MainActivity
public class MainActivity extends AppCompatActivity implements View.OnClickListener{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = (Button) findViewById(R.id.button); button.setOnClickListener(this); replaceFragment(new RightFragment());//用replaceFragment()加载碎片 } @Override public void onClick(View view) { switch (view.getId()){ case R.id.button: replaceFragment(new RightFragment2()); break; default: break; } } private void replaceFragment(Fragment fragment) {//加载碎片 FragmentManager fragmentManager = getSupportFragmentManager();// FragmentTransaction transaction = fragmentManager.beginTransaction();//开启一个事务 transaction.replace(R.id.right_layout,fragment);//向容器添加碎片 transaction.addToBackStack(null);//将事务加入返回栈 transaction.commit();//提交事务 } }
LeftFragment
public class LeftFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savefInstanceState){ View view = inflater.inflate(R.layout.left_fragment,container,false); return view; } }
RightFragment
public class RightFragment2 extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savefInstanceState){ View view = inflater.inflate(R.layout.right_fragment_2,container,false); return view; } }
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent"> <fragment android:id="@+id/left_fragment" android:name="com.ldxiaofeng.android.fragmenttest.LeftFragment" android:layout_width="match_parent" android:layout_height="match_parent" /> <!--fragment android:id="@+id/right_fragment" android:name="com.ldxiaofeng.android.fragmenttest.RightFragment" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1"/--> <!--FrameLayout android:id="@+id/right_layout" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1"> </FrameLayout--> </LinearLayout>
left_fragment.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:text="Button"/> </LinearLayout>
right_fragment.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#00ff00"> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:text="这是右碎片" android:textSize="26sp"/> </LinearLayout>