将图像传递到另一个活动

Question

I have an image stored on the hard drive and want to move to another activity. 我有一个存储在硬盘上的图像，想要移动到另一个活动。

In the main activity, the path that I put is as follows: 在主要活动中，我输入的路径如下：

String address = "/ Dir_Imagen / nombre.png";

On the secondary activity, once I pick up the dir, put: 在辅助活动中，一旦我获取了目录，请输入：

Bitmap icon = BitmapFactory.decodeFile (address);

The problem is that the variable icon, returns me null. 问题是变量图标返回null。

Someone knows what is wrong? 有人知道怎么了吗？

Answer 1

You can actually pass the bitmap object from one activity to the other as it's implementing parcelable: 实际上，您可以在实现可打包时将位图对象从一个活动传递到另一个活动：

Intent intent = new Intent(this, NewActivity.class);
intent.putExtra("icon", icon);

Then from the second activity, get the bitmap back with: 然后从第二个活动中，使用以下命令返回位图：

Bitmap icon = (Bitmap) getIntent().getParcelableExtra("icon");