Android studio界面点击跳转设计

一、思路简述

1.设计xml文件

需要跳转到一个新的Activity页面，而页面设计需要在创建Activity的时候生成的xml文件中进行

package com.example.myapplication5;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Window;

public class MainActivity2 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.information_weixin);
    }
}

2、对item设置监听
即在onBindViewHolder中对item设置点击事件，当点击后执行所要跳转Activity中的代码。

3.外部使用该方法

最后需要对设置的adapter实现这个点击事件

二、代码展示

Adapter

public class MainActivity2 extends RecyclerView.Adapter {

    private final Context mContext;
    private OnItemClickListener mListener;


    public MainActivity2(Context context){
        this.mContext=context;
    }

    @NonNull
    @Override
    public InnerHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = View.inflate(mContext, R.layout.item_my_recycler_view, null);
        return new InnerHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull InnerHolder holder, final int position) {
        holder.mTextView.setText("点击跳转");
        holder.mImageView.setImageResource(R.mipmap.ic_launcher_round);

        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mListener.onItemClick(position);
            }
        });
    }


    public void setOnItemClickListener(OnItemClickListener listener) {
        this.mListener=listener;
    }

    public interface OnItemClickListener {
        void onItemClick(int position);
    }
    
    @Override
    public int getItemCount() {
        return 30;
    }

    public class InnerHolder extends RecyclerView.ViewHolder {

        private final TextView mTextView;
        private final ImageView mImageView;

        public InnerHolder(@NonNull View itemView) {
            super(itemView);
            mTextView = itemView.findViewById(R.id.tv_title);
            mImageView = itemView.findViewById(R.id.iv_pic);

        }
    }
}

layout

item_layout