Android Internet of things application development (smart Park) - picture preview interface

Hello everyone , I meet you again , I'm your friend, Quan Jun .

design sketch ：

Implementation steps ：

1、 First, in the build.gradle Introduce in the file RecycleView

implementation 'com.android.support:recyclerview-v7:28.0.0'

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When I'm done , There is a synchronization in the upper right corner Sync Now A hint of , Click to synchronize the build , I'm going to modify activity_main.xml Code for

2、 stay activity_main.xml Add... To the layout file RecyclerView

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </android.support.v7.widget.RecyclerView>
</LinearLayout>

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Then create a RecyclerView List item layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="400dp"
    android:gravity="center">

    <TextView
        android:id="@+id/time"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:gravity="center" />

    <View
        android:layout_width="1dp"
        android:layout_height="fill_parent"
        android:background="#c0c0c0" />

    <ImageView
        android:id="@+id/image"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_margin="4dp"
        android:layout_weight="2"
        android:scaleType="fitCenter"
        android:src="@drawable/image1" />
</LinearLayout>

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3、 Then create RecyclerView Data adapter for

package com.newland.project3_4;

import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

public class MonitorAdapter extends RecyclerView.Adapter<MonitorAdapter.ViewHolder> {
    private String[] times = {"2019 year 5 month 9 Japan 17 when 14 branch 30 second ", "2019 year 5 month 9 Japan 17 when 15 branch 30 second ", "2019 year 5 month 9 Japan 18 when 30 branch 30 second ", "2019 year 5 month 9 Japan 18 when 40 branch 30 second ", "2019 year 5 month 10 Japan 17 when 14 branch 30 second "};
    private int[] imageIds = {R.drawable.image1,R.drawable.image2,R.drawable.image3,R.drawable.image4,R.drawable.image5};

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_item, parent, false);
        ViewHolder holder = new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        holder.image.setImageResource(imageIds[position]);
        holder.time.setText(times[position]);
    }

    @Override
    public int getItemCount() {
        return times.length;
    }

    static class ViewHolder extends RecyclerView.ViewHolder {
        private ImageView image;// picture 
        private TextView time;// Time 

        public ViewHolder(View v) {
            super(v);
            image = v.findViewById(R.id.image);
            time = v.findViewById(R.id.time);
        }
    }
}

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The last set RecyclerView Adapter for

package com.newland.project3_4;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        recyclerView = findViewById(R.id.recycler_view);
        // Create a linear layout manager , Vertical direction 
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
        //recyclerView Set up the layout manager 
        recyclerView.setLayoutManager(linearLayoutManager);
        MonitorAdapter adapter = new MonitorAdapter();
        // add to Android Its own split line 
        recyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));
        // Setup adapter 
        recyclerView.setAdapter(adapter);
    }
}

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