我有個問題。此時,WebView的capturePicture爲已棄用。哪能代替capturePicture函數
我想問是否有方法來替換函數。我的意思是它可以將網頁流量的捕獲整個(不僅顯示視圖)
感謝
我有個問題。此時,WebView的capturePicture爲已棄用。哪能代替capturePicture函數
我想問是否有方法來替換函數。我的意思是它可以將網頁流量的捕獲整個(不僅顯示視圖)
感謝
我終於找到了解決辦法。
有些代碼
public class WebViewActivity extends Activity {
private static WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
webView = (WebView) findViewById(R.id.webView1);
webView.loadUrl("http://developer.android.com/reference/packages.html");
// webView.loadUrl("http://developer.android.com/training/basics/firstapp/creating-project.html");
webView.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
// do your stuff here
webView.measure(MeasureSpec.makeMeasureSpec(
MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
webView.layout(0, 0, webView.getMeasuredWidth(),
webView.getMeasuredHeight());
webView.setDrawingCacheEnabled(true);
webView.buildDrawingCache();
Bitmap bm = Bitmap.createBitmap(webView.getMeasuredWidth(),
webView.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
Canvas bigcanvas = new Canvas(bm);
Paint paint = new Paint();
int iHeight = bm.getHeight();
bigcanvas.drawBitmap(bm, 0, iHeight, paint);
webView.draw(bigcanvas);
System.out.println("1111111111111111111111="
+ bigcanvas.getWidth());
System.out.println("22222222222222222222222="
+ bigcanvas.getHeight());
if (bm != null) {
try {
String path = Environment.getExternalStorageDirectory()
.toString();
OutputStream fOut = null;
File file = new File(path, "/aaaa.png");
fOut = new FileOutputStream(file);
bm.compress(Bitmap.CompressFormat.PNG, 50, fOut);
fOut.flush();
fOut.close();
bm.recycle();
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
}
的layout.xml的
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
得到錯誤java.lang.IllegalArgumentException:寬度和高度必須> 0 請幫我 –
@YogeshLakhotia:確保在你獲得高度或寬度之前完全加載webview。我使用AsyncTask。我不知道爲什麼,但onPageFinished可以在您的webview完全加載之前運行。我遇到了同樣的問題。我沒有看到你的代碼,所以我只是建議你一些情況。 – lolyoshi
我的問題解決了......我已經回答了代碼。 –
draw()
使用web視圖
實施例:
ImageView imageview;
WebView webview;
class Background extends AsyncTask<Void, Void, Bitmap>
{
@Override
protected Bitmap doInBackground(Void... params)
{
try
{
Thread.sleep(2000);
Bitmap bitmap = Bitmap.createBitmap(webview.getWidth(), webview.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
webview.draw(canvas);
return bitmap;
}
catch (InterruptedException e){}
catch (Exception e){}
return null;
}
@Override
protected void onPostExecute(Bitmap result)
{
imageview.setImageBitmap(result);
}
}
webview.setWebChromeClient(new WebChromeClient()
{
public void onProgressChanged(WebView view, int progress)
{
if(progress==100)
new Background().execute();
}
});
以7-8種方式工作,但只有這種方法適用於我的情況:) – userAndroid
對於應用定位API級21(棒棒糖)和a波夫,請也看到這個問題:http://stackoverflow.com/questions/30078157/webview-draw-not-properly-working-on-latest-android-system-webview-update –