用Android Studio写一个流量监控程序，可以在另一个界面实现分时间段查询流量使用情况和流量统计，发送完整代码

好的，以下是一个简单的流量监控程序的完整代码：

MainActivity.java

import android.content.Intent;
import android.net.TrafficStats;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private int uid;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        uid = android.os.Process.myUid();
    }

    public void onTimeButtonClick(View view) {
        long startTime = System.currentTimeMillis() - 1000 * 60 * 60;
        long endTime = System.currentTimeMillis();

        long rxBytes = TrafficStats.getTotalRxBytes() - TrafficStats.getUidRxBytes(uid, startTime, endTime);
        long txBytes = TrafficStats.getTotalTxBytes() - TrafficStats.getUidTxBytes(uid, startTime, endTime);

        TextView text = findViewById(R.id.text);
        text.setText("当前时间段内的流量使用情况：\n接收：" + rxBytes + " 字节\n发送：" + txBytes + " 字节");
    }

    public void onTotalButtonClick(View view) {
        long totalRxBytes = TrafficStats.getTotalRxBytes();
        long totalTxBytes = TrafficStats.getTotalTxBytes();

        TextView text = findViewById(R.id.text);
        text.setText("总的流量使用情况：\n接收：" + totalRxBytes + " 字节\n发送：" + totalTxBytes + " 字节");
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main_menu, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.menu_statistics:
                Intent intent = new Intent(this, StatisticsActivity.class);
                startActivity(intent);
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:textSize="18sp" />

    <Button
        android:id="@+id/time_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:text="时间段查询"
        android:onClick="onTimeButtonClick" />

    <Button
        android:id="@+id/total_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="总流量查询"
        android:onClick="onTotalButtonClick" />

</LinearLayout>

StatisticsActivity.java

import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

import androidx.appcompat.app.AppCompatActivity;

public class StatisticsActivity extends AppCompatActivity {

    private SQLiteDatabase db;
    private SimpleCursorAdapter adapter;
    private ListView listView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_statistics);

        listView = findViewById(R.id.list_view);

        db = new TrafficStatisticsDbHelper(this).getWritableDatabase();

        Cursor cursor = db.rawQuery("SELECT * FROM traffic_statistics ORDER BY id DESC", null);
        adapter = new SimpleCursorAdapter(this, R.layout.list_item, cursor,
                new String[] { "start_time", "end_time", "rx_bytes", "tx_bytes" },
                new int[] { R.id.text1, R.id.text2, R.id.text3, R.id.text4 }, 0);
        listView.setAdapter(adapter);
    }

    public void onClearButtonClick(View view) {
        db.delete("traffic_statistics", null, null);
        adapter.changeCursor(db.rawQuery("SELECT * FROM traffic_statistics ORDER BY id DESC", null));
    }
}

activity_statistics.xml

<?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:padding="16dp">

    <ListView
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:divider="#cccccc"
        android:dividerHeight="1dp"
        android:padding="16dp"
        android:textSize="18sp" />

    <Button
        android:id="@+id/clear_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="清空记录"
        android:onClick="onClearButtonClick" />

</LinearLayout>

list_item.xml

<?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="wrap_content"
    android:orientation="horizontal"
    android:padding="8dp">

    <TextView
        android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp" />

    <TextView
        android:id="@+id/text2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:layout_marginStart="16dp" />

    <TextView
        android:id="@+id/text3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:layout_marginStart="16dp" />

    <TextView
        android:id="@+id/text4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:layout_marginStart="16dp" />

</LinearLayout>

TrafficStatisticsDbHelper.java

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class TrafficStatisticsDbHelper extends SQLiteOpenHelper {

    private static final int DATABASE_VERSION = 1;
    private static final String DATABASE_NAME = "traffic_statistics.db";

    public TrafficStatisticsDbHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("CREATE TABLE traffic_statistics (" +
                "id INTEGER PRIMARY KEY AUTOINCREMENT, " +
                "start_time INTEGER, " +
                "end_time INTEGER, " +
                "rx_bytes INTEGER, " +
                "tx_bytes INTEGER" +
                ")");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }

}

注意：为了让代码更加清晰，省略了一些异常处理和注释。在实际开发中，请务必添加适当的异常处理和注释。