110.16作业

@[toc] 作业

注册

activity——注册

package com.example.day1016_homework;

import android.app.Notification;
import android.app.NotificationManager;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.example.day1016_homework.sql.MySHelper;
import com.example.day1016_homework.sql.MySqlHelper;

import java.util.regex.Pattern;

public class Main2Activity extends AppCompatActivity {

    private ContentResolver resolver, resolver1;
    private Uri uri, uri1;
    private EditText numRes;
    private EditText valRes;
    private Button butRes;
    private EditText pwdTes;
    private Button resBut;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        numRes = (EditText) findViewById(R.id.num_res);
        valRes = (EditText) findViewById(R.id.val_res);
        butRes = (Button) findViewById(R.id.but_res);
        pwdTes = (EditText) findViewById(R.id.pwd_tes);
        resBut = (Button) findViewById(R.id.res_but);

        resolver = getContentResolver();
        resolver1 = getContentResolver();

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            requestPermissions(new String[]{android.Manifest.permission.READ_CONTACTS, android.Manifest.permission.WRITE_CONTACTS}, 100);
        } else {
        }

        uri = Uri.parse("content://com.li.sql");
        uri1 = Uri.parse("content://com.li.sqll");

        init();

    }

    private void init() {
         String num = numRes.getText().toString();
        if (num != null) {
            butRes.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int floor = (int) Math.floor(Math.random() * 10);
                    String s = "" + floor;
                    String sql = "select * from val_i where id = ?";
                    Cursor cursor = resolver.query(uri, new String[]{}, null, null, null);
                    if (cursor != null) {
                        while (cursor.moveToNext()) {
                            String number = cursor.getString(cursor.getColumnIndex("number"));
                            valRes.setText(number);

                            Notification build = new Notification.Builder(Main2Activity.this).setSmallIcon(R.mipmap.pic2).setContentText(number).build();
                            NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
                            manager.notify(1, build);
                        }
                    }
                }
            });
        }

        resBut.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String pwd = pwdTes.getText().toString();
                String ssi = numRes.getText().toString();


                String regex = "[A-Za-z0-9]{6,16}";
                Pattern compile = Pattern.compile(regex);
                boolean matches = compile.matcher(pwd).matches();

                if (matches) {
                    ContentValues values = new ContentValues();
                    values.put("phone", ssi);
                    values.put("password", pwd);
                    resolver1.insert(uri1, values);
                    Toast.makeText(Main2Activity.this, "安抚", Toast.LENGTH_SHORT).show();
                    Intent intent = new Intent(Main2Activity.this, MainActivity.class);
                    startActivity(intent);
                }
            }
        });

    }
}

提供者

package com.example.day1016_homework.provider;

import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;

import com.example.day1016_homework.sql.MySqlHelper;

public class MyProvider1 extends ContentProvider {
    private MySqlHelper mySqlHelper;
    private SQLiteDatabase database;


    public MyProvider1() {
    }

    @Override
    public int delete(Uri uri, String selection, String[] selectionArgs) {
        return database.delete("user",selection,selectionArgs);
    }

    @Override
    public String getType(Uri uri) {
        return  null;
    }

    @Override
    public Uri insert(Uri uri, ContentValues values) {

        database.insert("user",null,values);
        return uri;
    }

    @Override
    public boolean onCreate() {
        mySqlHelper = new MySqlHelper(getContext(), "Val.db", null, 1);
        database = mySqlHelper.getReadableDatabase();
        return false;
    }

    @Override
    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
        Cursor cursor = database.query("user", projection, selection, selectionArgs, sortOrder, null, null);
        return cursor;
    }

    @Override
    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
        return database.update("user",values,selection,selectionArgs);
    }
}

帮助类

package com.example.day1016_homework.sql;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.support.annotation.Nullable;

public class MySHelper extends SQLiteOpenHelper {
    public MySHelper(@Nullable Context context, @Nullable String name, @Nullable SQLiteDatabase.CursorFactory factory, int version) {
        super(context, name, factory, version);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {

    }

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

    }
}

登录

activity

package com.example.day1016_homework;

import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    private EditText username;
    private EditText password;
    private Button login;
    private ContentResolver resolver1;
    private Uri uri1;


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

        username = (EditText) findViewById(R.id.username);
        password = (EditText) findViewById(R.id.password);
        login = (Button) findViewById(R.id.login);

        resolver1 = getContentResolver();

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            requestPermissions(new String[]{android.Manifest.permission.READ_CONTACTS, android.Manifest.permission.WRITE_CONTACTS}, 100);
        } else {
        }
        uri1 = Uri.parse("content://com.li.sqll");


        final String name = username.getText().toString();
        final String pwd = password.getText().toString();

        login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Cursor cursor = resolver1.query(uri1, null, null, null, null);
                if(cursor != null){
                    while (cursor.moveToNext()){
                        String phone = cursor.getString(cursor.getColumnIndex("phone"));
                        String pword = cursor.getString(cursor.getColumnIndex("password"));

//                        if(phone.equals(name)&& pwd.equals(pword) ){
                            Intent intent = new Intent(MainActivity.this, Main3Activity.class);
                            startActivity(intent);
                            finish();
//                        }

                    }
                    Toast.makeText(MainActivity.this, "阿萨德刚发货", Toast.LENGTH_SHORT).show();
                }
            }
        });


    }
}