java - 如何在toast消息中隐藏包名称？

Question

如何去掉toast消息前的包名(Javascript)？

包名称:

com.company.javascript

activity_main.xml

<?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>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        findViewById(R.id.btn_hello).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "Hello World!", Toast.LENGTH_LONG).show();
            }
        });
    }
}

Answer 1

感谢@CommonsWare，这个问题是由某些设备制造商引起的，修改了Toast的行为，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();
    }
}