ScreenShots:
<resources>
<string name="app_name">Dialog with Multiple Choice</string>
<string-array name="ITEMS">
<item>Item1</item>
<item>Item2</item>
<item>Item3</item>
<item>Item4</item>
<item>Item5</item>
</string-array>
</resources>
activity_main.xml:<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"><Button android:id="@+id/button_dialogList" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Dialog List" /> <TextView android:id="@+id/textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="20dp" android:textSize="30sp" android:textStyle="bold" /> </LinearLayout>MainActivity.java:package com.ramsandroid.dialogwithmultiplechoice;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
ArrayList<Integer> selectedItems;
TextView textView;
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
selectedItems = new ArrayList<>();
textView = (TextView) findViewById(R.id.textview);
Button button_dialogList = (Button) findViewById(R.id.button_dialogList);
button_dialogList.setOnClickListener(this);
}
@Override public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("Select Item");
builder.setMultiChoiceItems(R.array.ITEMS, null, new DialogInterface.OnMultiChoiceClickListener() {
@Override public void onClick(DialogInterface dialog, int which, boolean isChecked) {
if (isChecked) {
selectedItems.add(which);
} elseif (selectedItems.contains(which)) {
selectedItems.remove(Integer.valueOf(which));
}
}
});
builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) {
for (Integer i : selectedItems) {
String[] ITEMS = getResources().getStringArray(R.array.ITEMS);
textView.append(ITEMS[i] + "\n");
}
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) {
selectedItems.clear();
}
});
builder.create().show();
}
}
