行選択可能(Checkable)な ListView に設定してるカスタムビュー内の 背景色/テキスト文字色 を selector だけで変更する

CheckableLayout.java

package daichan4649.test;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Checkable;
import android.widget.LinearLayout;

public class CheckableLayout extends LinearLayout implements Checkable {

    private static final int[] CHECKED_STATE_SET = { android.R.attr.state_checked };

    public CheckableLayout(Context context) {
        super(context, null);
    }

    public CheckableLayout(Context context, AttributeSet attrs) {
        super(context, attrs, 0);
    }

    public CheckableLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    private boolean checked;

    @Override
    public boolean isChecked() {
        return checked;
    }

    @Override
    public void setChecked(boolean checked) {
        if (this.checked != checked) {
            this.checked = checked;
            refreshDrawableState();

            for (int i = 0; i < getChildCount(); i++) {
                View child = getChildAt(i);
                if (child instanceof Checkable) {
                    ((Checkable) child).setChecked(checked);
                }
            }
        }
    }

    @Override
    public void toggle() {
        setChecked(!checked);
    }

    @Override
    protected int[] onCreateDrawableState(int extraSpace) {
        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
        if (isChecked()) {
            mergeDrawableStates(drawableState, CHECKED_STATE_SET);
        }
        return drawableState;
    }
}

CheckableTextView.java

package daichan4649.test;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.Checkable;
import android.widget.TextView;

public class CheckableTextView extends TextView implements Checkable {

    private static final int[] CHECKED_STATE_SET = { android.R.attr.state_checked };

    public CheckableTextView(Context context) {
        super(context, null);
    }

    public CheckableTextView(Context context, AttributeSet attrs) {
        super(context, attrs, 0);
    }

    public CheckableTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    private boolean checked;

    @Override
    public boolean isChecked() {
        return checked;
    }

    @Override
    public void setChecked(boolean checked) {
        if (this.checked != checked) {
            this.checked = checked;
            refreshDrawableState();
        }
    }

    @Override
    public void toggle() {
        setChecked(!checked);
    }

    @Override
    protected int[] onCreateDrawableState(int extraSpace) {
        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
        if (isChecked()) {
            mergeDrawableStates(drawableState, CHECKED_STATE_SET);
        }
        return drawableState;
    }
}

list_column.xml

<?xml version="1.0" encoding="utf-8"?>
<daichan4649.test.CheckableLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/selector_listgroup"
    android:orientation="vertical">

    <daichan4649.test.CheckableTextView
        android:id="@+id/text1"
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1"
        android:clickable="false"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:gravity="center_vertical"
        android:textColor="@color/selector_listgroup_text" />

</daichan4649.test.CheckableLayout>

list_item_bg.xml

<?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="?android:attr/activatedBackgroundIndicator"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

selector_listgroup.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/shape_blue" android:state_checked="true"/>
    <item android:drawable="@drawable/shape_normal"/>
</selector>

selector_listgroup_text.xml

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

TestListFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    ListView listView = (ListView) view.findViewById(R.id.list);
    ・・・
    listView.setAdapter(adapter);
    listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
    ・・・
}

・ListView 内のレイアウトが 「android.R.layout.simple_list_item_activated_1」
・ListView#setChoiceMode(ListView.CHOICE_MODE_SINGLE)
これのカスタムビュー版。

・list_item_bg.xml
背景色をカスタムする必要がない(標準の色selectorでいい)場合は、「android:background="?android:attr/activatedBackgroundIndicator"」 を指定するのみでOK。独自selector不要。