Android Toast通知用法实例详解
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2024-03-05 17:36:25
本文实例讲述了android toast通知用法。分享给大家供大家参考,具体如下:
toast在手机屏幕上向用户显示一条信息,一段时间后信息会自动消失。
1.默认用法...
本文实例讲述了android toast通知用法。分享给大家供大家参考,具体如下:
toast在手机屏幕上向用户显示一条信息,一段时间后信息会自动消失。
1.默认用法
复制代码 代码如下:
toast.maketext(getapplicationcontext(), "默认toast样式",toast.length_short).show();
2.fragment中的用法
复制代码 代码如下:
toast.maketext(getactivity(),"网络连接错误,请检察网络设置", toast.length_long).show();
3.自定义显示位置效果
toast = toast.maketext(getapplicationcontext(), "自定义位置toast", toast.length_long); toast.setgravity(gravity.center, 0, 0); toast.show();
4.带图片效果
toast = toast.maketext(getapplicationcontext(), "带图片的toast", toast.length_long); toast.setgravity(gravity.center, 0, 0); linearlayout toastview = (linearlayout) toast.getview(); imageview imagecodeproject = new imageview(getapplicationcontext()); imagecodeproject.setimageresource(r.drawable.icon); toastview.addview(imagecodeproject, 0); toast.show();
5.完全自定义效果
layoutinflater inflater = getlayoutinflater(); view layout = inflater.inflate(r.layout.custom,(viewgroup) findviewbyid(r.id.lltoast)); imageview image = (imageview) layout.findviewbyid(r.id.tvimagetoast); image.setimageresource(r.drawable.icon); textview title = (textview) layout.findviewbyid(r.id.tvtitletoast); title.settext("attention"); textview text = (textview) layout.findviewbyid(r.id.tvtexttoast); text.settext("完全自定义toast"); toast = new toast(getapplicationcontext()); toast.setgravity(gravity.right | gravity.top, 12, 40); toast.setduration(toast.length_long); toast.setview(layout); toast.show();
6.其他线程
main.java代码:
package com.wjq.toast; import android.app.activity; import android.os.bundle; import android.os.handler; import android.view.gravity; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.view.view.onclicklistener; import android.widget.imageview; import android.widget.linearlayout; import android.widget.textview; import android.widget.toast; public class main extends activity implements onclicklistener { handler handler = new handler(); @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); findviewbyid(r.id.btnsimpletoast).setonclicklistener(this); findviewbyid(r.id.btnsimpletoastwithcustomposition).setonclicklistener(this); findviewbyid(r.id.btnsimpletoastwithimage).setonclicklistener(this); findviewbyid(r.id.btncustomtoast).setonclicklistener(this); findviewbyid(r.id.btnruntoastfromotherthread).setonclicklistener(this); } public void showtoast() { handler.post(new runnable() { @override public void run() { toast.maketext(getapplicationcontext(), "我来自其他线程!",toast.length_short).show(); } }); } @override public void onclick(view v) { toast toast = null; switch (v.getid()) { case r.id.btnsimpletoast: toast.maketext(getapplicationcontext(), "默认toast样式",toast.length_short).show(); break; case r.id.btnsimpletoastwithcustomposition: toast = toast.maketext(getapplicationcontext(), "自定义位置toast",toast.length_long); toast.setgravity(gravity.center, 0, 0); toast.show(); break; case r.id.btnsimpletoastwithimage: toast = toast.maketext(getapplicationcontext(), "带图片的toast",toast.length_long); toast.setgravity(gravity.center, 0, 0); linearlayout toastview = (linearlayout) toast.getview(); imageview imagecodeproject = new imageview(getapplicationcontext()); imagecodeproject.setimageresource(r.drawable.icon); toastview.addview(imagecodeproject, 0); toast.show(); break; case r.id.btncustomtoast: layoutinflater inflater = getlayoutinflater(); view layout = inflater.inflate(r.layout.custom,(viewgroup) findviewbyid(r.id.lltoast)); imageview image = (imageview) layout.findviewbyid(r.id.tvimagetoast); image.setimageresource(r.drawable.icon); textview title = (textview) layout.findviewbyid(r.id.tvtitletoast); title.settext("attention"); textview text = (textview) layout.findviewbyid(r.id.tvtexttoast); text.settext("完全自定义toast"); toast = new toast(getapplicationcontext()); toast.setgravity(gravity.right | gravity.top, 12, 40); toast.setduration(toast.length_long); toast.setview(layout); toast.show(); break; case r.id.btnruntoastfromotherthread: new thread(new runnable() { public void run() { showtoast(); } }).start(); break; } } }
main.xml代码:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center" android:orientation="vertical" android:padding="5dip" > <button android:id="@+id/btnsimpletoast" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="默认" > </button> <button android:id="@+id/btnsimpletoastwithcustomposition" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="自定义显示位置" > </button> <button android:id="@+id/btnsimpletoastwithimage" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="带图片" > </button> <button android:id="@+id/btncustomtoast" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="完全自定义" > </button> <button android:id="@+id/btnruntoastfromotherthread" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="其他线程" > </button> </linearlayout>
custom.xml:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/lltoast" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#ffffffff" android:orientation="vertical" > <textview android:id="@+id/tvtitletoast" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="1dip" android:background="#bb000000" android:gravity="center" android:textcolor="#ffffffff" /> <linearlayout android:id="@+id/lltoastcontent" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginbottom="1dip" android:layout_marginleft="1dip" android:layout_marginright="1dip" android:background="#44000000" android:orientation="vertical" android:padding="15dip" > <imageview android:id="@+id/tvimagetoast" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" /> <textview android:id="@+id/tvtexttoast" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:paddingleft="10dip" android:paddingright="10dip" android:textcolor="#ff000000" /> </linearlayout> </linearlayout>
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