android 之 FragmentLayout的多布局实现

来源：互联网发布：淘宝怎么修改价钱编辑：程序博客网时间：2024/05/16 06:48

1.首先创建一个activity_mainxml文件

Java code
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    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:id="@+id/main_root"
    tools:context=".activity.MainActivity"
    >
 
    <FrameLayout
        android:background="@color/titlebar_background"
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/main_bottom_tab">
    </FrameLayout>
 
    <LinearLayout
        android:layout_gravity="bottom"
        android:gravity="center"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <Button
            android:id="@+id/bt_home"
            android:text="home"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <Button
            android:text="play"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <Button
            android:id="@+id/bt_me"
            android:text="me"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
 
</FrameLayout>

2.创建2个FrameLayout.xml

layout_fragment_home.xml 如下：

Java code
?
1
2
3
4
5
6
7
8
9
10
11
12
13
<?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">
 
    <TextView
        android:textSize="130sp"
        android:gravity="center"
        android:text="home"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
 
</LinearLayout>

layout_fragment_me.xml 如下：

Java code
?
1
2
3
4
5
6
7
8
9
10
11
12
13
<?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">
 
    <TextView
        android:textSize="130sp"
        android:gravity="center"
        android:text="me"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
 
</LinearLayout>

再定义FragmentHome：

Java code
?
1
2
3
4
5
6
7
public class FragmentHome extends Fragment {
 
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.layout_fragment_home, container, false);
        return root;
    }

再定义FragmentMe：

Java code
?
1
2
3
4
5
6
7
8
9
public class FragmentMe extends Fragment {
 
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.layout_fragment_me, container, false);
        return root;
    }
 
}

最后MainActivity代码如下：

Java code
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
public class MainActivity extends FragmentActivity implements View.OnClickListener{
    private FragmentHome _home;
    private FragmentMe _Me;
 
    static final String TAG = "MainActivity";
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //
        Button home = (Button)findViewById(R.id.bt_home);
        Button me = (Button)findViewById(R.id.bt_me);
        home.setOnClickListener(this);
        me.setOnClickListener(this);
        //
        initFragmentLayout();
    }
 
    @Override
    protected void onDestroy() {
        super.onDestroy();
    }
 
    private void initFragmentLayout(){
        _home = new FragmentHome();
        _Me = new FragmentMe();
 
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        ft.add(R.id.fragment_container, _home);
        ft.add(R.id.fragment_container, _Me);
        ft.hide(_Me);
        ft.commit();
    }
 
    @Override
    public void onClick(View view){
        int id = view.getId();
        switch (id){
            case R.id.bt_home:{
                FragmentTransaction ft1 = getSupportFragmentManager().beginTransaction();
                ft1.hide(_Me);
                ft1.show(_home);
                ft1.commit();
                break;}
            case R.id.bt_me:{
                FragmentTransaction ft2 = getSupportFragmentManager().beginTransaction();
                ft2.hide(_home);
                ft2.show(_Me);
                ft2.commit();
            }
        }
    }
 
}

0 0