切记:fragment一定要放在framlayout中,不然不会被替换完全(就是切换之后原来的fagment可能还会存在)
main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#ffffff" android:orientation="vertical"> <FrameLayout android:id="@+id/content" android:layout_width="match_parent" android:layout_height="match_parent" > <fragment android:name="com.liu25.asmallpark.Fragment.Fragment_1" android:layout_width="match_parent" android:layout_height="match_parent" tools:layout="@layout/fragment_1" /> </FrameLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <!--四个Button>
<LinearLayout/>
<LinearLayout/> fragment_1.xml(灰色背景)
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#f3f3f3" android:orientation="vertical"></LinearLayout>
fragment_2.xml(黑色背景)
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#000000" android:orientation="vertical"></LinearLayout>
main.java在Button点击事件里面:
FragmentManager fragmentManager = getFragmentManager();//FragmentTransaction transaction = fragmentManager.beginTransaction();transaction.replace(R.id.content, fragment_1);transaction.commit();
时间: 2024-10-10 08:44:56