本文实例讲述了Android编程中自定义dialog用法。分享给大家供大家参考,具体如下:
dialog是android中提供的一组弹出提示框,非常好用,可是它的样式是一个定式,有时候我们需求定义一些自己的样式
1、定义一个样式文件,此文件继承自Theme.Dialog,在style.xml文件中建立一个自己的样式
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< style name = "addNoteType_error_Dialog" parent = "@android:Theme.Dialog" >
< item name = "android:windowFrame" >@null</ item >
< item name = "android:windowNoTitle" >true</ item >
< item name = "android:windowBackground" >@color/color_shenhui</ item >
< item name = "android:windowIsFloating" >true</ item >
< item name = "android:windowContentOverlay" >@null</ item >
</ style >
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2、新建一个layout,做为弹出框的显示
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<? xml version = "1.0" encoding = "utf-8" ?>
< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:orientation = "vertical"
android:background = "#DFDFDF" >
< TextView
android:layout_width = "fill_parent"
android:layout_height = "50dp"
android:gravity = "center_vertical"
android:layout_marginLeft = "5dp"
android:text = "@string/txt_addnoteType_error_title"
android:textColor = "#00CCFF"
android:textSize = "18sp"
/>
< View
android:layout_width = "fill_parent"
android:layout_height = "1px"
android:background = "#00CCFF"
/>
< TextView
android:layout_width = "fill_parent"
android:layout_height = "50dp"
android:gravity = "left|center"
android:layout_marginTop = "5dp"
android:text = "@string/txt_addnoteType_error_content_null"
/>
< View
android:layout_width = "fill_parent"
android:layout_height = "1px"
android:background = "#BBB9BA"
android:layout_marginTop = "5dp"
/>
< Button
android:id = "@+id/btn_add_note_addnotetype_Error_ok"
android:layout_width = "fill_parent"
android:layout_height = "50dp"
android:text = "@string/txt_ok"
android:background = "@null"
/>
</ LinearLayout >
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3、调用此dialog
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//此处直接new一个Dialog对象出来,在实例化的时候传入主题
dialog = new Dialog(Sel_NoteTypeActivity. this , R.style.addNoteType_error_Dialog);
//设置它的ContentView
dialog.setContentView(R.layout.dialog_addnotetype_error);
Button btn_add_note_addnotetype_Error_ok = (Button)dialog.findViewById(R.id.btn_add_note_addnotetype_Error_ok);
btn_add_note_addnotetype_Error_ok.setOnClickListener( new addnoteTypeErroClickListener());
dialog.show();
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按钮点击事件:
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class addnoteTypeErroClickListener implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
dialog.cancel();
}
}
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有时候,我们会想设置dialog的宽或高,这个还是比较简单的,直接在dialog.show()下面添加如下代码:
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WindowManager.LayoutParams Layoutparams = dialog.getWindow().getAttributes();
Layoutparams.width = ( int )(mScreenWidth * 9 / 10 ); //设置宽度
dialog.getWindow().setAttributes(Layoutparams);
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希望本文所述对大家Android程序设计有所帮助。