2013-04-05 36 views
1

我正在使用this lib進行水平滑動。檢查下面的代碼網頁瀏覽內容在android中閃爍?

滑動功能工作正常,但當我要直接滑動,然後不顯示內容的網頁視圖。 顯示出一些下面的圖更多細節: -

enter image description here

上述知情同意後當過我是刷卡它的作品不錯,但,當我們想直接進入下一張幻燈片,然後對着消失內容如下問題: -

enter image description here

,然後將其顯示下列

enter image description here

代碼

PageControl mPageControl = (PageControl) findViewById(R.id.page_control); 
    mSwipeView = (SwipeView) findViewById(R.id.swipe_view); 

    mSwipeView.setPageControl(mPageControl); 

    for (int i = 0; i < 10; i++) { 
     mSwipeView.addView(new FrameLayout(this)); 
    } 

    for (int i = 0; i < 10; i++) { 

     ((FrameLayout) mSwipeView.getChildContainer().getChildAt(i)) 
       .addView(setupView()); 
     count++; 
    } 

setupView函數()

public View setupView() { 

    LayoutInflater layoutInflator = getLayoutInflater(); 
    LinearLayout childlayout = (LinearLayout) layoutInflator.inflate(
      R.layout.webview, Switcher, false); 

      // adding all the things in which define in below XML 

    return childlayout; 

} 

XML

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/rootView" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:background="@color/white" 
android:orientation="vertical" > 

<ScrollView 
    android:id="@+id/scroll" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" > 

    <LinearLayout 
     android:id="@+id/main_layout" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:background="@color/white" 
     android:orientation="vertical" > 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:orientation="horizontal" > 

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

       <LinearLayout 
        android:id="@+id/layClick" 
        android:layout_width="43dp" 
        android:layout_height="64dp" 
        android:background="@drawable/queslay" 
        android:gravity="left" 
        android:orientation="vertical" > 

        // some stuff 

      </LinearLayout> 

      <LinearLayout 
       android:id="@+id/main_question" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" 
       android:orientation="vertical" > 

       <WebView 
        android:id="@+id/ques" 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:background="#ffffff" /> 
      </LinearLayout> 
     </LinearLayout> 

     <LinearLayout 
      android:id="@+id/option_main" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:gravity="center" 
      android:orientation="vertical" > 
     </LinearLayout> 
    </LinearLayout> 
</ScrollView> 

<LinearLayout 
    android:id="@+id/solution_confirm" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_gravity="center_horizontal" 
    android:background="@null" 
    android:gravity="center" 
    android:orientation="horizontal" > 

    // some stuff 
</LinearLayout> 

也膨脹上「@ + ID/option_main」 XML下面的XML:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:orientation="vertical" > 

<!-- <FL><LL><FL></FL><BTN/></LL></FL> --> 

<RelativeLayout 
    android:id="@+id/option_relative_a" 
    android:layout_width="fill_parent" 
    android:layout_margin="10dp" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal" > 

    <LinearLayout 
     android:id="@+id/option_a" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <LinearLayout 
      android:layout_width="40dp" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" > 

      <Button 
       android:id="@+id/btn_a" 
       android:layout_width="47dp" 
       android:layout_height="19dp" 
       android:layout_gravity="center_horizontal" 
       android:background="@drawable/opgrey" 
       android:gravity="center" 
       android:text="@string/a" 
       android:textColor="#ffffff" 
       android:textSize="12sp" /> 

       <ImageView 
       android:id="@+id/ch_a" 
       android:layout_width="21dp" 
       android:layout_height="18dp" 
       android:layout_marginTop="5dp" 
       android:layout_gravity="center_horizontal" 
       android:src="@drawable/cross" 
       android:gravity="center" 
       android:textSize="12sp" /> 
     </LinearLayout> 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="center_vertical" 
      android:layout_marginBottom="2dp" 
      android:layout_marginRight="2dp" 
      android:layout_marginTop="2dp" 
      android:orientation="vertical" > 

      <WebView 
       android:id="@+id/ques_option_a" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" /> 
     </LinearLayout> 
    </LinearLayout> 

    <ImageView 
     android:id="@+id/option_image_a" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
      android:layout_alignBottom="@+id/option_a" 
     android:background="@null" /> 

</RelativeLayout> 


<RelativeLayout 
    android:id="@+id/option_relative_b" 
    android:layout_width="fill_parent" 
    android:layout_margin="10dp" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal" > 

    <LinearLayout 
     android:id="@+id/option_b" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <LinearLayout 
      android:layout_width="40dp" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" > 

      <Button 
       android:id="@+id/btn_b" 
       android:layout_width="47dp" 
       android:layout_height="19dp" 
       android:layout_gravity="center_horizontal" 
       android:background="@drawable/opgrey" 
       android:gravity="center" 
       android:text="@string/b" 
       android:textColor="#ffffff" 
       android:textSize="12sp" /> 


      <ImageView 
       android:id="@+id/ch_b" 
       android:layout_width="21dp" 
       android:layout_height="18dp" 
       android:layout_marginTop="5dp" 
       android:layout_gravity="center_horizontal" 
       android:src="@drawable/cross" 
       android:gravity="center" 
       android:textSize="12sp" /> 
     </LinearLayout> 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="center_vertical" 
      android:layout_marginBottom="2dp" 
      android:layout_marginRight="2dp" 
      android:layout_marginTop="2dp" 
      android:orientation="vertical" > 

      <WebView 
       android:id="@+id/ques_option_b" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" /> 
     </LinearLayout> 
    </LinearLayout> 

    <ImageView 
     android:id="@+id/option_image_b" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
      android:layout_alignBottom="@+id/option_b" 
     android:background="@null" /> 

</RelativeLayout> 

<RelativeLayout 
    android:id="@+id/option_relative_c" 
    android:layout_width="fill_parent" 
    android:layout_margin="10dp" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal" > 

    <LinearLayout 
     android:id="@+id/option_c" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <LinearLayout 
      android:layout_width="40dp" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" > 

      <Button 
       android:id="@+id/btn_c" 
       android:layout_width="47dp" 
       android:layout_height="19dp" 
       android:layout_gravity="center_horizontal" 
       android:background="@drawable/opgrey" 
       android:gravity="center" 
       android:text="@string/c" 
       android:textColor="#ffffff" 
       android:textSize="12sp" /> 


      <ImageView 
       android:id="@+id/ch_c" 
       android:layout_width="21dp" 
       android:layout_marginTop="5dp" 
       android:layout_height="18dp" 
       android:layout_gravity="center_horizontal" 
       android:src="@drawable/cross" 
       android:gravity="center" 
       android:textSize="12sp" /> 

     </LinearLayout> 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="center_vertical" 
      android:layout_marginBottom="2dp" 
      android:layout_marginRight="2dp" 
      android:layout_marginTop="2dp" 
      android:orientation="vertical" > 

      <WebView 
       android:id="@+id/ques_option_c" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" /> 
     </LinearLayout> 
    </LinearLayout> 

    <ImageView 
     android:id="@+id/option_image_c" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
      android:layout_alignBottom="@+id/option_c" 
     android:background="@null" /> 

</RelativeLayout> 

<RelativeLayout 
    android:id="@+id/option_relative_d" 
    android:layout_width="fill_parent" 
    android:layout_margin="10dp" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal" > 

    <LinearLayout 
     android:id="@+id/option_d" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <LinearLayout 
      android:layout_width="40dp" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" > 

      <Button 
       android:id="@+id/btn_d" 
       android:layout_width="47dp" 
       android:layout_height="19dp" 
       android:layout_gravity="center_horizontal" 
       android:background="@drawable/opgrey" 
       android:gravity="center" 
       android:text="@string/d" 
       android:textColor="#ffffff" 
       android:textSize="12sp" /> 

      <ImageView 
       android:id="@+id/ch_d" 
       android:layout_width="21dp" 
       android:layout_height="18dp" 
       android:layout_marginTop="5dp" 
       android:layout_gravity="center_horizontal" 
       android:src="@drawable/greentick" 
       android:gravity="center" 
       android:textSize="12sp" /> 
     </LinearLayout> 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="center_vertical" 
      android:layout_marginBottom="2dp" 
      android:layout_marginRight="2dp" 
      android:layout_marginTop="2dp" 
      android:orientation="vertical" > 

      <WebView 
       android:id="@+id/ques_option_d" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" /> 
     </LinearLayout> 
    </LinearLayout> 

    <ImageView 
     android:id="@+id/option_image_d" 
     android:layout_width="fill_parent" 
     android:layout_height="match_parent" 
      android:layout_alignBottom="@+id/option_d" 
     android:background="@null" /> 

</RelativeLayout> 

<RelativeLayout 
    android:id="@+id/option_relative_e" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_margin="10dp" 
    android:orientation="horizontal" > 

    <LinearLayout 
     android:id="@+id/option_e" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <LinearLayout 
      android:layout_width="40dp" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" > 

      <Button 
       android:id="@+id/btn_e" 
       android:layout_width="47dp" 
       android:layout_height="19dp" 
       android:layout_gravity="center_horizontal" 
       android:background="@drawable/opgrey" 
       android:gravity="center" 
       android:text="@string/e" 
       android:textColor="#ffffff" 
       android:textSize="12sp" /> 

      <ImageView 
       android:id="@+id/ch_e" 
       android:layout_width="21dp" 
       android:layout_height="18dp" 
       android:layout_marginTop="5dp" 
       android:layout_gravity="center_horizontal" 
       android:src="@drawable/greentick" 
       android:gravity="center" 
       android:textSize="12sp" /> 
     </LinearLayout> 

     <LinearLayout 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="center_vertical" 
      android:layout_marginBottom="2dp" 
      android:layout_marginRight="2dp" 
      android:layout_marginTop="2dp" 
      android:orientation="vertical" > 

      <WebView 
       android:id="@+id/ques_option_e" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" /> 
     </LinearLayout> 
    </LinearLayout> 

    <ImageView 
     android:id="@+id/option_image_e" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
      android:layout_alignBottom="@+id/option_e" 
     android:background="@null" /> 

</RelativeLayout> 

滑動工作正常,但直接進入一個滑動到不同幻燈片時面臨的問題。

幫助我,如果你在過去也面臨同樣的問題。

回答

14

這閃爍,所以我可以讀到這樣這麼多環節的上述問題: -

https://code.google.com/p/android/issues/detail?id=20446

hardware accelerated webview slide-in animation flickering on ICS

WebView "flashing" with white background if hardware acceleration is enabled (Android 3.0+)

代碼

webview.setLayerType(View.LAYER_TYPE_SOFTWARE, null); 

上面的代碼適用於我。

+0

我使用此代碼並添加了2秒的延遲以顯示webview.loadUrl()後的webview。閃爍消失了。謝謝! – herbertD 2014-05-27 04:07:43