关于对话框dialog的使用以及dialog的继承

关于对话框dialog的使用以及dialog的继承
beerwine.xml

<?xml version="1.0" encoding="utf-8"?>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:stretchColumns="0"
android:background="@drawable/bg" android:layout_gravity="center_vertical|center_horizontal"
android:layout_height="wrap_content" android:layout_width="wrap_content">

<TableRow>
   <TextView android:textColor="#ffffff" android:text="beer:"
      android:textSize="16px" android:layout_marginLeft="6dip"
      android:layout_gravity="center_vertical" />
   <CheckBox android:id="@+id/checkboxBeer"
      android:layout_gravity="right|top" />
</TableRow>

<TableRow>
   <TextView android:textColor="#ffffff" android:text="wine:"
      android:textSize="16px" android:layout_marginLeft="6dip"
      android:layout_gravity="center_vertical" />
   <CheckBox android:id="@+id/checkboxWine"
      android:layout_gravity="right|top" />
</TableRow>

<TableRow android:layout_marginTop="230px">
   <Button android:id="@+id/buttonOK" android:text="ok"
      android:layout_height="wrap_content" android:layout_width="wrap_content" />
</TableRow>
</TableLayout>
public class Second extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);

   Dialog dialog = new Dialog(this);
   dialog.setContentView(R.layout.beerwine);
   dialog.setTitle("beer or wine");
   dialog.show();
}
}
上面的代码实现了那张图片的功能，其中图片中的酒杯是作为背景出现的并不存在一个vimageView

主要 dialog.setContentView(R.layout.beerwine); 的使用。

如果继续使用点击事件

public class Second extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);

   Dialog dialog = new Dialog(this);
   dialog.setContentView(R.layout.beerwine);
   dialog.setTitle("beer or wine");
   dialog.show();

   Button buttonOK = (Button) dialog.findViewById(R.id.buttonOK);
   buttonOK.setOnClickListener(new OKListener(dialog));
}

protected class OKListener implements OnClickListener {

   private Dialog dialog;

   public OKListener(Dialog dialog) {
      this.dialog = dialog;
   }

   public void onClick(View v) {
      dialog.dismiss();
   }
}
}

这里面一定要注意Button buttonOK = (Button) dialog.findViewById(R.id.buttonOK);
是通过dialog引用出button其实你也可以用inflater的。

3.如果想继续扩展添加选择框的选择事件

public class Third extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);

   BeerWineDialog dialog = new BeerWineDialog(this, true, true);
   dialog.show();
}
}

public class BeerWineDialog extends Dialog {

private boolean beer;
private boolean wine;

public BeerWineDialog(Context context, boolean beer, boolean wine) {
   super(context);
   this.beer = beer;
   this.wine = wine;
}

@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);

   setContentView(R.layout.beerwine);
   setTitle("beer or wine");

   CheckBox cbBeer = (CheckBox) findViewById(R.id.checkboxBeer);
   cbBeer.setChecked(beer);

   CheckBox cbWine = (CheckBox) findViewById(R.id.checkboxWine);
   cbWine.setChecked(wine);

   Button buttonOK = (Button) findViewById(R.id.buttonOK);
   buttonOK.setOnClickListener(new OKListener());
}

private class OKListener implements android.view.View.OnClickListener {

   @Override
   public void onClick(View v) {
      BeerWineDialog.this.dismiss();
   }
}

}
这也呢最终继承了一个dialog控件

关于对话框dialog的使用以及dialog的继承

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