机器人：以一个ScreenShoot在滚动型的所有视图

本文介绍了机器人：以一个ScreenShoot在滚动型的所有视图的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我尝试采取ScreenShoot所有视图滚动型，我的滚动型都有溅出的内容屏幕（因此滚动成为可能），我怎么能保证屏幕截图包括不可见的屏幕上？

I try to take a ScreenShoot for all view in ScrollView, my ScrollView has content that spills out of the screen (hence scrolling made possible), how can I ensure that the screenshot includes the elements that are not visible on the screen?

我一直用这个code：

I have been using this code :

scroll_pp=(ScrollView)polis.findViewById(R.id.scroll_pp); int totalHeight = scroll_pp.getChildAt(0).getHeight(); int totalWidth = scroll_pp.getChildAt(0).getWidth(); Bitmap b= MethodSupport.loadBitmapFromView(scroll_pp, totalWidth, totalHeight); String extr = Environment.getExternalStorageDirectory().toString() + File.separator + "Folder"; String fileName = "Test.jpg"; File myPath = new File(extr, fileName); FileOutputStream fos = null; try { fos = new FileOutputStream(myPath); bpress(Bitmap.CompressFormat.JPEG, 100, fos); fos.flush(); fos.close(); MediaStore.Images.Media.insertImage(getActivity().getContentResolver(), b, "Screen", "screen"); }catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } public static Bitmap loadBitmapFromView(View v, int width, int height) { Bitmap b = Bitmap.createBitmap(width , height, Bitmap.Config.ARGB_8888); Canvas c = new Canvas(b); v.layout(0, 0, v.getLayoutParams().width, v.getLayoutParams().height); v.draw(c); return b; }

图片文件创建，但只显示黑屏，而不是我想要的看法，所以是不是有什么毛病我code？是否有任何人能帮助我，好吗？

The Image file created, but it only display the black screen, not the view as I wanted, so Is there something wrong with my code? Is there anyone can help me, please?

更新

请@ 113408的回答后，我得到了错误，这是我的的logcat ：

After follow @113408 's Answer, I got Error, this is my logcat :

08-27 10:40:57.555: E/AndroidRuntime(4957): FATAL EXCEPTION: main 08-27 10:40:57.555: E/AndroidRuntime(4957): java.lang.NullPointerException 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.graphics.Bitmap.createBitmap(Bitmap.java:484) 08-27 10:40:57.555: E/AndroidRuntime(4957): at id.co.ajsmsig.espaj.PemegangPolis.onClick(PemegangPolis.java:1546) 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.view.View.performClick(View.java:4222) 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.view.View$PerformClick.run(View.java:17337) 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.os.Handler.handleCallback(Handler.java:615) 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.os.Handler.dispatchMessage(Handler.java:92) 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.os.Looper.loop(Looper.java:137) 08-27 10:40:57.555: E/AndroidRuntime(4957): at android.app.ActivityThread.main(ActivityThread.java:4895) 08-27 10:40:57.555: E/AndroidRuntime(4957): at java.lang.reflect.Method.invokeNative(Native Method) 08-27 10:40:57.555: E/AndroidRuntime(4957): at java.lang.reflect.Method.invoke(Method.java:511) 08-27 10:40:57.555: E/AndroidRuntime(4957): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994) 08-27 10:40:57.555: E/AndroidRuntime(4957): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761) 08-27 10:40:57.555: E/AndroidRuntime(4957): at dalvik.system.NativeStart.main(Native Method)

有关注意事项：十月8号至27号：40：57.555：E / AndroidRuntime（4957）：在id.co.ajsmsig.espaj.PemegangPolis.onClick（PemegangPolis.java:1546） 是指位图B = Bitmap.createBitmap（u.getDrawingCache（））;

for note : 08-27 10:40:57.555: E/AndroidRuntime(4957): at id.co.ajsmsig.espaj.PemegangPolis.onClick(PemegangPolis.java:1546) is refer to Bitmap b = Bitmap.createBitmap(u.getDrawingCache());

推荐答案

您可以使用此code采取完整的滚动型相同的$ C截图$ C可适应所有类型的查看取值

You can use this code to take a screenshot of your full ScrollView the same code can be adapted to all kind of Views

code：

View u = findViewById(R.id.scroll_pp); u.setDrawingCacheEnabled(true); ScrollView scroll_pp = (ScrollView) findViewById(R.id.scroll_pp); int totalHeight = scroll_pp.getChildAt(0).getHeight(); int totalWidth = scroll_pp.getChildAt(0).getWidth(); u.layout(0, 0, totalWidth, totalHeight); u.buildDrawingCache(true); Bitmap b = Bitmap.createBitmap(u.getDrawingCache()); u.setDrawingCacheEnabled(false); //Save bitmap String extr = Environment.getExternalStorageDirectory().toString() + File.separator + "Folder"; String fileName = "Test.jpg"; File myPath = new File(extr, fileName); FileOutputStream fos = null; try { fos = new FileOutputStream(myPath); bpress(Bitmap.CompressFormat.JPEG, 100, fos); fos.flush(); fos.close(); MediaStore.Images.Media.insertImage(getContentResolver(), b, "Screen", "screen"); }catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }