显示随机图像并单击图像

Question

我想显示随机图片，然后点击一些图片，并显示错误或正确的图片

private int[] imgId = new int[] { R.drawable.info_mna,
        R.drawable.info_mn, R.drawable.panda_mna, R.drawable.panda_mn,
        R.drawable.share_mn, R.drawable.share_mna, R.drawable.riset_mn,
        R.drawable.game_mn };

用于clicklistener

iv3.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            //not working
            if (imgId.length == imgId[1]) {
                Toast.makeText(getApplicationContext(), "right",
                        Toast.LENGTH_LONG).show();

            } else {
                Toast.makeText(getApplicationContext(), "wrong",
                        Toast.LENGTH_LONG).show();
            }

        }
    });

Answer 1

要从数组中获取随机图像，请执行以下操作：

int id = imgId[new Random().nextInt(imgId.length)];

然后在onClick()

iv3.setOnClickListener(new OnClickListener() { 
    @Override 
    public void onClick(View v) {
        //not working 
        if (imgId.length == id) { 
            Toast.makeText(getApplicationContext(), "right", Toast.LENGTH_LONG).show();
        } else { 
            Toast.makeText(getApplicationContext(), "wrong", Toast.LENGTH_LONG).show();
        } 
    } 
});