/**
* Check the {@link PackageManager} if the phone has an application installed to view this type of
* attachment. If not, {@link #viewButton} is disabled. This should be done in any place where
* attachment.viewButton.setEnabled(enabled); is called. This method is safe to be called from the
* UI-thread.
*/
public void checkViewable() {
if (viewButton.getVisibility() == View.GONE) {
// nothing to do
return;
}
if (!viewButton.isEnabled()) {
// nothing to do
return;
}
try {
Uri uri = AttachmentProvider.getAttachmentUriForViewing(mAccount, part.getAttachmentId());
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(uri);
intent.addFlags(
Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
if (intent.resolveActivity(mContext.getPackageManager()) == null) {
viewButton.setEnabled(false);
}
// currently we do not cache re result.
} catch (Exception e) {
Log.e(
K9.LOG_TAG,
"Cannot resolve activity to determine if we shall show the 'view'-button for an attachment",
e);
}
}
public void showFile() {
Uri uri = AttachmentProvider.getAttachmentUriForViewing(mAccount, part.getAttachmentId());
Intent intent = new Intent(Intent.ACTION_VIEW);
// We explicitly set the ContentType in addition to the URI because some attachment viewers
// (such as Polaris office 3.0.x) choke on documents without a mime type
intent.setDataAndType(uri, contentType);
intent.addFlags(
Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
try {
mContext.startActivity(intent);
} catch (Exception e) {
Log.e(K9.LOG_TAG, "Could not display attachment of type " + contentType, e);
Toast toast =
Toast.makeText(
mContext,
mContext.getString(R.string.message_view_no_viewer, contentType),
Toast.LENGTH_LONG);
toast.show();
}
}