toast即时更新文本
### toast.js
```javascript
importClass(android.widget.Toast);
let toast = (function () {
let toast = null;
function showText(msg) {
var msg = msg.toString();
if (!toast) {
toast = Toast.makeText(context, msg, Toast.LENGTH_SHORT);
} else {
toast.setText(msg);
}
toast.show();
}
return showText;
})();
module.exports = toast;
```
### main.js
```javascript
let toast = require("./toast");
for (var i = 0; i < 10; i++) {
toast(i);
}
```
**## 声明**
部分内容来自网络
本教程仅用于学习, 禁止用于其他用途