Android WebView實現頂部進度條
阿新 • • 發佈:2020-01-07
專案中用到WebView加上進度條放在頂部,讓使用者知道載入進度情況,可以提高使用者體驗:
效果:
佈局:
<RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <WebView android:id="@+id/webView" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@+id/toolbar_container" /> <ProgressBar android:id="@+id/progressBar" style="@style/crowd_item_progressBar" android:layout_width="match_parent" android:layout_height="3dp" android:layout_below="@+id/toolbar_container" android:background="@drawable/crowd_progressbar_unselect" /> </RelativeLayout>
進度條樣式:
<style name="crowd_item_progressBar"> <item name="android:indeterminateOnly">false</item> <item name="android:progressDrawable">@drawable/crowd_progressbar_background</item> <item name="android:minHeight">10dp</item> <item name="android:maxHeight">10dp</item> </style>
進度圖片:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id/progress" > <clip> <shape> <solid android:color="@color/selected"/> <!--<corners android:radius="1.5dp"/>--> </shape> </clip> </item> </layer-list>
程式碼:
public class WebChromeClient extends android.webkit.WebChromeClient { @Override public void onProgressChanged(WebView view,int newProgress) { if (newProgress == 100) { mProgressBar.setVisibility(GONE); } else { if (mProgressBar.getVisibility() == GONE) mProgressBar.setVisibility(VISIBLE); mProgressBar.setProgress(newProgress); } super.onProgressChanged(view,newProgress); } } @Override protected void onScrollChanged(int l,int t,int oldl,int oldt) { LayoutParams lp = (LayoutParams) mProgressBar.getLayoutParams(); lp.x = l; lp.y = t; mProgressBar.setLayoutParams(lp); super.onScrollChanged(l,t,oldl,oldt); } }
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。