java - 显示单击的网格图像的全尺寸图像

Question

主要 Activity .java

    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_grid);

    // populate data
    products = new ArrayList();
    products.add(new Product("http://image1.jpg"));
    products.add(new Product("http://image2.jpg"));
    products.add(new Product("http://image3"));
    products.add(new Product("http://image4"));

    //
    gvProducts = (GridView) findViewById( R.id.grid_products);
    adapterProducts = new ProductListAdapterWithCache(this, products);
    gvProducts.setAdapter(adapterProducts);




    gvProducts.setOnItemClickListener(new AdapterView.OnItemClickListener() {
       public void onItemClick(AdapterView<?> parent, View v, int position, long id) {


           String path = (MainActivity.this, position);

           Intent intent = new Intent(MainActivity.this, FullImageActivity.class);
           intent.putExtra("IMAGEPATH",path);
           startActivity(intent);
           }
    });

}

我正在 android studio 中开发简单的图像处理应用程序。我正在从 url 下载图像以在上面的网格中显示。我想在单击网格时在页面中显示完整图像。试图通过 Intent 传递位置但它显示错误这条线..

String path = (MainActivity.this, position);

FullImageActivity.java

    public class FullImageActivity extends Activity {

      @Override
     public void onCreate(Bundle savedInstanceState){

        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_fullscreen_image);
        // selected item
       int imageInt = getIntent().getIntExtra("IMAGEPATH", R.drawable.spinner);
       ImageView imageView = (ImageView) findViewById(R.id.imageView);
       imageView.setImageResource(imageInt);

    }
}

我是初学者，如果我在基础知识上做错了什么，请指导我。

谢谢，

Answer 1

试试下面的代码:

gvProducts.setOnItemClickListener(new AdapterView.OnItemClickListener() {
       public void onItemClick(AdapterView<?> parent, View v, int position, long id) {


           Intent intent = new Intent(MainActivity.this, FullImageActivity.class);
           intent.putExtra("IMAGEPATH",products.get(position).imagePath);
           startActivity(intent);
           }
    });

在 Activity 中:

String path = getIntent().getStringExtra("IMAGEPATH");