3.22

所花时间：2小时

代码量：223

博客篇：1

android stdio表格的使用

编写MyTableTextView类重写onDraw方法

package com.example.studyapplication;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.widget.TextView;

/**
 * 自定义TextView
 */
public class MyTableTextView extends androidx.appcompat.widget.AppCompatTextView {

    Paint paint = new Paint();

    public MyTableTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        int color = Color.parseColor("#80b9f2");
        // 为边框设置颜色
        paint.setColor(color);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        // 画TextView的4个边
        canvas.drawLine(0, 0, this.getWidth() - 1, 0, paint);
        canvas.drawLine(0, 0, 0, this.getHeight() - 1, paint);
        canvas.drawLine(this.getWidth() - 1, 0, this.getWidth() - 1, this.getHeight() - 1, paint);
        canvas.drawLine(0, this.getHeight() - 1, this.getWidth() - 1, this.getHeight() - 1, paint);
    }
}

　　

主活动的xml

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

    <Button
        android:id="@+id/bt_check"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="查询"/>

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true"
        android:scrollbars="none"
        >

        <HorizontalScrollView
            android:id="@+id/scroll_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbarAlwaysDrawHorizontalTrack="false"
            android:scrollbars="none">

            <LinearLayout
                android:id="@+id/MyTable"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="9dp"
                android:orientation="vertical"
                >
            </LinearLayout>

        </HorizontalScrollView>
    </ScrollView>
</LinearLayout>

　　

主活动：

package com.example.studyapplication;

import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

import java.sql.SQLException;

public class recordStats extends AppCompatActivity implements View.OnClickListener {

    private LinearLayout mainLinerLayout;
    private Button bt_check;
    private RelativeLayout relativeLayout;
    private Record[] r=new Record[100];
    private String[] name={"序号","学号","姓名","班级","开始时间","结束时间","学习记录"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_record_stats);
        bt_check = findViewById(R.id.bt_check);
        for(int i=0;i<100;i++){
            r[i]=new Record();
        }
        mainLinerLayout = (LinearLayout) this.findViewById(R.id.MyTable);
        initData();
        bt_check.setOnClickListener(this);
    }

    //绑定数据
    private void initData() {
        //初始化标题
        relativeLayout = (RelativeLayout) LayoutInflater.from(recordStats.this).inflate(R.layout.table, null);
        MyTableTextView title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_1);
        title.setText(name[0]);
        title.setTextColor(Color.BLUE);

        title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_2);
        title.setText(name[1]);
        title.setTextColor(Color.BLUE);
        title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_3);
        title.setText(name[2]);
        title.setTextColor(Color.BLUE);
        title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_4);
        title.setText(name[3]);
        title.setTextColor(Color.BLUE);
        title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_5);
        title.setText(name[4]);
        title.setTextColor(Color.BLUE);
        title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_6);
        title.setText(name[5]);
        title.setTextColor(Color.BLUE);
        title = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_7);
        title.setText(name[6]);
        title.setTextColor(Color.BLUE);
        mainLinerLayout.addView(relativeLayout);
        new Thread(new Runnable() {
            @Override
            public void run() {
                Dao d =new Dao();
                try {
                    r=d.checkRecord();
                } catch (SQLException e) {
                    throw new RuntimeException(e);
                }
            }
        }).start();
        //初始化内容

    }
    @Override
    public void onClick(View v) {
        Log.d("www", r[0].getId());
        int number = 1;
        int i=0;
        while (r[i].getId()!=null){
            relativeLayout = (RelativeLayout) LayoutInflater.from(recordStats.this).inflate(R.layout.table, null);
            MyTableTextView txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_1);
            txt.setText(String.valueOf(number));

            txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_2);
            txt.setText(r[i].getId());
            txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_3);
            txt.setText(r[i].getName());
            txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_4);
            txt.setText(r[i].getUnit());
            txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_5);
            txt.setText(r[i].getStarttime());
            txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_6);
            txt.setText(r[i].getEndtime());
            txt = (MyTableTextView) relativeLayout.findViewById(R.id.list_1_7);
            txt.setText(r[i].getRecord());
            Log.d("www", "onClick: ");
            mainLinerLayout.addView(relativeLayout);
            number++;
            i++;
        }
    }
}