我正在开发一个android应用程序，必须从recyclerView共享cardView。我添加了共享按钮，当我单击它以共享特定的cardView时，我只能获取文本，但确切的图像没有出现在屏幕截图中。我得到的是Picasso占位符图像，而不是将图像放入屏幕截图中，如果互联网无法正常工作，我会保留该图像。请帮我。请查看屏幕截图以更好地了解。我添加了调试我的问题所需的所有东西。
谢谢。
This is the screenshot I took normally with phone buttons
This is the screenshot of the card I took with a button click from my app
这是当我单击“共享”按钮时将触发的Onclick事件。
@Override
public void onShareClick(View v, int position) throws IOException {
mRecyclerView = view.findViewById(R.id.feed_recyclerView);
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
String mPath = Environment.getExternalStorageDirectory().toString() + "/" + now + ".jpg";
Bitmap bitmap = onShare(mRecyclerView,position);
File file = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(file);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
openScreenshot(file);
}
这是我编写的onShare方法，用于创建屏幕截图。
public Bitmap onShare(RecyclerView view, int position) {
RecyclerView.Adapter adapter = view.getAdapter();
Bitmap bigBitmap = null;
if (adapter != null) {
int size = adapter.getItemCount();
int height = 0;
Paint paint = new Paint();
int iHeight = 0;
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
// Use 1/8th of the available memory for this memory cache.
final int cacheSize = maxMemory / 8;
LruCache<String, Bitmap> bitmaCache = new LruCache<>(cacheSize);
for (int i = 0; i < 1; i++) {
RecyclerView.ViewHolder holder = adapter.createViewHolder(view, adapter.getItemViewType(position));
adapter.onBindViewHolder(holder, position);
holder.itemView.measure(View.MeasureSpec.makeMeasureSpec(view.getWidth(), View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
holder.itemView.layout(0, 0, holder.itemView.getMeasuredWidth(), holder.itemView.getMeasuredHeight());
holder.itemView.setDrawingCacheEnabled(true);
holder.itemView.buildDrawingCache();
Bitmap drawingCache = holder.itemView.getDrawingCache();
if (drawingCache != null) {
bitmaCache.put(String.valueOf(position), drawingCache);
}
height += holder.itemView.getMeasuredHeight();
}
bigBitmap = Bitmap.createBitmap(view.getMeasuredWidth(), height, Bitmap.Config.ARGB_8888);
Canvas bigCanvas = new Canvas(bigBitmap);
bigCanvas.drawColor(Color.WHITE);
for (int i = 0; i < 1; i++) {
Bitmap bitmap = bitmaCache.get(String.valueOf(position));
bigCanvas.drawBitmap(bitmap, 0f, iHeight, paint);
iHeight += bitmap.getHeight();
}
}
return bigBitmap;
}
这是来自recyclerview适配器的Image View支架。
public class ImageViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnCreateContextMenuListener,
MenuItem.OnMenuItemClickListener {
public TextView TextViewName;
public TextView DescView;
public ImageView imageView;
public ImageButton copy;
public ImageButton download;
public ImageButton share;
public ImageViewHolder(@NonNull View itemView) {
super(itemView);
TextViewName = itemView.findViewById(R.id.feed_name);
DescView = itemView.findViewById(R.id.feed_desc);
imageView = itemView.findViewById(R.id.feed_image);
copy = itemView.findViewById(R.id.copy_feed);
copy.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mListener.onCopyClick(v,getAdapterPosition());
}
});
download = itemView.findViewById(R.id.download_feed);
download.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mListener.onDownloadClick(v,getAdapterPosition());
}
});
share = itemView.findViewById(R.id.share_feed);
share.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
mListener.onShareClick(v,getAdapterPosition());
} catch (IOException e) {
e.printStackTrace();
}
}
});
itemView.setOnClickListener(this);
itemView.setOnCreateContextMenuListener(this);
}
这是来自回收者视图适配器的OncreateViewHolder：
@NonNull
@Override
public ImageViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(mContext).inflate(R.layout.feed_card_view, parent, false);
return new ImageViewHolder(v);
}
这是名片视图的XML代码：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/fcardRelative"
android:orientation="vertical">
<androidx.cardview.widget.CardView
android:id="@+id/fcard"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/spacing_middle"
android:layout_marginTop="10dp"
android:layout_marginRight="@dimen/spacing_middle"
android:layout_marginBottom="10dp"
android:visibility="visible"
app:cardCornerRadius="2dp"
app:cardElevation="2dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:orientation="vertical">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="250dp">
<ImageView
android:id="@+id/feed_image"
android:layout_width="match_parent"
android:layout_height="250dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_margin="@dimen/spacing_large"
android:textSize="20sp"
android:text="FCIM International Ministries"
android:textAppearance="@style/TextAppearance.AppCompat.Headline"
android:textColor="@android:color/white" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:text="26/12/2019"
android:layout_margin="@dimen/spacing_large"
android:textColor="@color/white_transparency"
android:textAppearance="@style/TextAppearance.AppCompat.Light.Widget.PopupMenu.Small"
/>
</RelativeLayout>
<TextView
android:id="@+id/no"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/feed_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="15dp"
android:textAppearance="@style/TextAppearance.AppCompat.Headline" />
<TextView
android:id="@+id/feed_desc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginLeft="@dimen/spacing_large"
android:layout_marginRight="@dimen/spacing_large"
android:layout_marginBottom="@dimen/spacing_large"
android:maxLength="275"
android:textAppearance="@style/TextAppearance.AppCompat.Subhead" />
<View
android:layout_width="wrap_content"
android:layout_height="1dp"
android:background="@color/teal_700" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:orientation="horizontal"
android:gravity="right"
android:background="@color/teal_700"
android:layout_gravity="center_horizontal">
<ImageButton
android:layout_width="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"
android:background="?attr/selectableItemBackgroundBorderless"
android:tint="@color/grey_3"
app:srcCompat="@drawable/ic_favorites" />
<ImageButton
android:layout_width="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"
android:background="?attr/selectableItemBackgroundBorderless"
android:tint="@color/grey_3"
app:srcCompat="@drawable/ic_bookmark" />
<ImageButton
android:layout_width="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"
android:background="?attr/selectableItemBackgroundBorderless"
android:tint="@color/black"
android:id="@+id/copy_feed"
app:srcCompat="@drawable/ic_content_copy"/>
<ImageButton
android:layout_width="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"
android:background="?attr/selectableItemBackgroundBorderless"
android:tint="@color/black"
android:id="@+id/download_feed"
app:srcCompat="@drawable/ic_file_download"/>
<ImageButton
android:layout_width="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"
android:background="?attr/selectableItemBackgroundBorderless"
android:tint="@color/black"
android:id="@+id/share_feed"
app:srcCompat="@drawable/ic_share" />
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</RelativeLayout>
</LinearLayout>
这是Recyclerview和View页面的XML代码
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".feed_feed">
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/fab_feed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end|right"
android:layout_margin="@dimen/spacing_smlarge"
android:clickable="true"
android:tint="@android:color/white"
app:fabSize="normal"
app:rippleColor="@android:color/white"
app:srcCompat="@drawable/ic_create" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent">
<View
android:layout_width="2dp"
android:layout_height="match_parent"
android:layout_marginStart="50dp"
android:background="@color/grey_80" />
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/feed_recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>