2020年10月2日 星期五

[Android]ch5.5_AlertDialog單選方塊

[Android]ch5.5_AlertDialog單選方塊
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1 則留言:

  1. case 2:
    String items[]={"紅色","綠色","藍色","紫色"};
    DialogInterface.OnClickListener OCL=new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
    switch(which){
    case 0:
    layout.setBackgroundColor(Color.RED);
    break;
    case 1:
    layout.setBackgroundColor(Color.GREEN);
    break;
    case 2:
    layout.setBackgroundColor(Color.BLUE);
    break;
    case 3:
    layout.setBackgroundColor(new Color().rgb(255, 0, 255));
    break;
    }
    }
    };
    return new AlertDialog.Builder(MainActivity.this)
    .setTitle("設定顏色")
    .setCancelable(false)
    .setIcon(R.drawable.ic_launcher)
    .setItems(items, OCL)
    .setPositiveButton("確定", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
    finish();
    }
    })
    .setNegativeButton("取消", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
    dialog.cancel();
    }
    })
    .show();

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