Toast的各类用法大全(有Demo)

来源：互联网发布：python macd 计算编辑：程序博客网时间：2024/04/27 21:06

在安卓用户交互开发中Toast深受广大开发者喜爱,大多通过makeText方法返回对象显示,却没有深入研究这个对象，其实他还有很多强大功能

1.正常显示

            //注意: 使用的时候新手容易将.show()漏掉, 不使用该方法Toast是不会显示的            Toast.makeText(getApplicationContext(), btnName[0], Toast.LENGTH_SHORT).show();

2.自定位置显示

//使用.setGravity()这个方法可以设置Toast的位置和偏移量 Toast toast = Toast.makeText(getApplicationContext(), btnName[1], Toast.LENGTH_LONG);toast.setGravity(Gravity.CENTER, 0, 0);toast.show();

3.带图片显示

//获取toas的tView,利用addView()添加图片显示Toast toast = Toast.makeText(getApplicationContext(), btnName[2], Toast.LENGTH_LONG);toast.setGravity(Gravity.CENTER, 50, 0);LinearLayout layout = (LinearLayout) toast.getView();ImageView image = new ImageView(getApplicationContext());image.setImageResource(R.drawable.ic_launcher);layout.addView(image, 0);toast.show();

4.自定View显示

LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);    View view = inflater.inflate(R.layout.view_toast, null, false);Toast toast = new Toast(getApplicationContext());toast.setGravity(Gravity.CENTER, 0, 0);toast.setDuration(Toast.LENGTH_SHORT);toast.setView(view);toast.show();

5.长时间显示

{//直接自定义AlertDialog显示即可LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);    View view = inflater.inflate(R.layout.view_toast, null, false);builder = new AlertDialog.Builder(this);builder.setView(view);dialog = builder.create();dialog.show();}

其实这个已经不属于Toast这个对象了,但是我们却可以通过他实现我们想要的

6. 定时显示

AlertDialog.Builder builder;AlertDialog dialog;/**** 长时间显示  ****/protected void startToast5(){//直接自定义AlertDialog显示即可LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);    View view = inflater.inflate(R.layout.view_toast, null, false);builder = new AlertDialog.Builder(this);builder.setView(view);dialog = builder.create();dialog.show();}//定时显示protected void startToast6(){//通过Timer指定时间销毁弹出窗口即可实现long time = 1000; // 此时间以毫秒记startToast5();Timer timer = new Timer();timer.schedule(new TimerTask() {@Overridepublic void run() {//到指定时间Kill掉AlertDialog即可dialog.dismiss();}}, time);}

我就不上图了,不明白的童鞋去下载Demo吧, 地址: download.csdn.net/detail/u010058586/7898195

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