可实现功能效果说明：

　　可实现多张图片点击放大，手指控制，左右滑动，多张图片点击任意位置定位显示任意位置图片；无动画，可自己加

效果图：

                           

核心代码：

viewpager:

public class PhotoViewPager extends ViewPager {public PhotoViewPager(Context context) {super(context);}public PhotoViewPager(Context context, AttributeSet attrs) {super(context, attrs);}@Overridepublic boolean onInterceptTouchEvent(MotionEvent ev) {try {return super.onInterceptTouchEvent(ev);} catch (IllegalArgumentException e) {e.printStackTrace();return false;}} }

adapter:

public class MyImageAdapter extends PagerAdapter {public static final String TAG = MyImageAdapter.class.getSimpleName();private List<String> imageUrls;private AppCompatActivity activity;public MyImageAdapter(List<String> imageUrls, AppCompatActivity activity) {this.imageUrls = imageUrls;this.activity = activity;}@Overridepublic Object instantiateItem(ViewGroup container, int position) {String url = imageUrls.get(position);PhotoView photoView = new PhotoView(activity);Picasso.with(activity).load(url).into(photoView);container.addView(photoView);photoView.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {Log.d(TAG, "onClick: ");activity.finish();}});return photoView;}@Overridepublic int getCount() {return imageUrls != null ? imageUrls.size() : 0;}@Overridepublic boolean isViewFromObject(View view, Object object) {return view == object;}@Overridepublic void destroyItem(ViewGroup container, int position, Object object) {container.removeView((View) object);}@Overridepublic int getItemPosition(Object object) {return POSITION_NONE;} }

photoViewActivity

public class PhotoViewActivity extends AppCompatActivity implements View.OnClickListener {public static final String TAG = PhotoViewActivity.class.getSimpleName();private PhotoViewPager mViewPager;private int currentPosition;private MyImageAdapter adapter;private TextView mTvImageCount;private TextView mTvSaveImage;private List<String> Urls;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_photo_view);initView();initData();}private void initView() {mViewPager = (PhotoViewPager) findViewById(R.id.view_pager_photo);mTvImageCount = (TextView) findViewById(R.id.tv_image_count);mTvSaveImage = (TextView) findViewById(R.id.tv_save_image_photo);mTvSaveImage.setOnClickListener(this);}private void initData() {Intent intent = getIntent();currentPosition = intent.getIntExtra("currentPosition", 0);HomeQuestionListModel.DataBeanX DataBean = ((HomeQuestionListModel.DataBeanX) intent.getSerializableExtra("questionlistdataBean"));Urls = DataBean.getAttach().getImage().getOri();adapter = new MyImageAdapter(Urls, this);mViewPager.setAdapter(adapter);mViewPager.setCurrentItem(currentPosition, false);mTvImageCount.setText(currentPosition+1 + "/" + Urls.size());mViewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {@Overridepublic void onPageSelected(int position) {super.onPageSelected(position);currentPosition = position;mTvImageCount.setText(currentPosition + 1 + "/" + Urls.size());}});}@Overridepublic void onClick(View view) {switch (view.getId()) {case R.id.tv_save_image_photo://save image break;}} }

图片列表页面跳转：

private void statPhotoViewActivity(int position) {Intent intent = new Intent(this, PhotoViewActivity.class);Bundle bundle = new Bundle();bundle.putSerializable("dataBean", mData);intent.putExtras(bundle);intent.putExtra("currentPosition", position);startActivity(intent);}

 

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转载于:https://www.cnblogs.com/shen-hua/p/6634440.html

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