[英]Capture screen shot of GoogleMap Android API V2
最后更新
Google 已满足功能请求。 请在下面查看此答案。
原问题
使用旧版谷歌地图 Android API,我能够截取谷歌 map 的屏幕截图并通过社交媒体分享。 我使用以下代码捕获屏幕截图并将图像保存到文件中,效果很好:
public String captureScreen()
{
String storageState = Environment.getExternalStorageState();
Log.d("StorageState", "Storage state is: " + storageState);
// image naming and path to include sd card appending name you choose for file
String mPath = this.getFilesDir().getAbsolutePath();
// create bitmap screen capture
Bitmap bitmap;
View v1 = this.mapView.getRootView();
v1.setDrawingCacheEnabled(true);
bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
OutputStream fout = null;
String filePath = System.currentTimeMillis() + ".jpeg";
try
{
fout = openFileOutput(filePath,
MODE_WORLD_READABLE);
// Write the string to the file
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fout);
fout.flush();
fout.close();
}
catch (FileNotFoundException e)
{
// TODO Auto-generated catch block
Log.d("ImageCapture", "FileNotFoundException");
Log.d("ImageCapture", e.getMessage());
filePath = "";
}
catch (IOException e)
{
// TODO Auto-generated catch block
Log.d("ImageCapture", "IOException");
Log.d("ImageCapture", e.getMessage());
filePath = "";
}
return filePath;
}
但是,api 的 V2 使用的新 GoogleMap object 没有像 MapView 那样的“getRootView()”方法。
我试图这样做:
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.basicMap);
View v1 = mapFragment.getView();
但是我得到的屏幕截图没有任何 map 内容,看起来像这样:
有没有人想出如何截取新的谷歌地图 Android API V2 的截图?
更新
我也尝试通过这种方式获取 rootView:
View v1 = getWindow().getDecorView().getRootView();
这会生成屏幕顶部包含操作栏的屏幕截图,但 map 仍然像我附上的屏幕截图一样空白。
更新
已向 Google 提交功能请求。 请 go 星标功能请求,如果这是你希望谷歌在未来添加的东西:Add screenshot ability to Google Maps API V2
更新 - 谷歌添加了快照方法**!:
已完成针对Android Google Map API V2 OpenGL图层的屏幕截图的方法的功能请求。
要截取屏幕截图,只需实现以下界面:
public abstract void onSnapshotReady (Bitmap snapshot)
并致电:
public final void snapshot (GoogleMap.SnapshotReadyCallback callback)
截取屏幕截图的示例,然后显示标准的“图像共享”选项:
public void captureScreen()
{
SnapshotReadyCallback callback = new SnapshotReadyCallback()
{
@Override
public void onSnapshotReady(Bitmap snapshot)
{
// TODO Auto-generated method stub
bitmap = snapshot;
OutputStream fout = null;
String filePath = System.currentTimeMillis() + ".jpeg";
try
{
fout = openFileOutput(filePath,
MODE_WORLD_READABLE);
// Write the string to the file
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fout);
fout.flush();
fout.close();
}
catch (FileNotFoundException e)
{
// TODO Auto-generated catch block
Log.d("ImageCapture", "FileNotFoundException");
Log.d("ImageCapture", e.getMessage());
filePath = "";
}
catch (IOException e)
{
// TODO Auto-generated catch block
Log.d("ImageCapture", "IOException");
Log.d("ImageCapture", e.getMessage());
filePath = "";
}
openShareImageDialog(filePath);
}
};
mMap.snapshot(callback);
}
一旦图像完成捕获,它将触发标准的“共享图像”对话框,以便用户可以选择他们想要共享的方式:
public void openShareImageDialog(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);
final Intent intent = new Intent(android.content.Intent.ACTION_SEND);
intent.setType("image/jpeg");
intent.putExtra(android.content.Intent.EXTRA_STREAM, contentUriFile);
startActivity(Intent.createChooser(intent, "Share Image"));
}
else
{
//This is a custom class I use to show dialogs...simply replace this with whatever you want to show an error message, Toast, etc.
DialogUtilities.showOkDialogWithText(this, R.string.shareImageFailed);
}
}
文档在这里
以下是捕获Google Map V2屏幕截图的步骤
步骤1.打开Android Sdk Manager (Window > Android Sdk Manager)
然后Expand Extras
现在update/install Google Play Services to Revision 10
忽略此步骤(如果已经installed
在此处阅读说明https://developers.google.com/maps/documentation/android/releases#august_2013
步骤2. Restart Eclipse
第3步。 import com.google.android.gms.maps.GoogleMap.SnapshotReadyCallback;
步骤4.制作方法以捕获/存储地图的屏幕/图像,如下所示
public void CaptureMapScreen()
{
SnapshotReadyCallback callback = new SnapshotReadyCallback() {
Bitmap bitmap;
@Override
public void onSnapshotReady(Bitmap snapshot) {
// TODO Auto-generated method stub
bitmap = snapshot;
try {
FileOutputStream out = new FileOutputStream("/mnt/sdcard/"
+ "MyMapScreen" + System.currentTimeMillis()
+ ".png");
// above "/mnt ..... png" => is a storage path (where image will be stored) + name of image you can customize as per your Requirement
bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
} catch (Exception e) {
e.printStackTrace();
}
}
};
myMap.snapshot(callback);
// myMap is object of GoogleMap +> GoogleMap myMap;
// which is initialized in onCreate() =>
// myMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map_pass_home_call)).getMap();
}
步骤5.现在调用此CaptureMapScreen()
方法来捕获图像
在我的情况下,我calling this method on Button click in my onCreate()
,这是正常的
喜欢:
Button btnCap = (Button) findViewById(R.id.btnTakeScreenshot);
btnCap.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
CaptureMapScreen();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
});
编辑 :此答案不再有效 - 已完成Google Maps Android API V2上的屏幕截图功能请求。 请参阅此答案以获取示例 。
原始接受的答案
由于使用OpenGL显示新的Android API v2 Maps,因此无法创建屏幕截图。
我制作了地图截图。它会很有帮助
private GoogleMap map;
private static LatLng latLong;
`
public void onMapReady(GoogleMap googleMap) {
map = googleMap;
setMap(this.map);
animateCamera();
map.moveCamera (CameraUpdateFactory.newLatLng (latLong));
map.setOnMapLoadedCallback (new GoogleMap.OnMapLoadedCallback () {
@Override
public void onMapLoaded() {
snapShot();
}
});
}
`
用于截取地图截图的snapShot()方法
public void snapShot(){
GoogleMap.SnapshotReadyCallback callback=new GoogleMap.SnapshotReadyCallback () {
Bitmap bitmap;
@Override
public void onSnapshotReady(Bitmap snapshot) {
bitmap=snapshot;
try{
file=new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),"map.png");
FileOutputStream fout=new FileOutputStream (file);
bitmap.compress (Bitmap.CompressFormat.PNG,90,fout);
Toast.makeText (PastValuations.this, "Capture", Toast.LENGTH_SHORT).show ();
}catch (Exception e){
e.printStackTrace ();
Toast.makeText (PastValuations.this, "Not Capture", Toast.LENGTH_SHORT).show ();
}
}
};map.snapshot (callback);
}
由于最高投票的答案不适用于地图片段顶部的折线和其他叠加(我在寻找什么),我想分享这个解决方案。
public void captureScreen()
{
GoogleMap.SnapshotReadyCallback callback = new GoogleMap.SnapshotReadyCallback()
{
@Override
public void onSnapshotReady(Bitmap snapshot) {
try {
getWindow().getDecorView().findViewById(android.R.id.content).setDrawingCacheEnabled(true);
Bitmap backBitmap = getWindow().getDecorView().findViewById(android.R.id.content).getDrawingCache();
Bitmap bmOverlay = Bitmap.createBitmap(
backBitmap.getWidth(), backBitmap.getHeight(),
backBitmap.getConfig());
Canvas canvas = new Canvas(bmOverlay);
canvas.drawBitmap(snapshot, new Matrix(), null);
canvas.drawBitmap(backBitmap, 0, 0, null);
OutputStream fout = null;
String filePath = System.currentTimeMillis() + ".jpeg";
try
{
fout = openFileOutput(filePath,
MODE_WORLD_READABLE);
// Write the string to the file
bmOverlay.compress(Bitmap.CompressFormat.JPEG, 90, fout);
fout.flush();
fout.close();
}
catch (FileNotFoundException e)
{
// TODO Auto-generated catch block
Log.d("ImageCapture", "FileNotFoundException");
Log.d("ImageCapture", e.getMessage());
filePath = "";
}
catch (IOException e)
{
// TODO Auto-generated catch block
Log.d("ImageCapture", "IOException");
Log.d("ImageCapture", e.getMessage());
filePath = "";
}
openShareImageDialog(filePath);
} catch (Exception e) {
e.printStackTrace();
}
}
};
;
map.snapshot(callback);
}
private GoogleMap mMap;
SupportMapFragment mapFragment;
LinearLayout linearLayout;
String jobId="1";
文件文件;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate (savedInstanceState);
setContentView (R.layout.activity_maps);
linearLayout=(LinearLayout)findViewById (R.id.linearlayout);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
mapFragment = (SupportMapFragment)getSupportFragmentManager ()
.findFragmentById (R.id.map);
mapFragment.getMapAsync (this);
//Taking Snapshot of Google Map
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng (-26.888033, 75.802754);
mMap.addMarker (new MarkerOptions ().position (sydney).title ("Kailash Tower"));
mMap.moveCamera (CameraUpdateFactory.newLatLng (sydney));
mMap.setOnMapLoadedCallback (new GoogleMap.OnMapLoadedCallback () {
@Override
public void onMapLoaded() {
snapShot();
}
});
}
// Initializing Snapshot Method
public void snapShot(){
GoogleMap.SnapshotReadyCallback callback=new GoogleMap.SnapshotReadyCallback () {
Bitmap bitmap;
@Override
public void onSnapshotReady(Bitmap snapshot) {
bitmap=snapshot;
bitmap=getBitmapFromView(linearLayout);
try{
file=new File (getExternalCacheDir (),"map.png");
FileOutputStream fout=new FileOutputStream (file);
bitmap.compress (Bitmap.CompressFormat.PNG,90,fout);
Toast.makeText (MapsActivity.this, "Capture", Toast.LENGTH_SHORT).show ();
sendSceenShot (file);
}catch (Exception e){
e.printStackTrace ();
Toast.makeText (MapsActivity.this, "Not Capture", Toast.LENGTH_SHORT).show ();
}
}
};mMap.snapshot (callback);
}
private Bitmap getBitmapFromView(View view) {
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas (returnedBitmap);
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null) {
//has background drawable, then draw it on the canvas
bgDrawable.draw(canvas);
} else{
//does not have background drawable, then draw white background on the canvas
canvas.drawColor(Color.WHITE);
}
view.draw(canvas);
return returnedBitmap;
}
//Implementing Api using Retrofit
private void sendSceenShot(File file) {
RequestBody job=null;
Gson gson = new GsonBuilder ()
.setLenient ()
.create ();
Retrofit retrofit = new Retrofit.Builder ()
.baseUrl (BaseUrl.url)
.addConverterFactory (GsonConverterFactory.create (gson))
.build ();
final RequestBody requestBody = RequestBody.create (MediaType.parse ("image/*"),file);
job=RequestBody.create (MediaType.parse ("text"),jobId);
MultipartBody.Part fileToUpload = MultipartBody.Part.createFormData ("name",file.getName (), requestBody);
API service = retrofit.create (API.class);
Call<ScreenCapture_Pojo> call=service.sendScreen (job,fileToUpload);
call.enqueue (new Callback<ScreenCapture_Pojo> () {
@Override
public void onResponse(Call <ScreenCapture_Pojo> call, Response<ScreenCapture_Pojo> response) {
if (response.body ().getMessage ().equalsIgnoreCase ("Success")){
Toast.makeText (MapsActivity.this, "success", Toast.LENGTH_SHORT).show ();
}
}
@Override
public void onFailure(Call <ScreenCapture_Pojo> call, Throwable t) {
}
});
}
}
我希望这有助于捕获地图的屏幕截图
方法调用:
gmap.setOnMapLoadedCallback(mapLoadedCallback);
方法声明:
final SnapshotReadyCallback snapReadyCallback = new SnapshotReadyCallback() {
Bitmap bitmap;
@Override
public void onSnapshotReady(Bitmap snapshot) {
bitmap = snapshot;
try {
//do something with your snapshot
imageview.setImageBitmap(bitmap);
} catch (Exception e) {
e.printStackTrace();
}
}
};
GoogleMap.OnMapLoadedCallback mapLoadedCallback = new GoogleMap.OnMapLoadedCallback() {
@Override
public void onMapLoaded() {
gmap.snapshot(snapReadyCallback);
}
};
使用 mapcalback 获取地图截图
GoogleMap.SnapshotReadyCallback callback = new GoogleMap.SnapshotReadyCallback() {
Bitmap bitmap=null;
@Override
public void onSnapshotReady(Bitmap snapshot) {
// TODO Auto-generated method stub
bitmap = snapshot;
try {
saveImage(bitmap);
Toast.makeText(getActivity().getApplicationContext(), "Successful.Screenshot Saved.", Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
}
private void saveImage(Bitmap bitmap) throws IOException {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
Date date = new Date();
CharSequence format = android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", date);
String dirpath = Environment.getExternalStorageDirectory() + "";
File file = new File(dirpath);
if (!file.exists()) {
boolean mkdir = file.mkdir();
}
String path1 = dirpath + "/Documents/SCREENSHOT/";
File imageurl1 = new File(path1);
imageurl1.mkdirs();
File f = new File(path1 +"/"+ format + ".png");
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
fo.close();
}
};
mMap.snapshot(callback);
Eclipse DDMS可以捕获屏幕,即使它是谷歌地图V2。
如果你有“root”,请尝试调用/ system / bin / screencap或/ system / bin / screenshot。 我从Eclipse android DDMS如何实现“屏幕截图”中了解到
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