Android 点击图片查看大图包含放大效果的动画

首先在moddle的gradle导入依赖
compile ‘com.github.chrisbanes:PhotoView:2.1.3’
在项目的gradle里面的repositories下导入
maven { url ‘https://jitpack.io’ }

	开始

图片的点击事件就不写了
先把图片链接放入一个String类型集合中Array
再传入一个你点击的第几张图片的数

Intent intent = new Intent(context, LookImageActivity.class);
intent.putStringArrayListExtra("image",imagety);
intent.putExtra("currentPosition",position);
//这是带动画的跳转需要在布局文件的控件加一个属性    在后文
context.startActivity(intent,ActivityOptions.makeSceneTransitionAnimation(context,holder.marketpinglunimage, "shareNames").toBundle());

在你点击的控件上加上
android:transitionName=“shareNames”
还有在你跳转的页面加上这个
android:transitionName=“shareNames”
例如:

<com.lllkkk.coggg.view.MultiImageView
        android:transitionName="shareNames"
        android:id="@+id/marketpinglunimage"
        android:layout_marginLeft="60dp"
        android:layout_marginBottom="15dp"
        android:layout_marginRight="20dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
</com.lllkkk.coggg.view.MultiImageView>

public class LookImageActivity extends Activity {

    private int currentPosition;
    private ArrayList<String> Urls;
    private MyImageAdapter adapter;
    private TextView tvImageCount;
    private PhotoViewPager viewPagerPhoto;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏
        setContentView(R.layout.activity_look_image);
        tvImageCount = findViewById(R.id.tv_image_count);
        viewPagerPhoto = findViewById(R.id.view_pager_photo);
        initData();

    }

    private void initData() {
        Intent intent = getIntent();
        currentPosition = intent.getIntExtra("currentPosition", 0);
        Urls = intent.getStringArrayListExtra("image");
        adapter = new MyImageAdapter(Urls, this);
        viewPagerPhoto.setAdapter(adapter);
        viewPagerPhoto.setCurrentItem(currentPosition, false);
        tvImageCount.setText(currentPosition+1 + "/" + Urls.size());
        viewPagerPhoto.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                super.onPageSelected(position);
                currentPosition = position;
                tvImageCount.setText(currentPosition + 1 + "/" + Urls.size());
            }
        });
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        Log.e("aaa","按了返回键");
    }
}

public class MyImageAdapter  extends PagerAdapter {
    private List<String> imageUrls;
    private Activity activity;

    public MyImageAdapter(List<String> imageUrls, Activity activity) {
        this.imageUrls = imageUrls;
        this.activity = activity;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        String url = imageUrls.get(position);
        PhotoView photoView = new PhotoView(activity);

        Glide.with(activity)
                .load(url)
                .placeholder(R.mipmap.ic_launcher)//加载等待图
                .diskCacheStrategy(DiskCacheStrategy.ALL)//缓存模式
                .into(photoView);
        container.addView(photoView);
        photoView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
            	//调用返回键返回不要用finish()调用finish()会没有返回动画的
                Log.e("aaa", "onClick: ");
                activity.onBackPressed();
            }
        });
        return photoView;
    }

    @Override
    public int getCount() {
        return imageUrls != null ? imageUrls.size() : 0;
    }

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

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

    @Override
    public int getItemPosition(Object object) {
        return POSITION_NONE;
    }
}

布局

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

    <com.lllkkk.coggg.view.PhotoViewPager
        android:id="@+id/view_pager_photo"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:transitionName="shareNames"/>

    <TextView
        android:id="@+id/tv_image_count"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="1/3"
        android:textColor="#fff"
        android:layout_gravity="center"

        android:layout_centerHorizontal="true"
        android:layout_marginTop="20dp"/>

</RelativeLayout>

public class PhotoViewPager extends ViewPager {
    public PhotoViewPager(Context context) {
        super(context);
    }

    public PhotoViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        try {
            return super.onInterceptTouchEvent(ev);
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
            return false;
        }
    }
}