Question

从ViewPager触摸时如何显示全屏图像？ **我使用Glide从网址中获取图片。

我试图使用FullScreenActivity并发送了imageUrls，但是我无法通过ImagePagerAdapter.java中的InstantiateItem方法启动startActivity（）。

ImagePagerAdapter.java

public class ImagePagerAdapter extends PagerAdapter {

    private Context mContext;
    private String[] imageUrls;

    public ImagePagerAdapter(Context mContext, String[] imageUrls) {
        this.mContext = mContext;
        this.imageUrls = imageUrls;
    }

    @Override
    public int getCount() {
        return imageUrls.length;
    }

    @Override
    public boolean isViewFromObject(@NonNull View view, @NonNull Object o) {
        return view == o;
    }

    @NonNull
    @Override
    public Object instantiateItem(@NonNull final ViewGroup container, final int position) {
        final ImageView imageView = new ImageView(mContext);
        Glide.with(mContext)
                .load(imageUrls[position])
                .into(imageView);

        container.addView(imageView);

        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //Display full screen images when touched.

            }
        });
        return imageView;
    }
}

LocalExperienceDetail.java

public class LocalExperienceDetail extends AppCompatActivity {
    private String[] imageUrls;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_local_experience_detail);

        String company_name_eng = getIntent().getExtras().getString("name_eng");
        String img1 = getIntent().getExtras().getString("img1");
        String img2 = getIntent().getExtras().getString("img2");
        String img3 = getIntent().getExtras().getString("img3");
        String img4 = getIntent().getExtras().getString("img4");
        String img5 = getIntent().getExtras().getString("img5");
        String description_activity = getIntent().getExtras().getString("activity");
        String time = getIntent().getExtras().getString("time");
        String price = getIntent().getExtras().getString("price");
        String tel = getIntent().getExtras().getString("tel");
        String car_park = getIntent().getExtras().getString("car_park");
        String address = getIntent().getExtras().getString("address");
        String website = getIntent().getExtras().getString("website");

        TextView tvCompanyNameEng = findViewById(R.id.txtCompanyName);
        TextView tvDescActivity = findViewById(R.id.txtDescActivity);
        TextView tvPrice = findViewById(R.id.txtPrice);
        TextView tvTel = findViewById(R.id.txtTel);
        TextView tvCarPark = findViewById(R.id.txtCarPark);
        TextView tvAddress = findViewById(R.id.txtAddress);
        TextView tvWebsite = findViewById(R.id.txtWebsite);
        TextView tvTime = findViewById(R.id.txtTime);
        ViewPager viewPager = findViewById(R.id.imgView);

        tvCompanyNameEng.setText(company_name_eng);
        tvDescActivity.setText(description_activity);
        tvPrice.setText(price);
        tvTel.setText(tel);
        tvCarPark.setText(car_park);
        tvAddress.setText(address);
        tvWebsite.setText(website);
        tvTime.setText(time);

        imageUrls = new String[] {
                img1,
                img2,
                img3,
                img4,
                img5
        };
        ImagePagerAdapter adapter = new ImagePagerAdapter(this, imageUrls);
        viewPager.setAdapter(adapter);
    }
}

我希望全屏图像可以滑动。

Design

Answer 1

有可能。方法startActivity是上下文类(doc)

的方法成员

    imageView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //Display full screen images when touched.
            Intent intent = new Intent(); // Your intent
            mContext.startActivity(intent);

        }
    });

如果您需要使用图像（例如画廊），facebook可以开发Fresco库。看看。

单击PagerAdapter后如何显示全屏图像？

1 个答案: