Android，SeekBar在对话框中 [英] Android, SeekBar in dialog

问题描述

我想在我的应用程序中使用一个与搜索栏的对话框。
但是我真的不知道如何做，因为我没有Android的经验。

I would like to use a dialog with a seekbar in my application. But I don't really know how to do it because I lack experience with android.

所以，当你按一个按钮：一个对话框应该出现用一个搜索栏，用户可以输入一个值，然后按OK按钮。

So, when you press a button: a dialog should come up, with a seekbar and the user is able to enter a value and then press OK-button.

目前我所拥有的代码是由developer.android提供的默认代码：

The code I have at the moment is the default code by developer.android:

AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Are you sure you want to exit?")
        .setCancelable(false)
       .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
           public void onClick(DialogInterface dialog, int id) {
                MyActivity.this.finish();
       }
   })
   .setNegativeButton("No", new DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int id) {
            dialog.cancel();
       }
   });
AlertDialog alert = builder.create();

如何添加 SeekBar ？

谢谢！

推荐答案

也许你可以想到创建一个自定义对话框它需要更多的工作，但通常适用于我;）
为您的对话框创建一个新的布局文件（例如，your_dialog.xml）：

Maybe you could think of create a custom dialog; it requires more work but it usually works for me ;) Create a new layout file for your dialog (say, your_dialog.xml):

<RelativeLayout
android:id="@+id/your_dialog_root_element"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>

<SeekBar
    android:id="@+id/your_dialog_seekbar"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    >
</SeekBar>

<Button
    android:id="@+id/your_dialog_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    >
</Button>

然后，在您的活动中：

Then, in your activity:

Dialog yourDialog = new Dialog(this);
LayoutInflater inflater = (LayoutInflater)this.getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.your_dialog, (ViewGroup)findViewById(R.id.your_dialog_root_element));
yourDialog.setContentView(layout);

因此，您可以按照以下方式对您的元素进行操作：

Thus, you can operate on your element as follows:

Button yourDialogButton = (Button)layout.findViewById(R.id.your_dialog_button);
SeekBar yourDialogSeekBar = (SeekBar)layout.findViewById(R.id.your_dialog_seekbar);
// ...

等等，设置按钮和搜索栏的侦听器。

and so on, to set listeners for button and seekbar.

编辑：
更改的查找器应如下所示：

The seekbar onchangelistener should be as follows:

OnSeekBarChangeListener yourSeekBarListener = new OnSeekBarChangeListener() {
    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
            //add code here
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
            //add code here
    }

    @Override
    public void onProgressChanged(SeekBar seekBark, int progress, boolean fromUser) {
            //add code here
    }
 };
 yourDialogSeekBar.setOnSeekBarChangeListener(yourSeekBarListener);

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