弹窗item选择

----------
final String[] buyOrhangStr = new String[] { "市价买入", "委托买入" }; // 钞汇标识
Dialog alertDialog = new AlertDialog.Builder(this).setItems(
buyOrhangStr, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
tvbuyOrhang.setText(buyOrhangStr[which]);
if (which == 0) {
buyOrhang = 0;
llNormalBuyContent.setVisibility(View.VISIBLE);
llTrustContent.setVisibility(View.GONE);
} else {
llNormalBuyContent.setVisibility(View.GONE);
llTrustContent.setVisibility(View.VISIBLE);
buyOrhang = 1;
}
}
}).create();
alertDialog.setCanceledOnTouchOutside(true);
alertDialog.show();