我想对 WebView 的全部内容进行快照。但是，返回的图像始终为空白。你能看看并告诉我我哪里错了。
请不要建议我使用 capturePicture 函数，因为此时该函数已被弃用。
一些代码
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/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);
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, 100, fOut);
fOut.flush();
fOut.close();
bm.recycle();
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
布局.xml
<?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"
/>
非常感谢！！！