PictureGridActivity.java 文件源码

private void addChangeProfilePicListener( final DBHelper dbHelper, final String uid ) {
    gridView.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            pos = position;

            new AlertDialog.Builder(PictureGridActivity.this)
                    .setTitle("Use as profile picture?")
                    .setIcon(android.R.drawable.ic_dialog_alert)
                    .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int whichButton) {
                            StorageReference storageRef = dbHelper.getStorage().getReference("Photo/" + uid + "/" + hashList.get(pos));
                            storageRef.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                                @Override
                                public void onSuccess(Uri downloadUrl) {
                                    dbHelper.getDb().getReference(dbHelper.getUserPath()).child(uid).child("profile_pic").setValue(downloadUrl.toString());
                                    finish();
                                }
                            });
                        }
                    })
                    .setNegativeButton(android.R.string.no, null).show();
        }
    });
}