Toast是Android中用来显示显示信息的一种机制，和Dialog不一样的是，Toast是没有焦点的，而且Toast显示的时间有限，过一定的时间就会自动消失。下面用一个实例来看看如何使用Toast。 

1.默认效果

代码

Toast.makeText(getApplicationContext(), "默认Toast样式",      Toast.LENGTH_SHORT).show();

2.自定义显示位置效果

代码

toast = Toast.makeText(getApplicationContext(),      "自定义位置Toast", Toast.LENGTH_LONG);    toast.setGravity(Gravity.CENTER, 0, 0);    toast.show();

3.带图片效果

 

代码

 

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();

4.完全自定义效果

代码

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();

5.其他线程

代码

new Thread(new Runnable() {     public void run() {      showToast();     }    }).start();

 

custom.xml