Android hide and removing the image in imageview

问题

How to remove a image in imageview in android and also how to hide the entire image.

Here I have placed an image in imageview by the below code.

answerState1.setBackgroundResource(R.drawable.correct);

I don't know how to remove or hide the image. Also I am entirely new to android development.

回答1:

You can set the visibility of an image with the following method calls:

answerState1.setVisibility(View.GONE);  // hide image (make the view gone)

answerState1.setVisibility(View.VISIBLE);  // make image visible

answerState1.setVisibility(View.INVISIBLE);  // make image invisible

In UI, you can also do something like the following:

<ImageView android:id="@+id/imgPreview" 
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
android:visibility="gone"/>

回答2:

try this imageview.setVisibility(ImageView.INVISIBLE);

回答3:

You can use answerState1.setVisibility(View.INVISIBLE); to make view invisible and answerState1.setVisibility(View.Gone); to make the view invisible.

回答4:

Try the following code:

ImageView im = (ImageView)findViewById(R.id.imageView1);
im.setVisibility(View.INVISIBLE);
im.getLayoutParams().height = 0;

来源：https://stackoverflow.com/questions/6662871/android-hide-and-removing-the-image-in-imageview