Android将imageView与图像进行比较 [英] Android compare imageView with image

问题描述

我想将当前的imageView与R.drawable中的图像进行比较。我想我尝试了一切，但我无法解决这个问题。我尝试了所有形式的堆栈溢出。

I want to compare current imageView with image from R.drawable. I guess I tried everything but I can't solve this one. I tried everything form stack overflow.

XML：

<ImageView
        android:layout_width="match_parent"
        android:src="@drawable/red"
        android:id="@+id/imageview1"
        android:clickable="true"
        android:layout_height="match_parent" />

Android：

final ImageView test = (ImageView) findViewById(R.id.imageview1);

test.setOnClickListener(new View.OnClickListener() {
     @Override
     public void onClick(View v) {
          //if(test.getResources().equals(R.drawable.red))
          //if(test.getDrawable().equals(R.drawable.red))
          if(test.getDrawable().getConstantState().equals(getResources().getDrawable(R.drawable.red).getConstantState()))
          {
               Toast.makeText(getApplicationContext(), "work", Toast.LENGTH_SHORT).show();
          }
          else
          {
               Toast.makeText(getApplicationContext(), "not work", Toast.LENGTH_SHORT).show();
          }
     }
});

推荐答案

谢谢Morrison，就是这样。

Thanks Morrison, that was it.

首先

final ImageView test = (ImageView) findViewById(R.id.imageview1);
final Bitmap bmap = ((BitmapDrawable)test.getDrawable()).getBitmap();
Drawable myDrawable = getResources().getDrawable(R.drawable.red);
final Bitmap myLogo = ((BitmapDrawable) myDrawable).getBitmap();

下一步

if(bmap.sameAs(myLogo))
{
do sthng
}

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