一、 ToastView.java

 1 import android.content.Context;

 import android.view.LayoutInflater;

 import android.view.View;

 import android.widget.ImageView;

 import android.widget.LinearLayout;

 import android.widget.TextView;

 import android.widget.Toast;

 public class ToastView extends LinearLayout{

     private static ToastView mToastView;

     private TextView toastText;

     private ImageView toastIcon;

     private Context mContext;

     private View layout;

     private Toast mToast;

     private ToastView(Context context) {

         super(context,null);

         mContext = context;

         LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

         layout = inflater.inflate(R.layout.toast, null);  

         toastIcon = (ImageView) layout.findViewById(R.id.toastIcon);

         toastText = (TextView) layout.findViewById(R.id.toastText);

     }

     public static ToastView getInstance(Context context) {

         if (mToastView != null) {

             return mToastView;

         } else {

             if (context != null) {

                 mToastView = new ToastView(context);

                 return mToastView;

             } else {

                 return null;

             }

         }

     }

     public void setIconVisiblity(int visiblity){

         toastIcon.setVisibility(visiblity);

     }

     public void showToast(String str,int gravity,int xoffset,int yoffest) {

         toastText.setText(str);

         if(mToast!=null){

             mToast.setGravity(gravity,xoffset,yoffest);

             mToast.show();

         }else{

             mToast= new Toast(mContext);

             mToast.setView(layout);

             mToast.setGravity(gravity,xoffset,yoffest);

             mToast.setDuration(Toast.LENGTH_SHORT);

             mToast.show();

         }

     }

     public void showToast(String str,int gravity,int xoffset,int yoffest,int duration) {

         toastText.setText(str);

         duration = duration<=0 ? Toast.LENGTH_SHORT : duration;

         if(mToast!=null){

             mToast.setGravity(gravity,xoffset,yoffest);

             mToast.setDuration(duration);

             mToast.show();

         }else{

             mToast= new Toast(mContext);

             mToast.setView(layout);

             mToast.setGravity(gravity,xoffset,yoffest);

             mToast.setDuration(duration);

             mToast.show();

         }

     }

 }

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

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

     android:layout_width="fill_parent"

     android:layout_height="wrap_content"

     android:gravity="center_vertical">

     <TextView

         android:id="@+id/toastText"

         android:layout_width="wrap_content"

         android:layout_height="@dimen/toastHeight"

         android:textColor="@color/title_text_color"

         android:background="@drawable/toast_bg"

         android:gravity="center"

         android:paddingLeft="@dimen/toastTextPaddingLeft"

         android:paddingRight="@dimen/toastTextPaddingRight"

         android:textSize="@dimen/toastTextSize"/>

     <ImageView

         android:id="@+id/toastIcon"

         android:layout_width="@dimen/toastIconWidth"

         android:layout_height="@dimen/toastIconWidth"

         android:layout_marginLeft="@dimen/toastIconWidth"

         android:scaleType="fitXY"

         android:layout_centerVertical="true"

         android:src="@drawable/toast_icon" />

 </RelativeLayout>

    //自定义的

    private void showToast(String str, int offset) {

        ToastView toast = ToastView.getInstance(RecommendActivity.this);

        if(offset < 0){

            toast.showToast(str, Gravity.TOP | Gravity.CENTER_HORIZONTAL,0,　　　　//默认时长的Toast

                    (int)getResources().getDimension(R.dimen.defaultToastMarginTop));

        }else{

            toast.showToast(str, Gravity.TOP | Gravity.CENTER_HORIZONTAL,0,　　　　//自定义时长的Toast

                    (int)getResources().getDimension(R.dimen.defaultToastMarginTop), offset);

        }

    }