如何在敬酒消息前删除软件包名称(Javascript)?
包裹名称:
const sum = function(x,y,z){
return Number(x) + Number(y)+Number(z);
};
console.log(sum('',5,7));
activity_main.xml
com.company.javascript
MainActivity.java
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/btn_hello"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
答案 0 :(得分:0)
感谢@CommonsWare,此问题是由某些设备制造商修改了Toast
的行为引起的,因此,如果有必要这样做,我们必须覆盖Toast.makeText
然后显示它
public class ToastUtils {
public static void showToast(Context context, String message, int duration) {
Toast toast = Toast.makeText(context, message, duration);
ViewGroup group = (ViewGroup) toast.getView();
TextView tvMessage = (TextView) group.getChildAt(0);
tvMessage.setText(message);
tvMessage.setGravity(Gravity.CENTER);
toast.show();
}
}