標籤:
android自訂Toast之-彈出訊息
實現方法:
1.new 一個Toast執行個體toast。
2.自訂一個顯示的View執行個體view 。
3.把toast.setView(view),toast.setDuration(Toast.LENGTH_LONG)設定顯訊息示時間
4.避免操作有誤一直重複彈出訊息處理,定義一個Toast的全域變數避免重複執行個體化進行控制
下面是代碼
package com.android.hexiang.otptoken;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.content.Context;import android.widget.TextView;import android.widget.Toast;import com.android.hexiang.otptoken.R;/** * Created by hexiang on 2014/12/10. */public class MyToast { private static Toast mToast = null; /** * 自訂訊息框 * @param c * Created by hexiang on 2014/12/10. */ @SuppressWarnings("deprecation") private static Toast showCustomerToast(final Context c,String msg,int duration) { //擷取LayoutInflater對象,該對象可以將布局檔案轉換成與之一致的view對象 LayoutInflater inflater=LayoutInflater.from(c); //將布局檔案轉換成相應的View對象 View layout=inflater.inflate(R.layout.my_customer_toast_layout,null); layout.setBackgroundDrawable(c.getResources().getDrawable(R.drawable.back_toast_style)); //從layout中按照id尋找TextView對象 TextView textView=(TextView)layout.findViewById(R.id.txt_msg); //設定TextView的text內容 textView.setText(msg); //執行個體化一個Toast對象 Toast toast=new Toast(c.getApplicationContext()); toast.setDuration(duration); toast.setGravity(Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 160); toast.setView(layout); return toast; } /** * 長訊息框 指的的是時間長短 * Created by hexiang on 2014/12/10. * @param c 上下文 * @param msg 訊息內容 */ @SuppressWarnings("deprecation") public static void showCustomerToastLong(final Context c,String msg) { //避免重複彈出訊息 if (mToast == null) { mToast =showCustomerToast(c,msg,Toast.LENGTH_LONG); } else { TextView txt_msg=(TextView) mToast.getView().findViewById(R.id.txt_msg); txt_msg.setText(msg); mToast.setDuration(Toast.LENGTH_LONG); } mToast.show(); } /** * 短訊息框 指的的是時間長短 mToast.setDuration(Toast.LENGTH_SHORT); * @param c 上下文 * @param msg 訊息內容 * Created by hexiang on 2014/12/10. */ @SuppressWarnings("deprecation") public static void showCustomerToastShot(final Context c,String msg) { //避免重複彈出訊息 if (mToast == null) { mToast =showCustomerToast(c,msg,Toast.LENGTH_SHORT); } else { TextView txt_msg=(TextView) mToast.getView().findViewById(R.id.txt_msg); txt_msg.setText(msg); mToast.setDuration(Toast.LENGTH_SHORT); } mToast.show(); }}
下面是XMl檔案
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:id="@+id/toast_layout_root" 6 android:orientation="vertical" > 7 8 <TextView 9 android:layout_margin="6dp" 10 android:layout_gravity="center_vertical|center_horizontal"11 android:id="@+id/txt_msg"12 android:layout_width="match_parent"13 android:textColor="@color/white_light"14 android:textSize="14sp"15 android:text="this is a test toast"16 android:layout_height="wrap_content"17 />18 </LinearLayout>
下面是自訂漸層背景
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" > <gradient android:angle="315" android:centerX="0.5" android:centerY="0.5" android:centerColor="#fcdede" android:endColor="#e5edbe" android:startColor="#d2b2b2" /> <corners android:radius="3dp" /></shape>
溫習下android:shape的使用
gradient:漸層
android:startColor和android:endColor分別為起始和結束顏色,android:centerColor中間部分顏色
ndroid:angle是漸層角度,必須為45的整數倍。
最後是調用
1 MyToast.showCustomerToastLong(this,"測試訊息框");
大功告成了,本文謝絕轉載,自重 。程式猿不容易...
Created by hexiang on 2014/12/10. 清分依然
android自訂Toast之-彈出訊息