Question

我使用View Pager创建了一个Image Slider 我尝试使用setOnPageChangeListener但它只在
时触发用户更改viewpager的页面我正在做的事情（仍然没有运气）是当用户点击屏幕时将出现另一种布局但我坚持要触发TAP事件。

这是我的代码。

import android.content.Context;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;

import com.thesis.juandirection.juandirectionfinale.R;
import uk.co.senab.photoview.PhotoViewAttacher;

public class viewInfo extends AppCompatActivity {
    private ViewPager viewPager;
    private CustomSwipeAdapter adapter;
    PhotoViewAttacher mAttacher;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_view_info);
        viewPager = (ViewPager) findViewById(R.id.view_pager);
        adapter = new CustomSwipeAdapter(this);
        viewPager.setAdapter(adapter);
        viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                Toast.makeText(getBaseContext(), "" + position, Toast.LENGTH_LONG).show();
            }
        });

    }

    public class CustomSwipeAdapter extends PagerAdapter {
        private int[] image_resources = {R.drawable.bsu, R.drawable.gameover2};
        private Context context;
        private LayoutInflater layoutInflater;

        public CustomSwipeAdapter(Context context) {
            this.context = context;
        }

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

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

        @Override
        public Object instantiateItem(View container, int position) {
            layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View item_view = layoutInflater.inflate(R.layout.swipe_layout, (ViewGroup) container, false);
            ImageView imageView = (ImageView) item_view.findViewById(R.id.image_view);
            imageView.setPadding(5, 5, 5, 5);
            imageView.setImageResource(image_resources[position]);
            ((ViewGroup) container).addView(item_view);

            mAttacher = new PhotoViewAttacher(imageView);
            mAttacher.update();
            return item_view;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            container.removeView((LinearLayout) object);
        }
    }

}

活动的XML。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/pls"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clickable="true"
    android:orientation="vertical"
    tools:context="com.thesis.juandirection.juandirectionfinale.viewInfos.viewInfo">

    <android.support.v4.view.ViewPager
        android:id="@+id/view_pager"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"></android.support.v4.view.ViewPager>


</LinearLayout>

这是将被封送的XML布局。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    android:background="#000"
     >

    <ImageView
        android:id="@+id/image_view"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_gravity="center"
        android:gravity="center"
        />
</LinearLayout>

我在做的是当用户点击图像时图像的信息将显示在同一屏幕上。（如Facebook查看照片）

查看寻呼机（处理事件监听器）

0 个答案: