java - 单击按钮即可应用多种功能

Question

我正在尝试在按钮上应用一个函数，当我第一次按下时，Function1 在 imageView2 中显示图像，当我们再次按下它(第二次)时，Function2 > 在 imageView2 中显示其他图像(替换 Function1 的图像)，为此我尝试以下逻辑，但它仅适用于 (count==1) 。

private int count = 0;        
Button button= (Button) findViewById(R.id.NextButton);
button.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v)  {
        if (count==1)
        {
                grayimg(bmInImg.getHeight(),bmInImg.getWidth(), mPhotoIntArray, mCannyOutArray); 
                Bitmap bmOutImg = Bitmap.createBitmap(bmInImg.getWidth(), bmInImg.getHeight(), Config.ARGB_8888);  
                bmOutImg.setPixels(mCannyOutArray, 0, bmInImg.getWidth(), 0, 0, bmInImg.getWidth(), bmInImg.getHeight());
                imageview_2.setImageBitmap(bmOutImg);
        }
        else if(count==2)
        {
               grayimg_2(bmInImg.getHeight(),bmInImg.getWidth(), mPhotoIntArray, mCannyOutArray); 
                Bitmap bmOutImg = Bitmap.createBitmap(bmInImg.getWidth(), bmInImg.getHeight(), Config.ARGB_8888);  
                bmOutImg.setPixels(mCannyOutArray, 0, bmInImg.getWidth(), 0, 0, bmInImg.getWidth(), bmInImg.getHeight());
                imageview_2.setImageBitmap(bmOutImg);
        }
        else if(count==3)
        {
               grayimg_3(bmInImg.getHeight(),bmInImg.getWidth(), mPhotoIntArray, mCannyOutArray); 
                Bitmap bmOutImg = Bitmap.createBitmap(bmInImg.getWidth(), bmInImg.getHeight(), Config.ARGB_8888);  
                bmOutImg.setPixels(mCannyOutArray, 0, bmInImg.getWidth(), 0, 0, bmInImg.getWidth(), bmInImg.getHeight());
                imageview_2.setImageBitmap(bmOutImg);
        }
        count++;            
    }
});

Answer 1

做这样的事情 -

    Button button= (Button) findViewById(R.id.NextButton);
    button.setOnClickListener(new OnClickListener() {

        @Override
    public void onClick(View v)  {

         if (imageView1.getVisibility() == View.VISIBLE) {
             imageView1..setVisibility(View.INVISIBLE);
             imageView2..setVisibility(View.VISIBLE);
          }
         else
         {
             imageView1..setVisibility(View.VISIBLE);
             imageView2..setVisibility(View.INVISIBLE);
         }         

        }
        });