Android Dialog对话框详解

效果如下：

自定义dialog：

private void customDialogDemo() {
final AlertDialog dlg = new AlertDialog.Builder(this).create();
dlg.show();
Window window = dlg.getWindow();
window.setContentView(R.layout.diylayout);
ImageButton ok = (ImageButton) window.findViewById(R.id.btnok);
ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "关闭了",
Toast.LENGTH_SHORT).show();
dlg.dismiss();
}
});
}

自定义布局：

<?xml version="." encoding="utf-"?>
<RelativeLayout xmlns:android="http://www.easck.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="@+id/dialogimg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:src="@drawable/dialog_bg" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@id/dialogimg"
android:layout_alignTop="@id/dialogimg"
android:layout_marginLeft="dp"
android:layout_marginTop="dp"
android:text="自定义的dialog" />
<ImageButton
android:id="@+id/btnok"
android:layout_width="dp"
android:layout_height="dp"
android:layout_alignRight="@id/dialogimg"
android:layout_alignTop="@id/dialogimg"
android:layout_marginRight="dp"
android:layout_marginTop="dp"
android:background="@drawable/close_dialog" />
</RelativeLayout>