allprojects {
	repositories {
		maven { url 'https://jitpack.io' }
	}
}

dependencies {
        compile 'com.github.MdFarhanRaja:SearchableSpinner:2.0'
}

public class MainActivity extends AppCompatActivity {
ArrayList<String> items=new ArrayList<>();
SpinnerDialog spinnerDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    final TextView selectedItems=(TextView)findViewById(R.id.txt);

    items.add("Mumbai");
    items.add("Delhi");
    items.add("Bengaluru");
    items.add("Hyderabad");
    items.add("Ahmedabad");
    items.add("Chennai");
    items.add("Kolkata");
    items.add("Surat");
    items.add("Pune");
    items.add("Jaipur");
    items.add("Lucknow");
    items.add("Kanpur");


    spinnerDialog=new SpinnerDialog(MainActivity.this,items,"Select or Search City","Close Button Text");// With No Animation
spinnerDialog=new SpinnerDialog(MainActivity.this,items,"Select or Search City",R.style.DialogAnimations_SmileWindow,"Close Button Text");// With 	Animation

spinnerDialog.setCancellable(true); // for cancellable
spinnerDialog.setShowKeyboard(false);// for open keyboard by default


    spinnerDialog.bindOnSpinerListener(new OnSpinerItemClick() {
        @Override
        public void onClick(String item, int position) {
            Toast.makeText(MainActivity.this, item + "  " + position+"", Toast.LENGTH_SHORT).show();
            selectedItems.setText(item + " Position: " + position);
        }
    });
    findViewById(R.id.show).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            spinnerDialog.showSpinerDialog();
        }
    });
}
}

<style name="DialogAnimations" />
	<style name="DialogAnimations.SmileWindow">
    <item name="android:windowEnterAnimation">@anim/slide_in_bottom</item>
    <item name="android:windowExitAnimation">@anim/slide_out_top</item>
	</style>