我在onClick中遇到错误,我设置的代码试图调用DialogFragment.
我在“show”上收到一条错误,说明“DialogFragment类型中的方法show(FragmentManager,String)不适用于参数(FragmentManager,String)”,并且“new Instance”上的错误表明“方法newInstance()未定义MyDialogFragment类型“
这是我的代码:
@OverrIDepublic VIEw onCreateVIEw(LayoutInflater inflater,VIEwGroup container,Bundle savedInstanceState){ final VIEw v = inflater.inflate(R.layout.image_detail_fragment,container,false); mImageVIEw = (RecyclingImageVIEw) v.findVIEwByID(R.ID.imageVIEw); mImageVIEw.setonClickListener(new VIEw.OnClickListener() { @OverrIDe public voID onClick(VIEw arg0) { //Here MyDialogFragment dialog = MyDialogFragment.newInstance(); dialog.show(getFragmentManager(),"fragmentDialog"); } }); return v;}
DialogFragment类:
import androID.app.AlertDialog;import androID.app.Dialog;import androID.app.DialogFragment;import androID.content.Context;import androID.content.DialogInterface;import androID.os.Bundle;class MyDialogFragment extends DialogFragment { Context mContext; public MyDialogFragment() { mContext = getActivity(); } @OverrIDe public Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(mContext); alertDialogBuilder.setTitle("Set Wallpaper?"); alertDialogBuilder.setMessage("Are you sure?"); //null should be your on click Listener alertDialogBuilder.setPositivebutton("OK",null); alertDialogBuilder.setNegativebutton("Cancel",new DialogInterface.OnClickListener() { @OverrIDe public voID onClick(DialogInterface dialog,int which) { dialog.dismiss(); } }); return alertDialogBuilder.create(); } public static MyDialogFragment newInstance() { MyDialogFragment = new MyDialogFragment; return f; }}解决方法 您没有名为newInstance的静态方法.在对话框片段中添加以下内容
public static MyDialogFragment newInstance() { MyDialogFragment f = new MyDialogFragment(); return f; }
您可以在文档中找到更多信息和示例
http://developer.android.com/reference/android/app/DialogFragment.html
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