試圖獲得一個alertdialog基於選擇的選項

基於更改textview我希望對話框根據所選的選項顯示正確的文本（即如果按下兩個我想顯示文本「你按兩個」）試圖獲得一個alertdialog基於選擇的選項

第一按下它似乎什麼也不做文字進入到初始化第二按你找出文本切換到默認

我是新來的Android和我不認爲我明白了什麼活動正在這裏做。有人可以幫我找到一種有效的方法嗎？

public class AndMainT extends Activity { 
private GameLogicT myGame = new GameLogicT(); 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    Button b_com = (Button)findViewById(R.id.button); 
    b_com.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      CharSequence[] pick_one = {"ONE", "TWO", "THREE"}; 
      call_menu(pick_one); 
      updateAwesomeText(); 
     } 
    }); 
} 

public void updateAwesomeText(){ 
    TextView newText = (TextView)findViewById(R.id.text); 
    newText.setText(myGame.getCurrent_opt().getDescription() + "\n"); 
} 

public void call_menu(CharSequence[] items){ 
    final CharSequence[] f_items = items; 

    AlertDialog.Builder builder = new AlertDialog.Builder(this); 
    builder.setTitle("Orders Captain?"); 
    builder.setItems(f_items, new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int item) { 
      myGame.startOpt(item); 
     } 
    }); 
    builder.show(); 
} 
} 


public class GameLogicT { 
class GOpt{ 
    private CharSequence description = "this is the intialized text sadface"; 

    public CharSequence getDescription() { 
     return description; 
    } 
    public void setDescription(CharSequence description) { 
     this.description = description; 
    } 
} 

private GOpt current_opt = new GOpt(); 

public void startOpt(int item){ 
    switch(item){ 
    case 1: 
     current_opt.setDescription("you pressed ONE"); 
    case 2: 
     current_opt.setDescription("you pressed TWO"); 
    case 3: 
     current_opt.setDescription("you pressed THREE"); 
    default: 
     current_opt.setDescription("I am a fart and think you have pressed nothing sadface"); 
    } 
} 

public GOpt getCurrent_opt() { 
    return current_opt; 
} 
public void setCurrent_opt(GOpt current_opt) { 
    this.current_opt = current_opt; 
} 
}

我也試過

public void onClick(View v) { 
     CharSequence[] pick_one = {"ONE", "TWO", "THREE"}; 
     call_menu(pick_one); 
     try { 
       wait(); 
      } catch (InterruptedException e) { 
       e.printStackTrace(); 
      } 
     updateAwesomeText(); 
    } 

    public void onClick(DialogInterface dialog, int item) { 
     myGame.startOpt(item); 
     notify(); 
    }

這會導致當按下按鈕部隊密切，這不是我的問題，只是說我盡力了！

來源

2011-07-15 Jill

logcat說什麼？！ – binnyb

關於力量關閉？ – Jill

抱歉，由於很多工作，我無法測試您的代碼。然而，服用後一看，我注意到以下幾點：

1）我覺得項目的那個位置從指數0開始2 ）也許你失去了一些break在switch-case聲明

所以，試圖取代它與：

public void startOpt(int item){ 
    switch(item){ 

    case 0: 
     current_opt.setDescription("you pressed ONE"); 
    break; 

    case 1: 
     current_opt.setDescription("you pressed TWO"); 
    break; 

    case 2: 
     current_opt.setDescription("you pressed THREE"); 
    break; 

    default: 
     current_opt.setDescription("I am a fart and think you have pressed nothing sadface"); 
    } 
}

希望它可以幫助你！

來源

2011-07-19 17:18:52 Davide76

試圖獲得一個alertdialog基於選擇的選項

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