show the popwindow on view's top - Android User Interface

Android examples for User Interface:PopupMenu

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Description

show the popwindow on view's top

Demo Code


import android.content.Context;
import android.graphics.drawable.BitmapDrawable;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.PopupWindow;

public class Main{
    /**/*from w ww. ja  v a 2 s  . c o  m*/
     * show the popwindow on view's top
     *
     * @param context
     * @param clickView the view click to show popwidow
     * @param contentView  the layout view be shown
     */
    public static PopupWindow showPopWindowTop(Context context,
            View clickView, View contentView) {
        return showPopWindow(context, clickView, contentView, 0, 1);
    }
    /**
     * show the popwindow on view's top
     *
     * @param context
     * @param clickView the view click to show popwidow
     * @param layoutId  the layout resid be shown
     */
    public static PopupWindow showPopWindowTop(Context context,
            View clickView, int layoutId) {
        return showPopWindow(context, clickView, null, layoutId, 1);
    }
    
    private static PopupWindow showPopWindow(Context context,
            View clickView, View contentView, int layoutId, int location) {
        PopupWindow mPopupWindows = new PopupWindow(context);
        View layout = null;
        if (contentView != null) {
            layout = contentView;
        } else if (layoutId > 0) {
            layout = LayoutInflater.from(context).inflate(layoutId, null);
        } else {
            throw new RuntimeException(
                    "the contentView should not be null or the layoutId > 0 is request");
        }
        mPopupWindows.setContentView(layout);

        mPopupWindows.setTouchable(true);
        mPopupWindows.setFocusable(true);
        mPopupWindows.setWidth(WindowManager.LayoutParams.WRAP_CONTENT);
        mPopupWindows.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
        mPopupWindows.setBackgroundDrawable(new BitmapDrawable());

        if (location == 0) {
            // bottom
            mPopupWindows.showAsDropDown(clickView);
        } else if (location == 1) {
            // top
            int[] local = new int[2];
            clickView.getLocationOnScreen(local);
            mPopupWindows.showAtLocation(clickView, Gravity.NO_GRAVITY,
                    local[0], local[1]
                            - mPopupWindows.getContentView()
                                    .getMeasuredHeight());
        } else if (location == 2) {
            // left
            int[] local = new int[2];
            clickView.getLocationOnScreen(local);
            mPopupWindows.showAtLocation(clickView, Gravity.NO_GRAVITY,
                    local[0]
                            - mPopupWindows.getContentView()
                                    .getMeasuredWidth(), local[1]);
        } else if (location == 3) {
            // right
            int[] local = new int[2];
            clickView.getLocationOnScreen(local);
            mPopupWindows.showAtLocation(clickView, Gravity.NO_GRAVITY,
                    local[0] + clickView.getMeasuredWidth(), local[1]);
        }
        return mPopupWindows;
    }
}

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