转载请注明出处，原文网址：  作者：张燕广

实现的Toast工具类ToastUtil封装了普通文本消息提示和带图片的消息提示，实际开发中可根据自己的需要完善ToastUtil类，比如完善Toast消息位置相关设置等。

ToastUtil类代码如下：

 

package com.zyg.demo.toast;

import android.content.Context;
import android.view.Gravity;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;

public class ToastUtil {
    private static Toast toast = null;
    public static int LENGTH_LONG = Toast.LENGTH_LONG;
    private static int LENGTH_SHORT = Toast.LENGTH_SHORT;

    /**
     * 普通文本消息提示
     * @param context
     * @param text
     * @param duration
     */
    public static void TextToast(Context context,CharSequence text,int duration){
        //创建一个Toast提示消息
        toast = Toast.makeText(context, text, duration);
        //设置Toast提示消息在屏幕上的位置
        toast.setGravity(Gravity.CENTER, 0, 0);
        //显示消息
        toast.show();
    }

    /**
     * 带图片消息提示
     * @param context
     * @param ImageResourceId
     * @param text
     * @param duration
     */
    public static void ImageToast(Context context,int ImageResourceId,CharSequence text,int duration){
        //创建一个Toast提示消息
        toast = Toast.makeText(context, text, Toast.LENGTH_LONG);
        //设置Toast提示消息在屏幕上的位置
        toast.setGravity(Gravity.CENTER, 0, 0);
        //获取Toast提示消息里原有的View
        View toastView = toast.getView();
        //创建一个ImageView
        ImageView img = new ImageView(context);
        img.setImageResource(ImageResourceId);
        //创建一个LineLayout容器
        LinearLayout ll = new LinearLayout(context);
        //向LinearLayout中添加ImageView和Toast原有的View
        ll.addView(img);
        ll.addView(toastView);
        //将LineLayout容器设置为toast的View
        toast.setView(ll);
        //显示消息
        toast.show();
    }
}

ToastUtil工具类应用示例代码如下：

 

 

package com.zyg.demo.toast;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

import com.zyg.demo.toast.util.ToastUtil;

public class ToastActivity extends Activity implements OnClickListener{
    private Button btnTxtToast = null;
    private Button btnImgToast = null;
    private Toast toast = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        initUI();
    }

    private void initUI(){
        btnTxtToast = (Button)findViewById(R.id.txttoast);
        btnTxtToast.setOnClickListener(this);

        btnImgToast = (Button)findViewById(R.id.imgtoast);
        btnImgToast.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        if(v==btnTxtToast){
            String text = "文本消息提示";
            int duration = ToastUtil.LENGTH_LONG;
            ToastUtil.TextToast(this, text, ToastUtil.LENGTH_LONG);
        }else if(v==btnImgToast){
            String text = "正在搜索";
            int ImageResourceId = R.drawable.search;
            int duration = ToastUtil.LENGTH_LONG;
            ToastUtil.ImageToast(this, ImageResourceId, text, duration);
        }
    }
}

运行效果如下：