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<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@mipmap/tab_channel_pressed" android:state_selected="true" />
    <item android:drawable="@mipmap/tab_channel_normal" />
</selector>

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="@color/text_yellow" android:state_selected="true" />
    <item android:color="@color/text_gray" />
</selector>

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true">
        <shape>
            <solid android:color="#FFC4C4C4" />
        </shape>
    </item>
    <item>
        <shape>
            <solid android:color="@color/transparent" />
        </shape>
    </item>
</selector>

<RelativeLayout 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"
    tools:context=".MainActivity">

    <RelativeLayout
        android:id="@+id/ly_top_bar"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:background="@color/bg_topbar">

        <TextView
            android:id="@+id/txt_topbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerInParent="true"
            android:gravity="center"
            android:textSize="18sp"
            android:textColor="@color/text_topbar"
            android:text="Information"/>

        <View
            android:layout_width="match_parent"
            android:layout_height="2px"
            android:background="@color/div_white"
            android:layout_alignParentBottom="true"/>

    </RelativeLayout>

    <LinearLayout
        android:id="@+id/ly_tab_bar"
        android:layout_width="match_parent"
        android:layout_height="56dp"
        android:layout_alignParentBottom="true"
        android:background="@color/bg_white"
        android:orientation="horizontal">

        &lt;TextView
            android:id="@+id/txt_channel"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@drawable/tab_menu_bg"
            android:drawablePadding="3dp"
            android:drawableTop="@drawable/tab_menu_channel"
            android:gravity="center"
            android:padding="5dp"
            android:text="@string/tab_menu_alert"
            android:textColor="@drawable/tab_menu_text"
            android:text
android:textSize="16sp"/>

    </LinearLayout>

    <View
        android:id="@+id/div_tab_bar"
        android:layout_width="match_parent"
        android:layout_height="2px"
        android:background="@color/div_white"
        android:layout_above="@id/ly_tab_bar"/>


    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/ly_top_bar"
        android:layout_above="@id/div_tab_bar"
        android:id="@+id/ly_content">

    </FrameLayout>

</RelativeLayout>

android:theme="@style/Theme.AppCompat.NoActionBar"

<?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="@color/bg_white">

    <TextView
        android:id="@+id/txt_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="Hehe"
        android:textColor="@color/text_yellow"
        android:textSize="20sp"/>

</LinearLayout>

/**
 * Created by Coder-pig on 2015/8/28 0028.
 */
public class MyFragment extends Fragment {

    private String content;
    public MyFragment(String content) {
        this.content = content;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fg_content,container,false);
        TextView txt_content = (TextView) view.findViewById(R.id.txt_content);
        txt_content.setText(content);
        return view;
    }
}

/**
 * Created by Coder-pig on 2015/8/28 0028.
 */
public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    //UI Object
    private TextView txt_topbar;
    private TextView txt_channel;
    private TextView txt_message;
    private TextView txt_better;
    private TextView txt_setting;
    private FrameLayout ly_content;

    //Fragment Object
    private MyFragment
```java
txt_channel.setSelected(true);
if (fg1 == null) {
    fg1 = new MyFragment("The first Fragment");
    fTransaction.add(R.id.ly_content, fg1);
} else {
    fTransaction.show(fg1);
}
break;
case R.id.txt_message:
setSelected();
txt_message.setSelected(true);
if (fg2 == null) {
    fg2 = new MyFragment("The second Fragment");
    fTransaction.add(R.id.ly_content, fg2);
} else {
    fTransaction.show(fg2);
}
break;
case R.id.txt_better:
setSelected();
txt_better.setSelected(true);
if (fg3 == null) {
    fg3 = new MyFragment("The third Fragment");
    fTransaction.add(R.id.ly_content, fg3);
} else {
    fTransaction.show(fg3);
}
break;
case R.id.txt_setting:
setSelected();
txt_setting.setSelected(true);
if (fg4 == null) {
    fg4 = new MyFragment("The fourth Fragment");
    fTransaction.add(R.id.ly_content, fg4);
} else {
    fTransaction.show(fg4);
}
break;
}
fTransaction.commit();
}