Calling Startactivity() from Outside of an Activity

Calling startActivity() from outside of an Activity context

Either

• cache the Context object via constructor in your adapter, or
• get it from your view.

Or as a last resort,

• add - FLAG_ACTIVITY_NEW_TASK flag to your intent:

_

myIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

Edit - i would avoid setting flags as it will interfere with normal flow of event and history stack.

Calling startActivity() from outside of an Activity

The problem is pretty obvious (and actually classic programming one :)) - you're setting your flag not to newly created intent1, but to intent, which is being passed as a parameter. So you just have to change this to:

intent1.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

And then it should work.

Intent from adapter: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag

If you are using your Adapter in your Activity then simply use:

RecyclerView.Adapter<EntitiesListAdapter.MyViewHolder> mAdapter = new EntitiesListAdapter(entities, MainActivity.this);

If you want to use getApplicationContext(), then you have to add FLAG_ACTIVITY_NEW_TASK to the startActivity’s Intent like:

Intent intent = new Intent(mContext, ViewEntityActivity.class);
intent.put("entity", row);
intent.setFlags(FLAG_ACTIVITY_NEW_TASK)
mContext.startActivity(intent);

Calling startActivity() from outside of an activity context requires the FLAG_ACTIVITY_NEW_TASK

Try this.

Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_TEXT, bundle.getString("URL"));
Intent new_intent = Intent.createChooser(shareIntent, "Share via");
new_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
getApplicationContext().startActivity(new_intent);

Using Intent.createChooser and getting error: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag

Intent.createChooser creates an Intent, so you need to set the FLAG_ACTIVITY_NEW_TASK flag on that intent, e.g.,

                    Intent i = new Intent(Intent.ACTION_SEND);
                    i.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                    i.putExtra(Intent.EXTRA_STREAM, rasta);  //rasta -> Uri obj
                    i.setType("image/*");
                    Intent chooserIntent = Intent.createChooser(i,"Share karna...");
                    chooserIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    getApplicationContext().startActivity(chooserIntent);

You were also calling startService instead of startActivity - make sure to correct that as well.

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