java - XML 图片更改

Question

我想在按下按钮时更改我的 xml 代码。这可能吗？

所以当我按下按钮时我想要那个

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="@dimen/nav_header_height"
    android:background="@drawable/steg"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    android:gravity="bottom">

更改为 android:background="@drawable/test"

感谢您的帮助

JK

<小时/>

我尝试了你的解决方案，但没有成功:(

import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import android.widget.ImageButton;
import android.widget.LinearLayout;

public class einstellungen extends Fragment {

    ImageButton btn;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.einstellungen, container, false);


        btn = (ImageButton)rootView.findViewById(R.id.boote);

        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ((LinearLayout)findViewById(R.id.headerLayout)).setBackgroundDrawable(getResources().getDrawable(R.drawable.kapelle));
            }
        });

        return rootView;
    }


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
}

这是我的课，有人可以帮助我吗？

Answer 1

试试这个`

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/headerLayout"
    android:layout_width="match_parent"
    android:layout_height="@dimen/nav_header_height"
    android:background="@drawable/steg"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    android:gravity="bottom">

`在你的类(class)

((LinearLayout)findViewById(R.id.headerLayout)).setBackgroundDrawable(getResources().getDrawable(R.drawable.test));