I’ve struggled for some time to get the PopupWindow to work on Android. For all of those who have trouble making it to work here is a short tutorial.
First, create an XML layout, name it popup_layout.xml and in the res/layout/ folder:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/popup_menu_root"
android:background="#FFFFFF"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button android:id="@+id/popup_menu_button1"
android:text="close"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<Button android:id="@+id/popup_menu_button2"
android:text="ok2"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<Button android:id="@+id/popup_menu_button3"
android:text="ok3"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
Here I have created a linear layout and put three buttons inside. So that the popup is visible I have made the background white.
Now to the code. You probably already have a class where you need to create a popup. You can declare it wherever you need. I needed to show the popup window after user clicks a button, so I made it class-level and declared in the beginning:
private PopupWindow pw;
Next in the appropriate onClickListener I create the PopupWindow and show it:
// get the instance of the LayoutInflater
LayoutInflater inflater = (LayoutInflater) PopupWindowClass.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// inflate our view from the corresponding XML file
View layout = inflater.inflate(R.layout.popup_menu, (ViewGroup)findViewById(R.id.popup_menu_root));
// create a 100px width and 200px height popup window
pw = new PopupWindow(layout, 100, 200, true);
// set actions to buttons we have in our popup
Button button1 = (Button)layout.findViewById(R.id.popup_menu_button1);
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View vv) {
// close the popup
pw.dismiss();
}
});
Button button2 = (Button)layout.findViewById(R.id.popup_menu_button2);
button2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View vv) {
Toast.makeText(PopupWindowClass.this, "Hello", Toast.LENGTH_LONG).show();
}
});
Button button3 = (Button)layout.findViewById(R.id.popup_menu_button3);
button3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View vv) {
finish();
}
});
// finally show the popup in the center of the window
pw.showAtLocation(layout, Gravity.CENTER, 0, 0);
Hope this helps you :-)