Question

这可能吗？我的主要活动是

routeListView.setOnItemClickListener(
            new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                    String route = values[position];

                    //for loop to increment through each route list item
                    int i;
                    for (i=0; i < values.length;i++)
                    {
                        int imageId = (int) image.getResourceId(i, -1);
                        if (route.equals(values[i]))
                        {
                            Intent intent = new Intent(view.getContext(),     RouteDetails.class);
                            intent.putExtra("route", routeDetail[i]);
                            intent.putExtra("imageResourceId", imageId);
                            startActivity(intent);
                        }
                    }
                }
            }

现在我将它传递给RouteDetails.class但我也希望将相同的图像传递给FullScreenImage.class。我希望打开路径详细信息活动，但不要打开FullScreenImage活动。然后可以从RouteDetails.class打开FullScreenImage.class活动有没有一种简单的方法来实现这个目的？

Answer 1

Pscudeo code:-- yes posssible . 
you can send it through intent to intent following like that or 
else if you have URL you can send that as a string .

Send from Acitivity:---

Intent _intent = new Intent(this, newscreen.class);
Bitmap _bitmap; // your bitmap
ByteArrayOutputStream _bs = new ByteArrayOutputStream();
_bitmap.compress(Bitmap.CompressFormat.PNG, 50, _bs);
i.putExtra("byteArray", _bs.toByteArray());
startActivity(i);

Receive from Acitivity:--

if(getIntent().hasExtra("byteArray")) {
    ImageView _imv= new ImageView(this);
    Bitmap _bitmap = BitmapFactory.decodeByteArray(
         getIntent().getByteArrayExtra("byteArray"),0,getIntent().getByteArrayExtra("byteArray").length);        
    _imv.setImageBitmap(_bitmap);
}

使用putExtra将图像通过Intent传递给多个活动

1 个答案: