AlertDialog的使用

ex:


AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
     AddFoodActivity.this);
   
alertDialogBuilder.setTitle("選擇來源");
   
 
alertDialogBuilder.setCancelable(true)
    .setPositiveButton("拍照",new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog,int id) {
    // if this button is clicked, close
    // current activity
    Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(i, CAPTURE_IMAGE_ACTIVITY_REQ );
    }
     })
    .setNeutralButton("相簿",new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog,int id) {
    // if this button is clicked, just close
    // the dialog box and do nothing
    Intent i = new Intent(Intent.ACTION_GET_CONTENT);
    i.setType("image/*");
    startActivityForResult(i, ALBUM_IMAGE_ACTIVITY_REQ );
    }
    })
    .setNegativeButton("取消", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog,int id) {
    // if this button is clicked, just close
    // the dialog box and do nothing
    dialog.cancel();
    }
    });
   
AlertDialog alertDialog = alertDialogBuilder.create();
   
alertDialog.show();

建立list單選的dialog:


final CharSequence[] items = {"靜態活動(大部份時間都坐著)", "輕度活動(每天散步的人)", "中度活動(每天做劇烈運動的人)",
"重度活動(參與每日體育訓練的人)" };

AlertDialog.Builder builder = new AlertDialog.Builder(this);
     

builder.setTitle("工作活動量")
          .setItems(items, new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int which) {
              // The 'which' argument contains the index position
              // of the selected item
             
          }
   });
AlertDialog alertDialog = builder.create();
alertDialog.show();