每日总结2.23

package com.example.dell.tiwen;

        import androidx.appcompat.app.AppCompatActivity;

        import android.content.ContentValues;
        import android.content.Intent;
        import android.database.Cursor;
        import android.database.sqlite.SQLiteDatabase;
        import android.database.sqlite.SQLiteOpenHelper;
        import android.os.Bundle;
        import android.os.Handler;
        import android.view.View;
        import android.widget.Button;
        import android.widget.EditText;
        import android.widget.ListView;
        import android.widget.Toast;

        import java.io.IOException;
        import java.text.SimpleDateFormat;
        import java.util.Date;
        import java.util.List;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    private Button tijiaobtn;
    private ListView lv;
    private Intent i;
    private Myadapter adapter;
    private TiwenDB tiwenDB;
    private SQLiteDatabase dbReader;
    private String str_location;
    private Handler handler_location = new Handler();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    public void initView(){
        lv=(ListView) findViewById(R.id.list);
        tijiaobtn=(Button)findViewById(R.id.tijiao);
        tijiaobtn.setOnClickListener(this);
        tiwenDB = new TiwenDB(this);
        dbReader = tiwenDB.getReadableDatabase();
    }
    public String getTime(){
        SimpleDateFormat format = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
        Date curDate = new Date();
        String str = format.format(curDate);
        return str;
    }

    @Override
    public void onClick(View v) {
        i=new Intent(this,addContent.class);
        i.putExtra("time",addContent.getTime());
        LocationUtil locationUtil = new LocationUtil();
        locationUtil.initLocation(getApplicationContext());
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    str_location= LocationUtil.getAddress(LocationUtil.location,getApplicationContext());
                    //位置信息-----一个字符串
                }catch (IOException e){
                    e.printStackTrace();
                }
                final String finalStr_location = str_location;
                handler_location.post(new Runnable() {
                    @Override
                    public void run() {
                        //Toast.makeText(getApplicationContext(), finalStr_location,Toast.LENGTH_LONG).show();
                    }
                });
            }
        }).start();
        i.putExtra("didian",str_location);
        startActivity(i);
    }

    public void selectDB(){
        Cursor cursor = dbReader.query(TiwenDB.TABLE_NAME,null,null,null,null,null,null);
        adapter = new Myadapter(this,cursor);
        lv.setAdapter(adapter);
    }

    @Override
    protected void onResume() {
        super.onResume();
        selectDB();
    }
}