【Android】FragmentTabHostの実装方法&TabChangeListenerの登録方法

FragmentTabHostの実装方法とTabChangeListenerの実装方法のメモ。

MainActivity.java

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;
import android.util.Log;
import android.widget.TabHost;

public class MainActivity extends FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        FragmentTabHost tabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
        tabHost.setup(this, getSupportFragmentManager(), R.id.container);

        TabHost.TabSpec tabSpec1, tabSpec2;

        tabSpec1 = tabHost.newTabSpec("tab1");
        tabSpec1.setIndicator("tab1");
        tabHost.addTab(tabSpec1, Fragment1.class, null);

        tabSpec2 = tabHost.newTabSpec("tab2");
        tabSpec2.setIndicator("tab2");
        tabHost.addTab(tabSpec2, Fragment2.class, null);

        tabHost.setOnTabChangedListener(tabChangedListener);
    }

    /* ここでタブ切り替え時の処理を実装 */
    private TabHost.OnTabChangeListener tabChangedListener = new TabHost.OnTabChangeListener() {
        public void onTabChanged(String tabid) {
            Log.d("TAG", tabid);
        }
    };
}

activity_main.xml

<android.support.v4.app.FragmentTabHost
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_weight="0" />

        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_weight="0" />

        <FrameLayout
            android:id="@+id/container"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1" />

    </LinearLayout>

</android.support.v4.app.FragmentTabHost>