ScrollView 嵌套WebView 的問題優化

一.布局樣式

<?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"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@color/graywhite"
    android:orientation="vertical">
    <LinearLayout
        android:id="@+id/ll_pb"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:gravity="center"
        android:orientation="horizontal"
        android:visibility="gone" >
        <ProgressBar
            android:layout_width="20dp"
            android:layout_height="20dp" />
    </LinearLayout>

    <RelativeLayout
        android:id="@+id/jg_rl_parent"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="visible">
        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_above="@+id/position3">
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">
                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="vertical" >

                    <RelativeLayout
                        android:layout_width="match_parent"
                        android:layout_height="250dp"
                        android:background="@color/black" >
                        <com.facebook.drawee.view.SimpleDraweeView
                            android:id="@+id/everyday_background"
                            android:layout_width="match_parent"
                            android:layout_height="match_parent"
                            app:actualImageScaleType="centerCrop" />
                        <LinearLayout
                            android:id="@+id/ll_knowledge_head_bottom"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:layout_alignParentBottom="true"
                            android:layout_alignParentRight="true"
                            android:background="@drawable/reading_detail"
                            android:gravity="center"
                            android:orientation="horizontal" >

                            <TextView
                                android:id="@+id/everyday_title"
                                android:layout_width="0dp"
                                android:layout_height="wrap_content"
                                android:layout_marginBottom="10dp"
                                android:layout_marginLeft="10dp"
                                android:layout_marginRight="10dp"
                                android:layout_marginTop="15dp"
                                android:layout_weight="1"
                                android:textColor="@color/white"
                                android:textSize="@dimen/font_14" />

                        </LinearLayout>
                        <com.ldcang.customview.MyTxVideo
                            android:id="@+id/my_tx_video"
                            android:layout_width="match_parent"
                            android:layout_height="match_parent"
                            android:visibility="gone">
                        </com.ldcang.customview.MyTxVideo>
                        <TextView
                            android:id="@+id/tv_middle_play"
                            android:layout_width="50dp"
                            android:layout_height="50dp"
                            android:background="@drawable/play_start"
                            android:layout_centerInParent="true"
                            android:visibility="gone"/>
                        <ProgressBar
                            android:id="@+id/progressBar"
                            android:layout_width="34dp"
                            android:layout_height="34dp"
                            android:layout_centerInParent="true"
                            android:visibility="gone"/>
                    </RelativeLayout>

                    <WebView
                        android:id="@+id/everyday_webview"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:scrollbars="none"/>

                </LinearLayout>
                <com.ldcang.utils.Listview
                    android:id="@+id/everyday_listview"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="@color/graywhite"
                    android:divider="@null">
                </com.ldcang.utils.Listview>
                <LinearLayout
                    android:id="@+id/ll_goods"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical"
                    android:background="@color/white">
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:padding="10dp"
                        android:gravity="center_vertical"
                        android:text="猜你喜歡"
                        android:textColor="@color/text333"
                        android:textSize="@dimen/font_14"/>
                    <View
                        android:layout_width="match_parent"
                        android:layout_height="1px"
                        android:background="@color/graywhite"/>
                    <HorizontalScrollView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:scrollbars="none">

                        <LinearLayout
                            android:id="@+id/ll_collect_image_container"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:paddingRight="10dp"
                            android:orientation="horizontal" />
                    </HorizontalScrollView>

                </LinearLayout>
            </LinearLayout>
        </ScrollView>
        <LinearLayout
            android:id="@+id/position3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/white"
            android:layout_alignParentBottom="true"
            android:orientation="vertical">

            <View
                android:layout_width="match_parent"
                android:layout_height="1px"
                android:background="@color/line" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="43dp"
                android:orientation="horizontal">

                <LinearLayout
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:orientation="horizontal">

                    <TextView
                        android:id="@+id/zm_tv_zan"
                        android:layout_width="19dp"
                        android:layout_height="19dp"
                        android:background="@drawable/liulan_list" />

                    <TextView
                        android:id="@+id/everyday_views"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginLeft="5dp"
                        android:text="0"
                        android:textColor="@color/text666"
                        android:textSize="@dimen/font_14" />
                </LinearLayout>

                <View
                    android:layout_width="1px"
                    android:layout_height="match_parent"
                    android:background="@color/line" />

                <LinearLayout
                    android:id="@+id/ll_collect"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:orientation="horizontal">

                    <ImageView
                        android:id="@+id/iv_collect"
                        android:layout_width="19dp"
                        android:layout_height="19dp"
                        android:background="@drawable/guanzhu" />

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginLeft="5dp"
                        android:text="收藏"
                        android:textColor="@color/text666"
                        android:textSize="@dimen/font_14" />
                </LinearLayout>

                <View
                    android:layout_width="1px"
                    android:layout_height="match_parent"
                    android:background="@color/line" />

                <LinearLayout
                    android:id="@+id/everyday_share"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:orientation="horizontal">

                    <TextView
                        android:id="@+id/zm_tv_share"
                        android:layout_width="17dp"
                        android:layout_height="17dp"
                        android:background="@drawable/jg_share" />

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginLeft="5dp"
                        android:text="分享"
                        android:textColor="@color/text666"
                        android:textSize="@dimen/font_14" />
                </LinearLayout>

                <View
                    android:layout_width="1px"
                    android:layout_height="match_parent"
                    android:background="@color/line" />

                <LinearLayout
                    android:id="@+id/everyday_pinglun"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:orientation="horizontal">

                    <TextView
                        android:id="@+id/textView3"
                        android:layout_width="18dp"
                        android:layout_height="18dp"
                        android:background="@drawable/comment_icon" />

                    <TextView
                        android:id="@+id/everyday_comment"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginLeft="5dp"
                        android:text="評論"
                        android:textColor="@color/text666"
                        android:textSize="@dimen/font_14" />
                </LinearLayout>

            </LinearLayout>
        </LinearLayout>

        <TextView
            android:id="@+id/everyday_back"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="10dp"
            android:background="@drawable/attention_back" />
    </RelativeLayout>
</LinearLayout>

這個我布局我手機沒問題就沒注意，以為沒有問題，后面部分手機會有很大的空白區域，滑動控件沖突了。以后遇到兩個滑動控件嵌套都會有問題，必須自定義一個滑動控件，我認為最好是自定義嵌套的內部滑動控件，感覺比較簡單。

二。自定義WebView

public class MyWebView extends WebView {
    public MyWebView(Context context) {
        super(context);
    }

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

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

    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        heightMeasureSpec = MeasureSpec.makeMeasureSpec(
                Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}

主要復寫onMeasure()方法 重新計算一下高度即可，然后在修改完的時候發現會滾動到WebView的位置
繼續修改貼上部分代碼

public class EveryDayDetailActivity extends BaseActivity implements OnClickListener {

@Override
protected void initView() {
    // TODO Auto-generated method stub
    setContentView(R.layout.everyday_detail);
    jg_rl_parent = (RelativeLayout) findViewById(R.id.jg_rl_parent);
    ll_pb = (LinearLayout) findViewById(R.id.ll_pb);
    back = (TextView) findViewById(R.id.everyday_back);//返回

    listView = (Listview) findViewById(R.id.everyday_listview);

    /** 有視頻則顯示視頻播放 */

    webView = (WebView) findViewById(R.id.everyday_webview);
    title = (TextView) findViewById(R.id.everyday_title);
    imageView = (SimpleDraweeView) findViewById(R.id.everyday_background);
    /**
     * 改為自定義控件自動滾動到了WebView,添加焦點不讓滾動到WebView
     * */
    imageView.setFocusable(true);
    imageView.requestFocus();
    imageView.setFocusableInTouchMode(true);

    ll_knowledge_head_bottom = (LinearLayout) findViewById(R.id.ll_knowledge_head_bottom);
    mMyTxVideo = (MyTxVideo) findViewById(R.id.my_tx_video);//視頻空間
    tv_middle_play = (TextView) findViewById(R.id.tv_middle_play);//播放按鈕控件
    mProgressBar = (ProgressBar) findViewById(R.id.progressBar);//加載轉圈

    popshare = getLayoutInflater().inflate(R.layout.popupwindow_share, null);//分享彈框布局

    /** 商品和拍賣 */
    ll_goods = (LinearLayout)findViewById(R.id.ll_goods);//商品和拍賣父控件
    ll_collect_image_container = (LinearLayout)findViewById(R.id.ll_collect_image_container);//商品和拍賣控件

    /** 底部 */
    views = (TextView) findViewById(R.id.everyday_views);
    share = (LinearLayout) findViewById(R.id.everyday_share);
    pinglun = (LinearLayout) findViewById(R.id.everyday_pinglun);
    everyday_comment = (TextView) findViewById(R.id.everyday_comment);
    iv_collect = (ImageView) findViewById(R.id.iv_collect);
    ll_collect = (LinearLayout) findViewById(R.id.ll_collect);
}

}
　　把焦點給上面的任何一個控件就可以了

    /**
     * 改為自定義控件自動滾動到了WebView,添加焦點不讓滾動到WebView
     * */
    imageView.setFocusable(true);
    imageView.requestFocus();
    imageView.setFocusableInTouchMode(true);