File file = new File(path);
Picasso.with(this).load(file).into(iv2);

String uri = "http://img.my.csdn.net/uploads/201407/26/1406383243_5120.jpg";
Picasso.with(this).load(uri).into(iv3);

Picasso.with(this) //View large image to discard cache and speed up memory recycling
       .load(Images.imageThumbUrls[3])
       .memoryPolicy(NO_CACHE, NO_STORE)
       .into(iv6);

Picasso.with(this).load(imageUrl).resize(320, 640).centerInside().into(imageView);

Picasso.with(this)
       .load("http://img.my.csdn.net/uploads/201407/26/1406383243_5120.jpg")

       .priority(HIGH)  //priority()Set Priority for Picture Loading

       .into(recyclerImageView);
                                        

Picasso.with(this).setIndicatorsEnabled(true);

Children's shoes who have used list-loaded pictures know how to stop loading pictures during the list scrolling process and restore them when they stop scrolling, so how does this work in Picasso?(
This uses the tag tag function.
Set the tag with the following code:

public class ListViewPicassoActivity extends Activity{
    RecyclerView recyclerView;
    private List<String> mDatas;
    private Adapter adapter;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.listview);



        initData();
        initView();
    }



    private void initView(){
        recyclerView = (RecyclerView) findViewById(R.id.recycler);
        LinearLayoutManager manager=new LinearLayoutManager(this); // Set LayoutManager for Layout Management
       // manager.setOrientation(LinearLayoutManager.HORIZONTAL); //Set horizontal or vertical
        recyclerView.setLayoutManager(manager);
        
        recyclerView.setHasFixedSize(true);// (Optional) Setting this option can improve performance if you can determine that the height of each item is fixed
        

        adapter=new Adapter(mDatas,this); 


        recyclerView.setAdapter(adapter); // Set Adapter




        //Listen while RecyclerView slides
        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener(){


//If the tag status is pause or resume, Picasso will hold a reference to the tag, and if the user exits the current Activity at that time,
//Memory leaks occur when the garbage collection mechanism recycles, so they need to be handled in the onDestory() method accordingly.
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState)
            {
                final Picasso picasso = Picasso.with(ListViewPicassoActivity.this);
                if (newState  == RecyclerView.SCROLL_STATE_IDLE) {
                    picasso.resumeTag("RecyclerView"); //Visible Markers
                } else {
                    picasso.pauseTag("RecyclerView");  //Pause Mark Unmark cancleTag()
                }
            }
        });
    }



    private void initData() {
        mDatas = new ArrayList<String>();
        for (int i = 0; i <= 19; i++) {
            mDatas.add("item---" +i);
        }
    }






}

public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder>{
    public List<String> datas = null;
    private Context context;



    public Adapter(List<String> datas, Context context) {
        this.datas = datas;
        this.context=context;
    }



    //Create a new View, called by LayoutManager
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.lv_item,viewGroup,false);
        
        return new ViewHolder(view);;
    }



    //Operation to bind data to interface
    @Override
    public void onBindViewHolder(ViewHolder viewHolder, int position) {
        viewHolder.mTextView.setText(datas.get(position));
        Picasso.with(context)
                .load(Images.imageThumbUrls[position])
                .tag("RecyclerView")  //Parameter is Object
                .into(viewHolder.imageView);
    }



    //Number of Get Data
    @Override
    public int getItemCount() {
        return datas.size();
    }



    //Custom ViewHolder, holding all interface elements for each Item

    public class ViewHolder extends RecyclerView.ViewHolder{



        public TextView mTextView;
        public ImageView imageView;



        public ViewHolder(View view){
            super(view);
            mTextView=(TextView)view.findViewById(R.id.textview);
            imageView= (ImageView) view.findViewById(R.id.imageViewitem);
        }
    }
}