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I have two main issues which are closely linked. I am looking at these problems from a programmatic point of view.
(1) - I wish to take a screenshot of the contents of a SPECIFIC layout, i.e. a ScrollView nested in a LinearLayout.
(2) - As the 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?
This is the current block of code I use. It does the job of taking a screenshot but only for the entire screen. This is even though R.id.boss is the ID of the ScrollView and not the main LinearLayout.
View view = findViewById(R.id.boss);
View v = view.getRootView();// this does not seem to make a difference
v.setDrawingCacheEnabled(true);
v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
v.buildDrawingCache(true);
Bitmap b = Bitmap.createBitmap(u.getDrawingCache());
v.setDrawingCacheEnabled(false);
Thanks in advance.
EDIT:
I've made a few mistakes. I used R.id.boss which is the wrong resource. I am now able to take a screenshot of the scrollview alone, less the out-of-screen parts.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/boss"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="top"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="F"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Analyze via image URL"
android:textAppearance="?android:attr/textAppearanceSmall" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<EditText
android:id="@+id/mUrl"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.7"
android:text="http://" >
<requestFocus />
</EditText>
<ImageView
android:id="@+id/call"
android:layout_width="75dp"
android:layout_height="50dp"
android:layout_weight="0.3"
android:text="ABC"
android:src="@drawable/run" />
</LinearLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="ABC"
android:textAppearance="?android:attr/textAppearanceSmall" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<EditText
android:id="@+id/filepath"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.55" />
<ImageView
android:id="@+id/cam"
android:layout_width="75dp"
android:layout_height="50dp"
android:layout_weight="0.15"
android:src="@drawable/cam" />
<ImageView
android:id="@+id/browse"
android:layout_width="75dp"
android:layout_height="50dp"
android:layout_weight="0.15"
android:src="@drawable/folder"
android:text="B" />
<ImageView
android:id="@+id/upload"
android:layout_width="75dp"
android:layout_height="50dp"
android:layout_weight="0.15"
android:src="@drawable/run"
android:text="A" />
</LinearLayout>
<LinearLayout
android:id="@+id/baba"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ScrollView
android:id="@+id/scroll"
android:layout_width="fill_parent"
android:layout_height="150dp"
android:layout_weight="0.7" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="186dp"
android:orientation="vertical" >
<ImageView
android:id="@+id/pic"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Facial recognition"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/text3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="@+id/avmarwe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Gender and age"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="@+id/skahasd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Expression and mood"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="@+id/dsfsfs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Celebrity Facial Match"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/text4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
</ScrollView>
</LinearLayout>
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom" >
<Button
android:id="@+id/c"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:layout_weight="0.7"
android:text="" />
<Button
android:id="@+id/share"
android:layout_width="70dp"
android:layout_height="50dp"
android:layout_weight="0.3"
android:text="" />
</LinearLayout>
</LinearLayout>
912
Use the usual button combination (Power + Volume down) to capture a screenshot. On the bottom left corner, you'll see a thumbnail of your screenshot with a button below it called Long Screenshot. Tap on it. Scroll down on the page till you reach your desired point and hit Save.
Use the Android Screenshot Shortcut These days, taking screenshots using nothing more than your device is a breeze. Press and hold the Power + Volume Down buttons at the same time, and you'll see a brief onscreen animation followed by a confirmation in the notification bar that the action was successful.
Thanks to you guys, I've finally found out what was wrong.
View v = view.getRootView(); should not be used because it will call the root view which I do not want. I mistakenly thought this did not make a difference because I had entered the wrong resource ID.
MeasureSpec somehow did not give a good account of the width and height. So I ended up using another method:
...
ScrollView z = (ScrollView) findViewById(R.id.scroll);
int totalHeight = z.getChildAt(0).getHeight();
int totalWidth = z.getChildAt(0).getWidth();
u.layout(0, 0, totalWidth, totalHeight);
...
As ScrollView's total height can be determined by the single child element that it has.
After making these changes, I am now able to take a screenshot of a nested ScrollView and all its contents, visible or not. For anyone interested, here is the block of code including the saving of the bitmap:
View u = findViewById(R.id.scroll);
u.setDrawingCacheEnabled(true);
ScrollView z = (ScrollView) findViewById(R.id.scroll);
int totalHeight = z.getChildAt(0).getHeight();
int totalWidth = z.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 = new SimpleDateFormat("yyyyMMddhhmm'_report.jpg'").format(new Date());
File myPath = new File(extr, fileName);
FileOutputStream fos = null;
try {
fos = new FileOutputStream(myPath);
b.compress(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();
}
try this it works fine for me
TableLayout tabLayout = (TableLayout) findViewById(R.id.allview);
if (tabLayout != null) {
Bitmap image = Bitmap.createBitmap(tabLayout.getWidth(),
tabLayout.getHeight(), Config.ARGB_8888);
Canvas b = new Canvas(image);
tabLayout.draw(b);
}
EDIT : after seeing OP's comment
You dont need to think about new activities at all.. Say you are in Activity right now.. Layout A is the main layout for the activity, Layout B and C are two child layouts inside Layout A. Like this,
Layout A -> Parent
|
-------Layout B
|
-------Layout C
Now if you want to take screenshot of C only
1) in onCreate() of activity
LinearLayout myCLayout = (LinearLayout)this.findViewbyId(R.id.my_c_layout);
ViewTreeObserver vto = myCLayout.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
//fully drawn, no need of listener anymore
myCLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
getDrawingBitmap();
}
});
where getDrawingBitmap() is a function..to take your screenshot..
public void getDrawingBitmap(){
LinearLayout myCLayout = (LinearLayout)this.findViewbyId(R.id.my_c_layout);
Bitmap b = myCLayout.getDrawingCache();
File file = saveBitmapAsFile(b);
}
EDIT: For ScrollView
I never tried it.. But I think you can do this..
1) first override scrollView, and override onMeasure function..
public class MyScrollView extends ScrollView{
public MyScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){
super.onMeasure(widthMeasureSpec, yourFullScrollViewHeight));
}
}
and use MyScrollView in your layout.. here yourFullScrollViewHeight is the height of all scrollView content you need to take screenshot of.. I never tried this.. But it might work..
22
Here is the exact solution you want, It will display entire screen including content hidden in your ScrollView
LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);
FrameLayout root = (FrameLayout) inflater.inflate(R.layout.activity_main, null); // activity_main is UI(xml) file we used in our Activity class. FrameLayout is root view of my UI(xml) file.
root.setDrawingCacheEnabled(true);
Bitmap bitmap = getBitmapFromView(this.getWindow().findViewById(R.id.frameLayout)); // here give id of our root layout (here its my FrameLayout's id)
Display bitmap in your ImageView or use it as you want.
Enjoy..
38
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