Question

我正在研究如何在警报对话框中添加一个arraylist。当我调用alertdialog.setItems我得到一个无法解决此方法错误。任何人都可以看看并引导我如何解决这个问题？提前谢谢。

代码：

if(arrayListBluetoothDevices.size()<1) // this checks if the size of bluetooth device is 0,then add the
{                                           // device to the arraylist.
    detectedAdapter.add(device.getName()+"\n"+device.getAddress());
    arrayListBluetoothDevices.add(device);
    final CharSequence[] items2 = {"This is here just to figure out how to get setItems to call properly"};

    AlertDialog ad = new AlertDialog.Builder(context).create();
    ad.setTitle("Pop up the found devices here");
    ad.setItems(items2, null);
    ad.setButton("Somehow set this to work when the arraylist is pressed", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
            //Do stuff here for OK The bottom button
        }
    });
    ad.show();
    detectedAdapter.notifyDataSetChanged();
}

Answer 1

我看到了问题。在Android文档中，您正在创建AlertDialog并将其定义为AlertDialog.Builder，但setItems（）方法仅在AlertDialog.Builder上有效。我会定义＆＃39; ad＆＃39;作为AlertDialog.Builder，然后从构建器创建一个AlertDialog并显示如下：

if(arrayListBluetoothDevices.size()<1) // this checks if the size of bluetooth device is 0,then add the
            {                                           // device to the arraylist.
                detectedAdapter.add(device.getName()+"\n"+device.getAddress());
                arrayListBluetoothDevices.add(device);
                final CharSequence[] items2 = {"This is here just to figure out how to get setItems to call properly"};

                AlertDialog.Builder adb = new AlertDialog.Builder(context).create();
                adb.setTitle("Pop up the found devices here");
                adb.setItems(items2, null);
                AlertDialog ad = adb.create();
                ad.setButton("Somehow set this to work when the arraylist is pressed", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        //Do stuff here for OK The bottom button
                    }
                });
                ad.show();
                detectedAdapter.notifyDataSetChanged();
            }

阅读文档了解详情：AlertDialog.Builder，AlertDialog

无法解析方法setItems android警告对话框

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