我仍然可以在API中使用Android中的AlertDialog API 17嗎？

Question

在以下示例中，我已棄用onCreateDialog和showDialog。

package com.dialogtest; 

import android.app.Dialog; 
import android.app.AlertDialog; 
import android.content.DialogInterface; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.widget.Toast; 

public class MainActivity extends AppCompatActivity { 

    CharSequence[] items = {"Google", "Apple", "Microsoft"}; 

    // Declare the boolean array of same size as items 
    boolean[] itemsChecked = new boolean[items.length]; 

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

    public void onClick(View v) { 
     showDialog(1); 
    } 

    @Override 
    protected Dialog onCreateDialog(int id) { 

     switch (id) { 

      case 1: 
       return new AlertDialog.Builder(this) 
         //.setIcon(R.drawable.ic_launcher) 
         .setTitle("This is a dialog with some simple text...") 
         .setPositiveButton("OK", 
           new DialogInterface.OnClickListener() { 

            public void onClick(DialogInterface dialog, int whichButton) { 
             Toast.makeText(getBaseContext(), 
               "OK clicked!", Toast.LENGTH_SHORT).show(); 
            } 
           } 
         ) 

         .setNegativeButton("Cancel", 
           new DialogInterface.OnClickListener() { 
            public void onClick(DialogInterface dialog, int whichButton) { 
             Toast.makeText(getBaseContext(), 
               "Cancel clicked!", Toast.LENGTH_SHORT).show(); 
            } 
           } 
         ) 

         .setMultiChoiceItems(items, itemsChecked, 
           new DialogInterface.OnMultiChoiceClickListener() { 
            public void onClick(DialogInterface dialog, 
                 int which, boolean isChecked) { 
             Toast.makeText(getBaseContext(), 
               items[which] + (isChecked ? " checked!" : " unchecked!"), 
               Toast.LENGTH_SHORT).show(); 
            } 
           } 
         ).create(); 


     } 
     return null; 
    } 
} 

我被建議使用DialogFragment，但我不太確定。

所以我想知道是不是可以直接使用AlertDialog了？

Answer 1

按照reference docs AlertDialog是對話的一個子類，它可以顯示一個，兩個或三個按鈕。

在您的情況使用下面的代碼：

public void onClick(View v) { 
    AlertDialog.Builder alertDialog = new AlertDialog.Builder(ExampleActivity.this); 
      //.setIcon(R.drawable.ic_launcher) 
    alertDialog.setTitle("This is a dialog with some simple text...") 
    .setPositiveButton("OK", new DialogInterface.OnClickListener() { 
         public void onClick(DialogInterface dialog, int whichButton) { 
          Toast.makeText(getBaseContext(), 
            "OK clicked!", Toast.LENGTH_SHORT).show(); 
         } 
        } 
      ) 
    .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { 
         public void onClick(DialogInterface dialog, int whichButton) { 
          Toast.makeText(getBaseContext(), 
            "Cancel clicked!", Toast.LENGTH_SHORT).show(); 
         } 
        } 
      ) 
      .setMultiChoiceItems(items, itemsChecked, new DialogInterface.OnMultiChoiceClickListener() { 
         public void onClick(DialogInterface dialog, 
              int which, boolean isChecked) { 
          Toast.makeText(getBaseContext(), 
            items[which] + (isChecked ? " checked!" : " unchecked!"), 
            Toast.LENGTH_SHORT).show(); 
         } 
        } 
      .show(); 
} 

Answer 2

你應該使用警告對話框與appcompact版本單擊Here