The only way to change the title divider color is to use Resources.getIdentifier
in combination with Window.findViewById
. The checkmark can be easily changed by calling AlertDialog.Builder.setSingleChoiceItems(ListAdapter, int, OnClickListener)
.
Here's an example:
Single choice item layout
: I generated your_radio_button
using Android Holo Colors.
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:checkMark="@drawable/your_radio_button"
android:ellipsize="marquee"
android:gravity="center_vertical"
android:minHeight="?android:attr/listPreferredItemHeightSmall"
android:paddingEnd="16dip"
android:paddingStart="16dip"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="?android:attr/textColorAlertDialogListItem" />
Implementation
final ListAdapter adapter = new ArrayAdapter<String>(this,
R.layout.select_dialog_singlechoice, android.R.id.text1, new String[] {
"Option 1", "Option 2"
});
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setCustomTitle(getLayoutInflater().inflate(R.layout.custom_alert_title, null));
builder.setSingleChoiceItems(adapter, -1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Do something
}
});
// Show the AlertDialog
final AlertDialog dialog = builder.show();
// Change the title divider
final Resources res = getResources();
final int titleDividerId = res.getIdentifier("titleDivider", "id", "android");
final View titleDivider = dialog.findViewById(titleDividerId);
titleDivider.setBackgroundColor(res.getColor(android.R.color.holo_orange_dark));
Results