正在尝试正确的方法,因为它不起作用:
View child = template_container.getChildAt(i);
LinearLayout v = ((LinearLayout)child);
View rgView = v.getChildAt(1);
RadioGroup rg = ((RadioGroup)rgView);
添加RadioGroup
并显示正常。我想要做的就是获取所选单选按钮的值。提前谢谢!
修改
这就是我获取EditText
的值的方法,它可以正常工作。
我获取控件并将其添加到包含Views的List中,然后我用它来执行此操作以在视图包含EditText
时找到值:
String text = ((EditText)view).getText().toString().trim();
答案 0 :(得分:0)
这可能真的很有帮助: http://developer.android.com/guide/topics/ui/controls/radiobutton.html#HandlingEvents
您可能需要在单选按钮上添加id
。
答案 1 :(得分:0)
您可以以编程方式在单选按钮上设置ID。请在这里查看
Android: View.setID(int id) programmatically - how to avoid ID conflicts?
然后使用findviewbyId获取单选按钮
答案 2 :(得分:0)
你可以试试这个: 首先使用以下方法向radiogroup添加id: 的机器人:ID = “@ + ID / RadioGroup中”强>
RadioGroup rbGroup = (RadioGroup)findViewById(R.id.radiogroup);
int RadioButtonId=rbGroup.getCheckedRadioButtonId();
View radioButton = rbGroup.findViewById(RadioButtonId);
String = Integer.toString(rbGroup.indexOfChild(radioButton)+1);
您还可以使用以下方式以编程方式添加ID:
View.setId(int id);
答案 3 :(得分:0)
我通过在创建时向单选按钮添加onCheckChanged侦听器来解决问题,然后将所选值保存到共享首选项。当我需要这些值时,我通过迭代我用作共享首选项中的键的ID来获得所有共享首选项。我的代码:
private RadioGroup radioButtons(final int radio_id) {
// TODO Auto-generated method stub
RadioGroup rbGroup = new RadioGroup(context);
rbGroup.setOrientation(RadioGroup.VERTICAL);
for (final String value : choice_values) {
RadioButton rbValue = new RadioButton(context);
rbGroup.addView(rbValue);
rbValue.setText(value);
rbValue.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton arg0, boolean arg1) {
// TODO Auto-generated method stub
savePreferences("" + radio_id, value);
}
});
}
return rbGroup;
}
private void savePreferences(String key, String value) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
Editor editor = sharedPreferences.edit();
editor.putString(key, value);
editor.commit();
}
获得价值观:
int radio_check = 0;
for (View view : addedControls) {
String entered_value = getControlValue(view, radio_check);
radio_check++;
}
在我的getValue()方法中:
text = loadSavedPreferences("" + (radio_check));
LoadPrefs方法:
private String loadSavedPreferences(String key) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
String name = sharedPreferences.getString(key, "Default");
return name;
}