android - convert a cardview to bitmap

Question

similar type of questions has been asked several times, but I am still having a tough time to understand where the image is saved. I am using the accepted solution of this SO question.

I have a cardview that I want to convert to an image and share it(that's a different issue). My cardview is:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
......
android.support.v7.widget.CardView
        android:id="@+id/cv_abtme"
        android:layout_width="368sp"
        android:layout_height="273dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="101dp"
        android:background="@color/colorPrimaryLight"
        app:cardBackgroundColor="@color/about_instagram_color"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">


        <ImageView
            android:id="@+id/imageView4"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:adjustViewBounds="true"
            android:scaleType="centerCrop"
            app:srcCompat="@mipmap/ic_launcher" />
        ....

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

I am trying to convert it as:

public class AboutMeActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_about_me);
        ImageButton cvbutton= findViewById(R.id.imageButton_abtme);


        cvbutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                getBitmapFromView(view);
                Snackbar.make(getCurrentFocus(),"Image Captured", Snackbar.LENGTH_LONG).show();
            }
        });
    }
    public static Bitmap getBitmapFromView(View view) {
        Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(returnedBitmap);
        Drawable bgDrawable =view.getBackground();
        if (bgDrawable!=null)
            bgDrawable.draw(canvas);
        else
            canvas.drawColor(Color.WHITE);
        view.draw(canvas);
        return returnedBitmap;
    }
}

But I have no idea how it's working, as I can't see any image produced, but obviously no error.

So, the question is:

1. What is the path the image created?
2. Do I need some permission to save and access the jpg?

Answer 1

What is the path the image created?

Based on the code in your question, it is not saved anywhere. You did not write any code to save it. You created a Bitmap object, and that is it.

To save a Bitmap as an image file on disk, call compress(), specifying the image type and a FileOutputStream to where you want to save it.