Java 无法将android.support.v7.widget.AppCompatImageView强制转换为android.view.ViewGroup
我正在用相机拍照,将它们作为位图添加到ArrayList中。我有一个显示拍摄图像的recyclerView。我想有一个alertdialog,显示点击的图像和删除选项。我在将自定义布局设置为AlertDialog时遇到问题。当我点击图片时,应用程序崩溃并显示错误 java.lang.ClassCastException:android.support.v7.widget.AppCompatImageView无法强制转换为android.view.ViewGroup 错误指向这行代码 View ViewInfluded=LayoutFlater.from(View.getContext()).Influde(R.layout.dialog_image,(视图组)视图,false); imageDialog.setView(视图) 但我不确定我该怎么办。我试图将(视图组)更改为其他内容,但没有成功 Adapter.javaJava 无法将android.support.v7.widget.AppCompatImageView强制转换为android.view.ViewGroup,java,android,android-alertdialog,android-recyclerview,Java,Android,Android Alertdialog,Android Recyclerview,我正在用相机拍照,将它们作为位图添加到ArrayList中。我有一个显示拍摄图像的recyclerView。我想有一个alertdialog,显示点击的图像和删除选项。我在将自定义布局设置为AlertDialog时遇到问题。当我点击图片时,应用程序崩溃并显示错误 java.lang.ClassCastException:android.support.v7.widget.AppCompatImageView无法强制转换为android.view.ViewGroup 错误指向这行代码 View V
public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder> {
private List<Bitmap> fotky;
private Bitmap foto;
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.recycler_view_item, parent, false);
return new ViewHolder(v);
}
@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
foto = fotky.get(position);
holder.photo.setImageBitmap(foto);
holder.photo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder imageDialog = new AlertDialog.Builder(view.getContext());
imageDialog.setTitle("Image");
View viewInflated = LayoutInflater.from(view.getContext()).inflate(R.layout.dialog_image, (ViewGroup) view,false);
imageDialog.setView(viewInflated);
ImageView image = viewInflated.findViewById(R.id.fotka);
image.setImageBitmap(foto);
imageDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.cancel();
}
});
imageDialog.setNegativeButton("delete", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
remove(position);
}
});
imageDialog.show();
//TODO tady ukázat full image s možností smazání
//remove(position);
}
});
}
public void add(int position, Bitmap item) {
fotky.add(position, item);
notifyItemInserted(position);
}
public void remove(int position) {
fotky.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, fotky.size());
}
public Adapter(List<Bitmap> myDataset) {
fotky = myDataset;
}
@Override
public int getItemCount() {
return fotky.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public ImageView photo;
public ViewHolder(View itemView) {
super(itemView);
photo = itemView.findViewById(R.id.imageView);
}
}
}
公共类适配器扩展了RecyclerView.Adapter{
私人名单;
私有位图foto;
@凌驾
public ViewHolder onCreateViewHolder(视图组父级,int-viewType){
视图v=LayoutInflater.from(parent.getContext())
.充气(R.layout.recycler\u view\u项目,父项,错误);
返回新的视图持有者(v);
}
@凌驾
公共无效onBindViewHolder(ViewHolder,最终int位置){
foto=fotky.get(位置);
holder.photo.setImageBitmap(foto);
holder.photo.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
AlertDialog.Builder imageDialog=新建AlertDialog.Builder(view.getContext());
imageDialog.setTitle(“图像”);
View ViewInfluded=LayoutFlater.from(View.getContext()).Influde(R.layout.dialog_image,(视图组)视图,false);
imageDialog.setView(视图);
ImageView image=VIEWIMPLETED.findViewById(R.id.fotka);
设置图像位图(foto);
imageDialog.setPositiveButton(“确定”,新的DialogInterface.OnClickListener(){
@凌驾
公共void onClick(DialogInterface,inti){
dialogInterface.cancel();
}
});
imageDialog.setNegativeButton(“删除”,新建DialogInterface.OnClickListener()){
@凌驾
公共void onClick(DialogInterface,inti){
移除(位置);
}
});
imageDialog.show();
//TODO tady ukázat完整图像s možnostísmazání
//移除(位置);
}
});
}
公共无效添加(整型位置,位图项){
添加(位置、项目);
(位置);
}
公共无效删除(内部位置){
移除(位置);
已移除(位置)的项目;
notifyItemRangeChanged(位置,fotky.size());
}
公共适配器(列表myDataset){
fotky=myDataset;
}
@凌驾
public int getItemCount(){
返回fotky.size();
}
公共类ViewHolder扩展了RecyclerView.ViewHolder{
公众影像查看照片;
公共视图持有者(视图项视图){
超级(项目视图);
photo=itemView.findviewbyd(R.id.imageView);
}
}
}
Dialog_image.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/fotka"
android:contentDescription="photo"/>
</LinearLayout>
导致此崩溃的原因是您在
支架上安装了click listener。photo
类型为AppCompatImageView
。在onClick块内,您正在将其键入到ViewGroup
将其更改为以下内容
View viewInflated = LayoutInflater.from(view.getContext()).inflate(R.layout.dialog_image, null);
它应该会起作用