通過不同的按鈕在單個列表視圖上的多個列表

Question

我試圖通過不同的按鈕在單個列表視圖上使用多個數據，如從activity1有兩個按鈕，如果在activity2上單擊button1它顯示不同的數據，如果button2是然後點擊數據差異分別

//main 

public class MainActivity extends ActionBarActivity { 


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

    Button b1 = (Button) findViewById(R.id.button1); 
    Button b2 = (Button) findViewById(R.id.button2); 

    b1.setOnClickListener(new OnClickListener() { 


     @Override 
     public void onClick(View arg0) { 
      // TODO Auto-generated method stub 
      startActivity(new Intent(MainActivity.this, NEXT.class)); 

     } 


    }); 

    b2.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 
      // TODO Auto-generated method stub 
      startActivity(new Intent(MainActivity.this, NEXT.class)); 

     } 
    }); 

} 
} 

//for second activity 
public class NEXT extends ListActivity { 


@Override 
protected void onCreate(Bundle savedInstanceState) { 

    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.next); 

    if (R.id.button1 == clicked) //did onClick="clicked" 
    { 
    setListAdapter(new ArrayAdapter<String>(this, 
      android.R.layout.simple_list_item_1, 
      getResources().getStringArray(R.array.acceptors))); 
    } 
    else 
    { 
     setListAdapter(new ArrayAdapter<String>(this, 
        android.R.layout.simple_list_item_1, 
        getResources().getStringArray(R.array.donars))); 
    } 

} 
} 

Answer 1

您應該使用Intent類的putExtra()方法。把布爾額外你MainActivity與關鍵acceptors：

public class MainActivity extends ActionBarActivity { 

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

     Button b1 = (Button) findViewById(R.id.button1); 
     Button b2 = (Button) findViewById(R.id.button2); 

     b1.setOnClickListener(new OnClickListener() { 


      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
       startActivity(new Intent(MainActivity.this, NEXT.class).putExtra("acceptors", true); 

      } 


     }); 

     b2.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
       startActivity(new Intent(MainActivity.this, NEXT.class).putExtra("acceptors", false)); 

      } 
     }); 

    } 
} 

然後在你的NEXT活動，獲得意向，並檢查您是否得到受體或捐助者：

public class NEXT extends ListActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.next); 
     boolean isAcceptors = getIntent().getBooleanExtra("acceptors", false); 

     if (isAcceptors) //did onClick="clicked" 
     { 
      setListAdapter(new ArrayAdapter<String>(this, 
       android.R.layout.simple_list_item_1, 
       getResources().getStringArray(R.array.acceptors))); 
     } 
     else 
     { 
      setListAdapter(new ArrayAdapter<String>(this, 
        android.R.layout.simple_list_item_1, 
        getResources().getStringArray(R.array.donars))); 
     } 

    } 
}