Android 自定义dialog出现的位置

跟 https://www.cnblogs.com/guochangxin/p/11457537.html 配套

1、定义一个dialog的类

public class OtherDialog {
    private View view;

    public Dialog showOtherDialog(Context context) {
        //1、使用Dialog、设置style
        final Dialog dialog = new Dialog(context, R.style.DialogTheme);
        //2、设置布局
        view = View.inflate(context, R.layout.news_bottom_dialog, null);
        dialog.setContentView(view);

        Window window = dialog.getWindow();
        //设置弹出位置
        window.setGravity(Gravity.TOP);

        int matchParent = ViewGroup.LayoutParams.MATCH_PARENT;//父布局的宽度

        Window dialogWindow = dialog.getWindow();
        dialogWindow.setGravity(Gravity.TOP | Gravity.RIGHT);
        WindowManager.LayoutParams lp = dialogWindow.getAttributes();
        lp.width = matchParent;
        lp.height = matchParent;
        lp.x = matchParent; 
        lp.y = 300;  //设置出现的高度，距离顶部
        window.setAttributes(lp);

        //设置弹出动画
        //     window.setWindowAnimations(R.style.main_menu_animStyle);
        //设置对话框大小
        window.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        dialog.show();

        return dialog;


    }
}

2、使用

private OtherDialog otherDialog=new OtherDialog();//实例化

otherDialog.showOtherDialog(getContext());