android PopupWindow demo

public class PopupwindowActivity extends Activity {

LinearLayout ll;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

ll = (LinearLayout) findViewById(R.id.container);

}

public void click(View view){

TextView tv = new TextView(this);

tv.setTextSize(20);

tv.setText("哥是弹出窗体");

tv.setTextColor(Color.RED);

//PopupWindow popupWindow = new PopupWindow(tv, 100, 100);

PopupWindow popupWindow = new PopupWindow(tv, 100, 100, true);

popupWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

popupWindow.showAtLocation(ll, Gravity.LEFT | Gravity.TOP, 50,100);

}

}