在Android中单击ImageView时显示FC错误

单击

imageview

后，我想在

imageview

中显示图像。我使用片段来显示内容，我需要在

对话框中显示大图像。但是当点击
ImageView
show me FC error时

我的片段代码：

public class root_mobile_fragment extends Fragment {

    Bundle savedInstanceState;

    private CardView mobile_dl;
    private ImageView mobile_iamge1;
    Context context;

    @Override
    public View onCreateView(LayoutInflater inflater,
                             ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.root_mobile_xml, container, false);

        mobile_dl = (CardView) view.findViewById(R.id.mobile_adApp);
        mobile_dl.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent browserIntent = new Intent(Intent.ACTION_VIEW,
                        Uri.parse("https://soft-mgyun-com.qcloudcdn.com/files/products/romastersu/2075/2016/70/RomasterSu_3.0.0_160104_2075.apk"));
                startActivity(browserIntent);
            }
        });

        mobile_iamge1 = (ImageView) view.findViewById(R.id.mobile_root_image1);
        mobile_iamge1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final Dialog dialog = new Dialog(getActivity());

                LayoutInflater inflater2 = LayoutInflater.from(getActivity());
                View newView = (View) inflater2.inflate(R.layout.image_dialog, null);

                ImageView image_2 = (ImageView) newView.findViewById(R.id.mobile_root_image1);
                image_2.setImageResource(R.drawable.iroot_1);

                dialog.show();
            }
        });

        return view;
    }
}

图像布局XML:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/mobile_image1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_gravity="center"
        android:layout_margin="5dp"
        android:adjustViewBounds="true"
        android:background="@color/white"
        android:foreground="?android:attr/selectableItemBackground">

        <ImageView
            android:id="@+id/image_dialog_big"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:adjustViewBounds="true" />

    </android.support.v7.widget.CardView>

</RelativeLayout>

我怎样才能修好它？tnx all我认为您在对话框中使用了错误的
id
作为
ImageView

你有

    <ImageView
        android:id="@+id/image_dialog_big"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:adjustViewBounds="true" />



在xml中，但您正在java代码中使用
R.id.mobile\u root\u image1
访问
ImageView
，这会导致
NullPointerException
，正如您在logcat输出中看到的那样。
改变

ImageView image\u 2=（ImageView）newView.findViewById（R.id.mobile\u root\u image1）

到

ImageView image\u 2=（ImageView）newView.findviewbyd（R.id.image\u对话框\u大）
在活动中替换此行

mobile_iamge1 = (ImageView) view.findViewById(R.id.mobile_root_image1);

与

使用此选项显示对话框

在你的舌头里试试这个

final Dialog dialog = new Dialog(getActivity());

            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            dialog.setContentView(R.layout.image_dialog);
            ImageView image_2 =(ImageView) dialog.findViewById(R.id.mobile_root_image1);

            image_2.setImageResource(R.drawable.iroot_1);


            });
            dialog.show();

并确保image_dialog xml文件包含mobile_root_image1作为图像视图的ID，如何修复它？你能给我发个真实的代码来修复它吗？（fekr konam shomam farsi zaban Hastin，Mammon misham komak koni chon vaqean niaz daram）我亲爱的朋友。没关系。（aslan havasam nabood，bade inke goftin raftam didam che eshtebahe Sadei karde boodam.mitoonam ba shoma dar ertebat basham？）欢迎您：）（哈特曼，地址e电子邮件e man To个人资料我有）
mobile_iamge1 = (ImageView) view.findViewById(R.id.image_dialog_big);

final Dialog dialog = new Dialog(getActivity());

            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            dialog.setContentView(R.layout.image_dialog);
            ImageView image_2 =(ImageView) dialog.findViewById(R.id.mobile_root_image1);

            image_2.setImageResource(R.drawable.iroot_1);


            });
            dialog.show();