安卓页面跳转

目标

在实验二的基础上，对有recycleView的页面进行点击跳转设计。比如，某一tab页是新闻列表，则点击某一行能跳转到新闻详情页面

适配器

对适配器MyAdapter添加代码，达成定义接口，并进行声明和访问。

 public static interface OnItemClickListener {
        void onItemClick(View view, int position);
    }

    private OnItemClickListener mOnItemClickListener = null;

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        holder.textView.setText(list.get(position));
        if (mOnItemClickListener != null) {
            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mOnItemClickListener.onItemClick(v,(int)v.getTag());
                }
            });
        }
    }
}

跳转页面

设置好相关监听后，设计所需跳转至的新闻页面。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".new1">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="这里是新闻1"
        android:textSize="50sp" />


</LinearLayout>

主页面

对页面添加跳转效果，实现跳转功能。

package com.example.aa;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.content.Context;
import android.os.Bundle;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.StaggeredGridLayoutManager;
import android.os.Handler;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;//声明RecyclerView
    private RecycleAdapterDome adapterDome;//声明适配器
    private Context context;
    private List<String> list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        context = this;
        setContentView(R.layout.activity_main);
        recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
        list = new ArrayList<>();
        for (int i=1;i<=10;i++) {
            list.add("新闻" + i);
        }
        adapterDome = new RecycleAdapterDome(context,list);
        LinearLayoutManager manager = new LinearLayoutManager(context);
        manager.setOrientation(LinearLayoutManager.VERTICAL);
        recyclerView.setLayoutManager(manager);
        recyclerView.setAdapter(adapterDome);

        adapterDome.setOnItemClickListener(new RecycleAdapterDome.OnItemClickListener() {
            public void onItemClick(int position) {
                switch (position) {
                    case 0:
                        Intent intent = new Intent(context, new1.class);
                        break;
                }
            }

        });
    }
}

结果展示

gitee代码地址

项目gitee代码