私は値のリストを持っている方法を持っています:
/**
* 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");
}
このメソッドは、ImageButton
のonClick()で注入されます:
Android:onClick="getISO"
しかし、ラジオボタンを使用してダイアログでこのリストを表示する必要があります。おそらく、ダイアログで設定値がすでに選択されているはずです。それは可能ですか?
ボタンからshowRadioButtonDialog()
を呼び出します。
これは単なる例です。
private void showRadioButtonDialog() {
// custom dialog
final Dialog dialog = new Dialog(mActivity);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.radiobutton_dialog);
List<String> stringList=new ArrayList<>(); // here is list
for(int i=0;i<5;i++) {
stringList.add("RadioButton " + (i + 1));
}
RadioGroup rg = (RadioGroup) dialog.findViewById(R.id.radio_group);
for(int i=0;i<stringList.size();i++){
RadioButton rb=new RadioButton(mActivity); // dynamically creating RadioButton and adding to RadioGroup.
rb.setText(stringList.get(i));
rg.addView(rb);
}
dialog.show();
}
レイアウトビュー:radiobutton_dialog.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">
<RadioGroup
Android:id="@+id/radio_group"
Android:layout_width="wrap_content"
Android:layout_height="match_parent"
Android:layout_gravity="center_vertical"
Android:orientation="vertical">
</RadioGroup>
</LinearLayout>
注:ダイアログビューをカスタマイズできます(タイトル、メッセージなどの設定など)
編集:選択したRadioButton
の値を取得するには、setOnCheckedChangeListener
のRadioGroup
リスナーを次のように実装する必要があります。
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());
}
}
}
});
最良かつ簡単な方法......
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...
}
クリーンな方法は次のとおりです。
http://developer.Android.com/guide/topics/ui/dialogs.html
mSelectedItems = new ArrayList(); // Where we track the selected items
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Set the dialog title
builder.setTitle(R.string.pick_toppings)
// Specify the list array, the items to be selected by default (null for none),
// and the listener through which to receive callbacks when items are selected
.setMultiChoiceItems(R.array.toppings, null,
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which,
boolean isChecked) {
if (isChecked) {
// If the user checked the item, add it to the selected items
mSelectedItems.add(which);
} else if (mSelectedItems.contains(which)) {
// Else, if the item is already in the array, remove it
mSelectedItems.remove(Integer.valueOf(which));
}
}
})
// Set the action buttons
.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
// User clicked OK, so save the mSelectedItems results somewhere
// or return them to the component that opened the dialog
...
}
})
.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
...
}
});
return builder.create();
カスタムビューは必要ありません。
これは私のために働いた:
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();
これをチェックして。これは、CustomAdapterで使用する必要があるカスタム行dialog_row.xmlです。
<?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>
次に、onclickメソッドで:
@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();
}
sQLIteデータベースのデータを表示したい場合
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();
}
}
}
});
}