Android 导航抽屉的操作和触摸

我试图在本教程中添加

onimtouch

：

最终代码：

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {

    private static final int TYPE_HEADER = 0;  // Declaring Variable to Understand which View is being worked on
    // IF the viaew under inflation and population is header or Item
    private static final int TYPE_ITEM = 1;

    private String mNavTitles[]; // String Array to store the passed titles Value from MainActivity.java
    private int mIcons[];       // Int Array to store the passed icons resource value from MainActivity.java

    private String name;        //String Resource for header View Name
    private int profile;        //int Resource for header view profile picture
    private String email;       //String Resource for header view email
    Context context;


    // Creating a ViewHolder which extends the RecyclerView View Holder
    // ViewHolder are used to to store the inflated views in order to recycle them

    public static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        int Holderid;

        TextView textView;
        ImageView imageView;
        ImageView profile;
        TextView Name;
        Context contxt;


        public ViewHolder(View itemView,int ViewType,Context c) {                 // Creating ViewHolder Constructor with View and viewType As a parameter
            super(itemView);
            contxt = c;
            itemView.setClickable(true);
            itemView.setOnClickListener(this);
            // Here we set the appropriate view in accordance with the the view type as passed when the holder object is created

            if(ViewType == TYPE_ITEM) {
                textView = (TextView) itemView.findViewById(R.id.rowText); // Creating TextView object with the id of textView from item_row.xml
                imageView = (ImageView) itemView.findViewById(R.id.rowIcon);// Creating ImageView object with the id of ImageView from item_row.xml
                Holderid = 1;                                               // setting holder id as 1 as the object being populated are of type item row
            }
            else{


                Name = (TextView) itemView.findViewById(R.id.name);         // Creating Text View object from header.xml for name
                       // Creating Text View object from header.xml for email
                profile = (ImageView) itemView.findViewById(R.id.circleView);// Creating Image view object from header.xml for profile pic
                Holderid = 0;                                                // Setting holder id = 0 as the object being populated are of type header view
            }
        }

        @Override
        public void onClick(View v) {

            Toast.makeText(contxt,"The Item Clicked is: "+getPosition(),Toast.LENGTH_SHORT).show();

        }
    }

    MyAdapter(String Titles[], int Icons[], String Name, int Profile, Context passedContext){ // MyAdapter Constructor with titles and icons parameter
        // titles, icons, name, email, profile pic are passed from the main activity as we
        mNavTitles = Titles;                //have seen earlier
        mIcons = Icons;
        name = Name;
        profile = Profile;                     //here we assign those passed values to the values we declared here
        this.context = passedContext;

        //in adapter
    }

    //Below first we ovverride the method onCreateViewHolder which is called when the ViewHolder is
    //Created, In this method we inflate the item_row.xml layout if the viewType is Type_ITEM or else we inflate header.xml
    // if the viewType is TYPE_HEADER
    // and pass it to the view holder

    @Override
    public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        if (viewType == TYPE_ITEM) {
            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row,parent,false); //Inflating the layout

            ViewHolder vhItem = new ViewHolder(v,viewType,context); //Creating ViewHolder and passing the object of type view

            return vhItem; // Returning the created object

            //inflate your layout and pass it to view holder

        } else if (viewType == TYPE_HEADER) {

            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.header,parent,false); //Inflating the layout

            ViewHolder vhHeader = new ViewHolder(v,viewType,context); //Creating ViewHolder and passing the object of type view

            return vhHeader; //returning the object created


        }
        return null;

    }

    //Next we override a method which is called when the item in a row is needed to be displayed, here the int position
    // Tells us item at which position is being constructed to be displayed and the holder id of the holder object tell us
    // which view type is being created 1 for item row
    @Override
    public void onBindViewHolder(MyAdapter.ViewHolder holder, int position) {
        if(holder.Holderid ==1) {                              // as the list view is going to be called after the header view so we decrement the
            // position by 1 and pass it to the holder while setting the text and image
            holder.textView.setText(mNavTitles[position - 1]); // Setting the Text with the array of our Titles
            holder.imageView.setImageResource(mIcons[position -1]);// Settimg the image with array of our icons
        }
        else{

            holder.profile.setImageResource(profile);           // Similarly we set the resources for header view
            holder.Name.setText(name);

        }
    }

    // This method returns the number of items present in the list
    @Override
    public int getItemCount() {
        return mNavTitles.length+1; // the number of items in the list will be +1 the titles including the header view.
    }


    // Witht the following method we check what type of view is being passed
    @Override
    public int getItemViewType(int position) {
        if (isPositionHeader(position))
            return TYPE_HEADER;

        return TYPE_ITEM;
    }

    private boolean isPositionHeader(int position) {
        return position == 0;
    }

}

我可以为每个项目使用开关

但是，如何做到这一点呢？

---

（我在哪里可以将此方法放在我的适配器上？）

此行为将发生在MyAdapter.ViewHolder类中。使ViewHolder实现View.OnClickListener，然后可以为整个项目添加单击行为。在代码中，您似乎已经定义了此方法，因此您只需在onClick方法中添加startActivity行。

RecyclerView ViewHolder有一个方法

getPosition（）

，使用该方法可以获取您单击的任何元素的位置。检查以确保您实际更改了正确的代码，您在问题中的代码是

单击的项目是：

文本。我错了，我在Mainactivity和MyAdapter中添加了此方法。只需从Mainactivity中删除一个方法即可。tnx

Button b = (Button) findViewById(R.id.button1);
                b.setOnClickListener(new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        startActivity(new Intent(MainActivity.this, Activity2.class));
                    }
                });