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How to take a screenshot on Android?

I am trying to take a screenshot using the code below, I click the button takeScreenshot() is attached to but nothing happens.
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
// image naming and path to include sd card appending name you choose for file
String mPath = Environment.getExternalStorageDirectory().toString() + "/" + now + ".jpg";
// create bitmap screen capture
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
File imageFile = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
} catch (Throwable e) {
// Several error may come out with file handling or DOM
e.printStackTrace();
}

Try this, first create class:
public class TakeScreenshot {
public static Bitmap takescreenshot(View view) {
view.setDrawingCacheEnabled(true);
view.buildDrawingCache(true);
Bitmap b = Bitmap.createBitmap(view.getDrawingCache());
view.setDrawingCacheEnabled(false);
return b;
}
public static Bitmap takescreenshotofview(View view) {
return takescreenshot(view.getRootView());
}}
And in MainActivity:
public void onClick(View view) {
Bitmap b = TakeScreenshot.takescreenshotview(imageView);
imageView.setImageBitmap(b);
}

How to save Gif files from url into my phone?

I'm a beginner Android Developer (graduating univ and looking for a job)
So, I'm developing app uploading so many GIF files and others downloading and save their phones.
I can download GIF or other image files and save to my directory. But the problem is that Bitmap.compress not support GIF(only png,jpg..etc).
So, I compressed GIF files to png or jpg. As expected, the image didn't animated. My images are all GIF files. How can I compress GIF files and save to my directory??
Bellow is my code
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
final ViewGroup view1 = (ViewGroup) inflater.inflate(R.layout.fragment1, container, false);
Button button = (Button) view1.findViewById(R.id.saveBtn);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
new Thread(new Runnable() {
#Override
public void run() {
try{
bm = getBitmap(myUrl);
}catch (Exception e){
}finally {
if(bm != null){
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
getAlbumStorageDir(albumName,"GifImage_"+num);
num++;
}//end run()
});
}
}
}
}).start();
return view1;
}
private Bitmap getBitmap(String url) {
URL imgUrl = null;
HttpURLConnection connection = null;
InputStream is = null;
Bitmap retBitmap = null;
try{
imgUrl = new URL(url);
connection = (HttpURLConnection) imgUrl.openConnection();
connection.setDoInput(true);
connection.connect();
is = connection.getInputStream(); // get inputstream
retBitmap = BitmapFactory.decodeStream(is);
}catch(Exception e) {
e.printStackTrace();
return null;
}finally {
if(connection!=null) {
connection.disconnect();
}
return retBitmap;
}
}
public void getAlbumStorageDir(String albumName, String imageName) {
String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath();
String folder_name = "/" + albumName + "/";
String file_name = imageName;
String string_path = root + folder_name;
String save_path = string_path + file_name;
File file_path;
try {
file_path = new File(string_path);
if (!file_path.isDirectory()) {
file_path.mkdirs();
}
FileOutputStream out = new FileOutputStream(string_path + file_name);
bm.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
getActivity().sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://"+save_path))); //갤러리 갱신
Toast.makeText(getContext(), "save success ", Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
}
}
}

CursorAdapter with images are loading weird

I have a simple CursorAdapter that gets a title and image.
It shows the title and then loads the image from the Internet.
However, when I call the image loader the image is loaded at the wrong place, and it starts going really wild: see here.
My complete code is here.
The adapter is RestaurantListActivityCursorAdapter
public class RestaurantListActivityCursorAdapter extends CursorAdapter {
/* Api variables */
String websiteURL = "http://cicolife.com";
public RestaurantListActivityCursorAdapter(Context context, Cursor cursor) {
super(context, cursor, 0);
}
#Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return LayoutInflater.from(context).inflate(R.layout.activity_main_list_item, parent, false);
}
#Override
public void bindView(View view, Context context, Cursor cursor) {
// Extract properties from cursor
int get_Id = cursor.getInt(cursor.getColumnIndexOrThrow("_id"));
String getTitle = cursor.getString(cursor.getColumnIndexOrThrow("title"));
String getImage = cursor.getString(cursor.getColumnIndexOrThrow("image"));
// Name
TextView listViewTitle = (TextView) view.findViewById(R.id.listViewTitle);
listViewTitle.setText(getTitle);
// Img
ImageView listViewImage = (ImageView) view.findViewById(R.id.listViewImage);
if(getImage != null) {
if (!(getImage.equals(""))) {
String destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+ File.separatorChar+"/Android/data/com.nettport.restaurants/imgs";
File file = new File (destinationPath, getImage);
if (file.exists ()){
Bitmap myBitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
listViewImage.setImageBitmap(myBitmap);
}
else {
String loadImage = websiteURL + "/_cache/" + getImage;
new HttpRequestImageLoadTask(context, loadImage, listViewImage, getImage,"imgs").execute();
}
}
}
}
}
The image loader HttpRequestImageLoadTask
public class HttpRequestImageLoadTask extends AsyncTask<Void, Void, Bitmap> {
private String url;
private ImageView imageView;
private LinearLayout linearLayout;
private Resources resources;
private Context context;
private String storeDirectory;
private String imageName;
public interface TaskListener {
void onFinished(String result);
}
public HttpRequestImageLoadTask(Context ctx, String url, ImageView imageView, String imgName, String storeDirectory) {
this.context = ctx;
this.url = url;
this.imageView = imageView;
this.imageName = imgName;
this.storeDirectory = storeDirectory;
}
public HttpRequestImageLoadTask(Context ctx, String url, LinearLayout linearLayout, Resources resources, String imgName, String storeDirectory) {
this.context = ctx;
this.url = url;
this.linearLayout = linearLayout;
this.imageName = imgName;
this.storeDirectory = storeDirectory;
}
#Override
protected Bitmap doInBackground(Void... params) {
if (checkIfCacheExists(imageName)) {
String destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android/data/com.nettport.restaurants/" + storeDirectory;
File file = new File (destinationPath, imageName);
Bitmap myBitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
return myBitmap;
} else {
try {
URL urlConnection = new URL(url);
HttpURLConnection connection = (HttpURLConnection) urlConnection
.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
saveImage(myBitmap);
return myBitmap;
} catch(Exception e){
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(Bitmap result) {
super.onPostExecute(result);
if(imageView != null) {
imageView.setImageBitmap(result);
} else {
if(linearLayout != null){
BitmapDrawable background = new BitmapDrawable(resources, result);
linearLayout.setBackground(background);
}
}
}
public boolean checkIfCacheExists(String imgName){
String destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android/data/com.nettport.restaurants/" + storeDirectory;
File file = new File (destinationPath, imgName);
return file.exists();
}
private void saveImage(Bitmap finalBitmap) {
// Make dir
String destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android/data/com.nettport.restaurants/" + storeDirectory;
File folder = new File(destinationPath);
try {
if (!folder.exists()) {
// Make Android
destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android";
folder = new File(destinationPath);
if (!folder.exists()) {
folder.mkdir();
}
// Make Android/data
destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android/data";
folder = new File(destinationPath);
if (!folder.exists()) {
folder.mkdir();
}
// Make Android/data/com.nettport.restaurants
destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android/data/com.nettport.restaurants";
folder = new File(destinationPath);
if (!folder.exists()) {
folder.mkdir();
}
// Make Android/data/com.nettport.restaurants/storeDirectory
destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+File.separatorChar+"/Android/data/com.nettport.restaurants/" + storeDirectory;
folder = new File(destinationPath);
if (!folder.exists()) {
folder.mkdir();
}
}
} catch (Exception e){
Toast.makeText(context, "Could not create directory:\n" + e.toString(), Toast.LENGTH_LONG).show();
}
if(imageName != null) {
File file = new File(destinationPath, imageName);
if (file.exists()) file.delete();
try {
FileOutputStream out = new FileOutputStream(file);
finalBitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
out.flush();
out.close();
} catch (Exception e) {
// Toast.makeText(context, "Cant save image\n" + e.toString(), Toast.LENGTH_LONG).show();
}
}
}
}

You have not put any else condition for your ImageView in your adapter. I see there are several else blocks are missing here.
if(getImage != null) {
if (!(getImage.equals(""))) {
String destinationPath = android.os.Environment.getExternalStorageDirectory().getPath()+ File.separatorChar+"/Android/data/com.nettport.restaurants/imgs";
File file = new File (destinationPath, getImage);
if (file.exists()){
Bitmap myBitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
listViewImage.setImageBitmap(myBitmap);
} else {
String loadImage = websiteURL + "/_cache/" + getImage;
// Add nothing here when the image is being fetched
listViewImage.setImageBitmap(null);
new HttpRequestImageLoadTask(context, loadImage, listViewImage, getImage,"imgs").execute();
}
} else {
// Add an else block here when image is equals ""
listViewImage.setImageBitmap(null);
}
} else {
// Add an else block here when image is null
listViewImage.setImageBitmap(null);
}
You need to specify every possible combination in your adapter while loading the images in your ImageView.
And if you have the image url from server, just use Glide to load the images when they are not available in cache.

Screenshot Black in Android

I've been working out how to take a screenshot programmatically in android, however when it screenshots I get a toolbar and black screen captured instead of what is actually on the screen.
I've also tried to screenshot a particular TextView within the custom InfoWindow layout I created for the google map. But that creates a null pointer exception on the second line below.
TextView v1 = (TextView)findViewById(R.id.tv_code);
v1.setDrawingCacheEnabled(true);
Is there anyway to either actually screenshot what is on the screen without installing android screenshot library or to screenshot a TextView within a custom InfoWindow layout
This is my screenshot method:
/**
* Method to take a screenshot programmatically
*/
private void takeScreenshot(){
try {
//TextView I could screenshot instead of the whole screen:
//TextView v1 = (TextView)findViewById(R.id.tv_code);
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "test.jpg");
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
fo.flush();
fo.close();
MediaStore.Images.Media.insertImage(getContentResolver(), f.getAbsolutePath(), f.getName(), f.getName());
Log.d("debug", "Screenshot saved to gallery");
Toast.makeText(HuntActivity.this,"Code Saved!",Toast.LENGTH_LONG).show();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
EDIT: I have changed the method to the one provided from the source
How can i take/merge screen shot of Google map v2 and layout of xml both programmatically?
However it does not screenshot anything.
public void captureMapScreen() {
GoogleMap.SnapshotReadyCallback callback = new GoogleMap.SnapshotReadyCallback() {
#Override
public void onSnapshotReady(Bitmap snapshot) {
try {
View mView = getWindow().getDecorView().getRootView();
mView.setDrawingCacheEnabled(true);
Bitmap backBitmap = mView.getDrawingCache();
Bitmap bmOverlay = Bitmap.createBitmap(
backBitmap.getWidth(), backBitmap.getHeight(),
backBitmap.getConfig());
Canvas canvas = new Canvas(bmOverlay);
canvas.drawBitmap(backBitmap, 0, 0, null);
canvas.drawBitmap(snapshot, new Matrix(), null);
FileOutputStream out = new FileOutputStream(
Environment.getExternalStorageDirectory()
+ "/"
+ System.currentTimeMillis() + ".jpg");
bmOverlay.compress(Bitmap.CompressFormat.JPEG, 90, out);
} catch (Exception e) {
e.printStackTrace();
}
}
};
mMap.snapshot(callback);
}

Use this code
private void takeScreenshot() {
AsyncTask<Void, Void, Void> asyc = new AsyncTask<Void, Void, Void>() {
#Override
protected void onPreExecute() {
super.onPreExecute();
objUsefullData.showProgress("Please wait", "");
}
#Override
protected Void doInBackground(Void... params) {
try {
// create bitmap screen capture
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
bitmapscreen_shot = Bitmap.createBitmap(v1
.getDrawingCache());
v1.setDrawingCacheEnabled(false);
String state = Environment.getExternalStorageState();
File folder = null;
if (state.contains(Environment.MEDIA_MOUNTED)) {
folder = new File(
Environment.getExternalStorageDirectory()
+ "/piccapella");
} else {
folder = new File(
Environment.getExternalStorageDirectory()
+ "/piccapella");
}
boolean success = true;
if (!folder.exists()) {
success = folder.mkdirs();
}
if (success) {
// Create a media file name
String timeStamp = new SimpleDateFormat(
"yyyyMMdd_HHmmss", Locale.getDefault())
.format(new java.util.Date());
imageFile = new File(folder.getAbsolutePath()
+ File.separator + "IMG_" + timeStamp + ".jpg");
/*
* Toast.makeText(AddTextActivity.this,
* "saved Image path" + "" + imageFile,
* Toast.LENGTH_SHORT) .show();
*/
imageFile.createNewFile();
} else {
/*
* Toast.makeText(AddTextActivity.this,
* "Image Not saved", Toast.LENGTH_SHORT).show();
*/
}
ByteArrayOutputStream ostream = new ByteArrayOutputStream();
// save image into gallery
bitmapscreen_shot.compress(CompressFormat.JPEG, 100,
ostream);
FileOutputStream fout = new FileOutputStream(imageFile);
fout.write(ostream.toByteArray());
fout.close();
Log.e("image_screen_shot", "" + imageFile);
} catch (Throwable e) {
// Several error may come out with file handling or OOM
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
objUsefullData.dismissProgress();
}
};
asyc.execute();
}
Hope this will help you

I have figured it out !
/**
* Method to take a screenshot programmatically
*/
private void takeScreenshot(){
GoogleMap.SnapshotReadyCallback callback = new GoogleMap.SnapshotReadyCallback() {
#Override
public void onSnapshotReady(Bitmap bitmap) {
Bitmap b = bitmap;
String timeStamp = new SimpleDateFormat(
"yyyyMMdd_HHmmss", Locale.getDefault())
.format(new java.util.Date());
String filepath = timeStamp + ".jpg";
try{
OutputStream fout = null;
fout = openFileOutput(filepath,MODE_WORLD_READABLE);
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fout);
fout.flush();
fout.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
saveImage(filepath);
}
};
mMap.snapshot(callback);
}
/**
* Method to save the screenshot image
* #param filePath the file path
*/
public void saveImage(String filePath)
{
File file = this.getFileStreamPath(filePath);
if(!filePath.equals(""))
{
final ContentValues values = new ContentValues(2);
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
values.put(MediaStore.Images.Media.DATA, file.getAbsolutePath());
final Uri contentUriFile = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Toast.makeText(HuntActivity.this,"Code Saved to files!",Toast.LENGTH_LONG).show();
}
else
{
System.out.println("ERROR");
}
}
I have adapted the code from this link so it doesn't share and instead just saves the image.
Capture screen shot of GoogleMap Android API V2
Thanks for everyones help

Please try with the code below:
private void takeScreenshot(){
try {
//TextView I could screenshot instead of the whole screen:
//TextView v1 = (TextView)findViewById(R.id.tv_code);
Bitmap bitmap = null;
Bitmap bitmap1 = null;
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
bitmap = Bitmap.createBitmap(v1.getDrawingCache());
try {
if (bitmap != null)
bitmap1 = Bitmap.createBitmap(bitmap, 0, 0,
v1.getWidth(), v1.getHeight());
} catch (OutOfMemoryError e) {
e.printStackTrace();
}
v1.setDrawingCacheEnabled(false);
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap1.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "test.jpg");
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
fo.flush();
fo.close();
MediaStore.Images.Media.insertImage(getContentResolver(), f.getAbsolutePath(), f.getName(), f.getName());
Log.d("debug", "Screenshot saved to gallery");
Toast.makeText(HuntActivity.this,"Code Saved!",Toast.LENGTH_LONG).show();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}

I faced this issue. After v1.setDrawingCacheEnabled(true); I added,
v1.buildDrawingCache();
And put some delay to call the takeScreenshot(); method.
It is fixed.

How to: Save the canvas as image on SD card and always keeps the first picture

I'm creating a android app that has the following purpose:
Save the canvas as image on SD card
Always keep the first picture even after I clean (with ClearPaint button)
Paint a new picture will keep the previous image again
Code:
Button Colorpaint = (Button) findViewById(R.id.color);
Colorpaint.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
int _color = R.color.red;
new PickerDialog(v.getContext(),new OnColorChangedListener() {
public void colorChanged(int color) {
mPaint.setColor(color);
Log.i("TAG", "mpaint one" +mPaint);
}
}, mPaint.getColor(), _color).show();
Log.i("TAG", "mpaint two" +mPaint);
}
});
ClearPaint = (Button) findViewById(R.id.ClearPaint);
ClearPaint.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mBitmap.eraseColor(Color.TRANSPARENT);
mPath.reset();
mView.invalidate();
}
});
btn_shoot = (Button)findViewById(R.id.btn_shoot);
btn_shoot.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
View view = findViewById(R.id.item);
view.setDrawingCacheEnabled(true);
Bitmap bitmap = view.getDrawingCache();
BitmapDrawable bitmapDrawable = new BitmapDrawable(bitmap);
if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
//we check if external storage is available, otherwise display an error message to the user
File sdCard = Environment.getExternalStorageDirectory();
File directory = new File (sdCard.getAbsolutePath() + "/Basketball_Coach_Board");
directory.mkdirs();
String filename = "tactics" + i + ".jpg";
File yourFile = new File(directory, filename);
while (yourFile.exists()) {
i++;
filename = "tactics" + i + ".jpg";
yourFile = new File(directory, filename);
}
if (!yourFile.exists()) {
if (directory.canWrite())
{
try {
FileOutputStream out = new FileOutputStream(yourFile, true);
bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
out.flush();
out.close();
Toast.makeText(MainActivity.this, "Tactics saved at /sdcard/Basketball_Coach_Board/tactics" + i + ".jpg", Toast.LENGTH_SHORT).show();
i++;
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
else
{
Toast.makeText(MainActivity.this, "SD Card not available!", Toast.LENGTH_SHORT).show();
}
}
});

I guess this is because after successfully taking the picture you don't reset the drawing cache to false with: view.setDrawingCacheEnabled(false);