Android Toast通知用法实例详解

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：

custom.xml：

更多关于Android相关内容感兴趣的读者可查看本站专题：《Android编程之activity操作技巧总结》、《Android资源操作技巧汇总》、《Android文件操作技巧汇总》、《Android操作SQLite数据库技巧总结》、《Android操作json格式数据技巧总结》、《Android数据库操作技巧总结》、《Android编程开发之SD卡操作方法汇总》、《Android开发入门与进阶教程》、《Android视图View技巧总结》及《Android控件用法总结》

希望本文所述对大家Android程序设计有所帮助。