如何在Android片段中顯示來自MySQL數據庫的數據行？

我想爲我的學校建立一個食物菜單應用程序。我將每週都進入一個MySQL數據庫。我的應用程序有一個選項卡式視圖，每個片段代表一週中的某一天。如何在Android片段中顯示來自MySQL數據庫的數據行？

我希望能夠在相應的片段上顯示相應的一天的菜單。

MainActivity.java

package me.anshsehgal.lunchmenu; 

import android.content.Intent; 
import android.support.v4.app.Fragment; 
import android.support.design.widget.TabLayout; 
import android.support.v4.view.ViewPager; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.support.v7.widget.Toolbar; 

import android.app.FragmentManager; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.widget.RelativeLayout; 

public class MainActivity extends AppCompatActivity { 

    Toolbar toolbar; 
    TabLayout tabLayout; 
    ViewPager viewPager; 
    ViewPagerAdapter viewPagerAdapter; //make all the variables 

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

     toolbar = (Toolbar)findViewById(R.id.toolBar); 
     setSupportActionBar(toolbar); 
     tabLayout = (TabLayout)findViewById(R.id.tabLayout); 
     viewPager = (ViewPager)findViewById(R.id.viewPager); //reference them 
     viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager()); 
     viewPagerAdapter.addFragments(new HomeFragment(),"M"); 
     viewPagerAdapter.addFragments(new MondayFragment(),"Tue"); 
     viewPagerAdapter.addFragments(new TuesdayFragment(),"W"); 
     viewPagerAdapter.addFragments(new WednesdayFragment(),"Thu"); 
     viewPagerAdapter.addFragments(new ThursdayFragment(),"F"); //adding fragments to view page adapter 


     viewPager.setAdapter(viewPagerAdapter); 
     tabLayout.setupWithViewPager(viewPager); 


    } 

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

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     RelativeLayout main_view = (RelativeLayout)findViewById(R.id.anshLayout); 

     switch (item.getItemId()){ 
      case R.id.action_settings: 
       if(item.isChecked()) 
        item.setChecked(false); 
       else 
        item.setChecked(true); 
       Intent i = new Intent(this,Settings.class); 
       startActivity(i); 
       return true; 
      default: 
       return super.onOptionsItemSelected(item); 
     } 
} 

}

MondayFragment.java

package me.anshsehgal.lunchmenu; 


import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 


/** 
* A simple {@link Fragment} subclass. 
*/ 
public class MondayFragment extends Fragment { 


    public MondayFragment() { 
     // Required empty public constructor 
    } 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     return inflater.inflate(R.layout.fragment_monday, container, false); 
    } 

}

應用的截圖

Sample entry in table

來源

2016-06-21 asehgal17

不建議直接訪問我的SQL在Android應用lications。您需要構建其他API，以壓縮方式（JSON）顯示所需的數據。您可以使用任何編程語言（如Java/C＃/ Scala/Node）來公開其餘終點。

如果您嘗試存儲特定於用戶的數據，則可以使用sql lite數據庫

來源

2016-06-21 18:56:44

如何在Android片段中顯示來自MySQL數據庫的數據行？

回答

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