//在dialog.show()之后调用publicstaticvoidsetDialogWindowAttr(Dialogdlg,Contextctx){Windowwindow=dlg.getWindow();WindowManager.LayoutParamslp=window.getAttributes();lp.gravity=Gravity.CENTER;lp.width=LayoutParams.WRAP_CONTENT;//宽高可设置具体大小lp.height=LayoutParams.WRAP_CONTENT;dlg.getWindow().setAttributes(lp);}