问题
In my Activity I have an EditText, a Button and a GridView. The user selects the image from the GridView and enters the name in the EditText, and then clicks the done button.
activity.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
android:id="@+id/l1"
>
<View
android:layout_width="@dimen/btm_sht_line"
android:layout_height="@dimen/btm_sht_height"
android:layout_marginTop="@dimen/btm_top"
android:layout_gravity="center_horizontal"
android:background="@color/colorPrimaryDark"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/header_create_a_new_list"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dp"
android:textStyle="bold"
/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="@+id/l2"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/marin_top"
>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listname"
android:hint="@string/list_title_name"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="@dimen/marin_top"
android:layout_marginStart="@dimen/marin_top"
android:inputType="text"
android:autofillHints="@string/list_title_name" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/done"
android:src="@drawable/ic_check_circle"
android:layout_marginRight="15dp"
android:layout_marginEnd="@dimen/marin_top"
android:layout_marginLeft="@dimen/margin_left"
android:layout_marginStart="@dimen/margin_left"
tools:ignore="ContentDescription"
/> </LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/l3"
android:orientation="vertical"
>
<View style="@style/Divider"
android:layout_marginTop="@dimen/marin_top"
/>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/r1"
>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scroll"
><GridView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/gridview"
android:columnWidth="90dp"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="columnWidth"
android:gravity="center"
/>
</ScrollView>
</RelativeLayout>
</LinearLayout>
I want to move the selected image and the entered text to another Activity
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".CheckslateHome">
<ImageView
android:layout_width="90dp"
android:layout_height="90dp"
android:id="@+id/ima"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/getlistname"
android:text="hi welcome"
android:layout_below="@+id/ima"
/>
</RelativeLayout>
In my code when the user selects the image, before entering the name, it loads to a new empty window. Also I have 6 images in my drawable Folder and only 3 images are being displayed in the GridView.
Java class
public class NewListCreate extends BottomSheetDialogFragment {
Integer[] images={R.drawable.menu,R.drawable.musicbox,R.drawable.shoppingbag,R.drawable.shoppingcart,R.drawable.wallet,R.drawable.weddingdress};
GridView gridView;
ArrayList<imageModel> arrayList;
public NewListCreate() {}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.new_list_create, container, false);
ImageButton done = view.findViewById(R.id.done);
final EditText listname = (EditText) view.findViewById(R.id.listname);
final GridView gridView = (GridView) view.findViewById(R.id.gridview);
arrayList = new ArrayList<imageModel>();
for (int i = 0; i < images.length; i++) {
imageModel imagemodel = new imageModel();
imagemodel.setmThumbIds(images[i]);
//add in array list
arrayList.add(imagemodel);
}
final ImageAdapterGridView adapterGridView = new ImageAdapterGridView(getContext(), arrayList);
gridView.setAdapter(adapterGridView);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
adapterGridView.setSelectedPosition(i);
adapterGridView.notifyDataSetChanged();
int imageRes = images[i];
Intent intent = new Intent(getContext(),CheckslateHome.class);
intent.putExtra("IMAGE_RES", imageRes);
startActivity(intent);
}
});
return view;
}
}
AdapterClass
public class ImageAdapterGridView extends BaseAdapter {
private int selectedPosition = -1;
Context context;
ArrayList<imageModel> arrayList;
public ImageAdapterGridView(Context context, ArrayList<imageModel> arrayList) {
this.context = context;
this.arrayList = arrayList;
}
@Override
public int getCount() {
return arrayList.size();
}
@Override
public Object getItem(int i) {
return arrayList.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
if (view==null)
{
view = LayoutInflater.from(context).inflate(R.layout.image_list, viewGroup, false);
}
ImageView imageView;
imageView = (ImageView) view.findViewById(R.id.image);
imageView.setImageResource(arrayList.get(i).getmThumbIds());
if (i == selectedPosition) {
view.setBackgroundColor(Color.WHITE);
} else {
view.setBackgroundColor(Color.TRANSPARENT);
}
return view;
}
public void setSelectedPosition(int position) {
selectedPosition = position;
}
}
what i was Looking was Something Like this [![enter image description here][1]][1]
回答1:
Copy and paste this hope it solve ur Problem
public class NewListCreate extends BottomSheetDialogFragment {
int[] images={R.drawable.menu,R.drawable.musicbox,R.drawable.shoppingbag,R.drawable.shoppingcart,R.drawable.wallet,R.drawable.weddingdress};
int imageRes = images[0];
public NewListCreate() {
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.new_list_create, container, false);
ImageButton done = view.findViewById(R.id.done);
final EditText listname = (EditText) view.findViewById(R.id.listname);
final GridView gridView = (GridView) view.findViewById(R.id.gridview);
final CustomAdpter customAdpter = new CustomAdpter(images,getContext());
gridView.setAdapter(customAdpter);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
customAdpter.selectedImage = i;
customAdpter.notifyDataSetChanged();
imageRes = images[i];
}
});
done.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String itemname = listname.getText().toString();
if (!TextUtils.isEmpty(listname.getText().toString())) {
startActivity(new Intent(getContext(), CheckslateHome.class).putExtra("data", itemname).putExtra("image",imageRes));
dismiss();
} else {
Toast.makeText(getContext(), "List Name not Empty ", Toast.LENGTH_SHORT).show();
}
}
});
return view;
}
public class CustomAdpter extends BaseAdapter{
private int[] icons;
private Context context;
private LayoutInflater layoutInflater;
public int selectedImage = 0;
public CustomAdpter(int[] icons, Context context) {
this.icons = icons;
this.context = context;
this.layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return icons.length;
}
@Override
public Object getItem(int i) {
return null;
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
if (view == null)
{
view = layoutInflater .inflate(R.layout.image_list,viewGroup,false);
}
ImageView imageicons = view.findViewById(R.id.image);
if (i < icons.length) {
imageicons.setImageResource(icons[i]);
if (i != selectedImage) {
imageicons.setImageAlpha(50);
}
imageicons.setScaleType(ImageView.ScaleType.CENTER_CROP);
// imageicons.setLayoutParams(new GridView.LayoutParams(150, 150));
if (i == selectedImage) {
view.setBackgroundColor(Color.WHITE);
} else {
view.setBackgroundColor(Color.TRANSPARENT);
}
};
return view;
}
}
回答2:
I think what you're looking for is passing data through navigation.
It will allow you send your image and name data from one activity/fragment to the next one.
Check out data-binding as well, might be useful.
来源：https://stackoverflow.com/questions/63414396/how-to-hold-the-selected-image-in-gridview-and-pass-to-next-activity-after-i-cli