android share image from url

问题:

I want to share an image using the code:

Intent sharingIntent = new Intent(Intent.ACTION_SEND);
Uri imageUri = Uri.parse("http://stacktoheap.com/images/stackoverflow.png");
sharingIntent.setType("image/png");
sharingIntent.putExtra(Intent.EXTRA_STREAM, imageUri);
startActivity(sharingIntent);

I made a button that call the code above. The share intent open but I got if I click on "Share by MMS": "cannot add this picture to your message". If Facebook I got only a text area without my picture.

回答1:

An adapted version of @eclass's answer which doesn't require use of an ImageView:

Use Picasso to load the url into a Bitmap

public void shareItem(String url) {
    Picasso.with(getApplicationContext()).load(url).into(new Target() {
        @Override public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
            Intent i = new Intent(Intent.ACTION_SEND);
            i.setType("image/*");
            i.putExtra(Intent.EXTRA_STREAM, getLocalBitmapUri(bitmap));
            startActivity(Intent.createChooser(i, "Share Image"));
        }
        @Override public void onBitmapFailed(Drawable errorDrawable) { }
        @Override public void onPrepareLoad(Drawable placeHolderDrawable) { }
    });
}

Convert Bitmap into Uri

public Uri getLocalBitmapUri(Bitmap bmp) {
    Uri bmpUri = null;
    try {
        File file =  new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), "share_image_" + System.currentTimeMillis() + ".png");
        FileOutputStream out = new FileOutputStream(file);
        bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
        out.close();
        bmpUri = Uri.fromFile(file);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return bmpUri;
}

回答2:

I use these codes from this tutorial

        final ImageView imgview= (ImageView)findViewById(R.id.feedImage1);

                Uri bmpUri = getLocalBitmapUri(imgview);
                if (bmpUri != null) {
                    // Construct a ShareIntent with link to image
                    Intent shareIntent = new Intent();
                    shareIntent.setAction(Intent.ACTION_SEND);
                    shareIntent.putExtra(Intent.EXTRA_STREAM, bmpUri);
                    shareIntent.setType("image/*");
                    // Launch sharing dialog for image
                    startActivity(Intent.createChooser(shareIntent, "Share Image"));    
                } else {
                    // ...sharing failed, handle error
                }

then add this to your activity

 public Uri getLocalBitmapUri(ImageView imageView) {
    // Extract Bitmap from ImageView drawable
    Drawable drawable = imageView.getDrawable();
    Bitmap bmp = null;
    if (drawable instanceof BitmapDrawable){
       bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
    } else {
       return null;
    }
    // Store image to default external storage directory
    Uri bmpUri = null;
    try {
        File file =  new File(Environment.getExternalStoragePublicDirectory(  
            Environment.DIRECTORY_DOWNLOADS), "share_image_" + System.currentTimeMillis() + ".png");
        file.getParentFile().mkdirs();
        FileOutputStream out = new FileOutputStream(file);
        bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
        out.close();
        bmpUri = Uri.fromFile(file);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return bmpUri;
}

then add your application manifest

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

回答3:

You need to use a local file. Like this:

      Uri imageUri = Uri.parse("android.resource://your.package/drawable/fileName");
      Intent intent = new Intent(Intent.ACTION_SEND);
      intent.setType("image/png");

      intent.putExtra(Intent.EXTRA_STREAM, imageUri);
      startActivity(Intent.createChooser(intent , "Share"));

If your image is on remote server download it to the device first.

回答4:

After a lot of pondering, here is the code that I found to be working for me! I think this is one of the simplest versions of code to achieve the given task using Picasso. There is not need to create an ImageView object.

            Target target = new Target() {
            @Override
            public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                bmp = bitmap;
                String path = MediaStore.Images.Media.insertImage(getContentResolver(), bmp, "SomeText", null);
                Log.d("Path", path);
                Intent intent = new Intent(Intent.ACTION_SEND);
                intent.putExtra(Intent.EXTRA_TEXT, "Hey view/download this image");
                Uri screenshotUri = Uri.parse(path);
                intent.putExtra(Intent.EXTRA_STREAM, screenshotUri);
                intent.setType("image/*");
                startActivity(Intent.createChooser(intent, "Share image via..."));
            }

            @Override
            public void onBitmapFailed(Drawable errorDrawable) {

            }

            @Override
            public void onPrepareLoad(Drawable placeHolderDrawable) {

            }
        };
        String url = "http://efdreams.com/data_images/dreams/face/face-03.jpg";
        Picasso.with(getApplicationContext()).load(url).into(target);

Here, bmp is a class level Bitmap variable and url will be the dynamic Internet url to your image for sharing. Also, instead of keeping the code to share inside the onBitmapLoaded() function, it can also be kept inside another handler function and later called from the onBitmapLoaded() function. Hope this helps!

回答5:

Try this:

new OmegaIntentBuilder(context)
                .share()
                .filesUrls("http://stacktoheap.com/images/stackoverflow.png")
                .download(new DownloadCallback() {
                    @Override
                    public void onDownloaded(boolean success, @NotNull ContextIntentHandler contextIntentHandler) {
                        contextIntentHandler.startActivity();
                    }
                });

https://github.com/Omega-R/OmegaIntentBuilder

回答6:

First you need to load image in the glide. Then you can share it to anywhere. Code to load image from glide (image is being saved to storage, you can delete it later).

Glide.with(getApplicationContext())
 .load(imagelink)\\ link of your image file(url)
 .asBitmap().skipMemoryCache(true).diskCacheStrategy(DiskCacheStrategy.NONE)

 .into(new SimpleTarget < Bitmap > (250, 250) {
  @Override
  public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation) {


   Intent intent = new Intent(Intent.ACTION_SEND);
   intent.putExtra(Intent.EXTRA_TEXT, "Hey view/download this image");
   String path = MediaStore.Images.Media.insertImage(getContentResolver(), resource, "", null);
   Log.i("quoteswahttodo", "is onresoursereddy" + path);

   Uri screenshotUri = Uri.parse(path);

   Log.i("quoteswahttodo", "is onresoursereddy" + screenshotUri);

   intent.putExtra(Intent.EXTRA_STREAM, screenshotUri);
   intent.setType("image/*");

   startActivity(Intent.createChooser(intent, "Share image via..."));
  }

  @Override
  public void onLoadFailed(Exception e, Drawable errorDrawable) {
   Toast.makeText(getApplicationContext(), "Something went wrong", Toast.LENGTH_SHORT).show();


   super.onLoadFailed(e, errorDrawable);
  }

  @Override
  public void onLoadStarted(Drawable placeholder) {
   Toast.makeText(getApplicationContext(), "Starting", Toast.LENGTH_SHORT).show();

   super.onLoadStarted(placeholder);
  }
 });

回答7:

   share.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                int permissionCheck = ContextCompat.checkSelfPermission(SingleProduct.this,
                        Manifest.permission.READ_EXTERNAL_STORAGE);

                if (permissionCheck == PackageManager.PERMISSION_GRANTED) {
                    Log.e("MainActivity ", "P granted");

                    bmpUri = getLocalBitmapUri(imageView);

                } else {
                    ActivityCompat.requestPermissions(SingleProduct.this,
                            new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
                }
            } else {
                Log.e("MainActivity", "Lower Than MarshMallow");
                bmpUri = getLocalBitmapUri(imageView);
            }

            if (bmpUri != null) {
                // Construct a ShareIntent with link to image
                Intent shareIntent = new Intent();
                shareIntent.setAction(Intent.ACTION_SEND);
                shareIntent.putExtra(Intent.EXTRA_STREAM, bmpUri);
                shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                shareIntent.setType("image/*");
                startActivity(Intent.createChooser(shareIntent, "Share Image"));
            } else {
                Toast.makeText(SingleProduct.this, "Sharing Failed !!", Toast.LENGTH_SHORT).show();
            }
        }
    });

---

 public Uri getLocalBitmapUri(ImageView imageView) {
    Drawable drawable = imageView.getDrawable();
    Bitmap bmp = null;
    if (drawable instanceof BitmapDrawable) {
        bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
    } else {
        return null;
    }
    Uri bmpUri = null;
    try {
        File file = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), "share_image_" + System.currentTimeMillis() + ".png");
        FileOutputStream out = new FileOutputStream(file);
        bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
        out.close();

       bmpUri = Uri.fromFile(file);


    } catch (IOException e) {
        e.printStackTrace();
    }
    return bmpUri;
}

---

//for oreo add below code in manifest under application tag

 <provider
        android:name=".utility.GenericFileProvider"
        android:authorities="${applicationId}.your package 
     name.utility.GenericFileProvider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/provider_paths" />
    </provider>

---

create class that extends FileProvider

public class MyFileProvider extends FileProvider {

}

---

for oreo add this code

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            bmpUri = FileProvider.getUriForFile(this, 
      this.getApplicationContext().getPackageName() + 
    ".your package name.GenericFileProvider", file);
        } else {
            bmpUri = Uri.fromFile(file);
        }

---

finally add provider_paths.xml in res/xml 

   <paths xmlns:android="http://schemas.android.com/apk/res/android">
   <external-path name="external_files" path="."/>
   </paths>

thats all

回答8:

By using createchooser you can achieve this,

Intent sharingIntent = new Intent(Intent.ACTION_SEND);
Uri screenshotUri = Uri.parse(path);

sharingIntent.setType("image/png");
sharingIntent.putExtra(Intent.EXTRA_STREAM, screenshotUri);
startActivity(Intent.createChooser(sharingIntent, "Share image using"));

Registering for the Intent

If you want your app to be listed when this Intent is called, then you have to add an intent filter in your manifest.xml file

 <intent-filter>
 <action android:name="android.intent.action.SEND" />
 <category android:name="android.intent.category.DEFAULT" />
 <data android:mimeType="image/*" />
 </intent-filter>