最终更新
Google已完成功能请求。请参阅this answer below.
原始问题
使用旧版Google Maps Android API,我能够捕获谷歌地图的截图,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,并且效果很好:
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;
}
然而,api的V2使用的新GoogleMap对象没有像MapView那样的“getRootView()”方法。
我试着这样做:
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.basicMap);
View v1 = mapFragment.getView();
但我得到的截图没有任何地图内容,看起来像这样:
有没有人想出如何拍摄新版Google Maps Android API V2的截图?
更新
我也试图以这种方式获取rootView:
View v1 = getWindow().getDecorView().getRootView();
这会产生一个屏幕截图,其中包含屏幕顶部的操作栏,但地图仍然是空白的,就像我附上的屏幕截图一样。
更新
功能请求已提交给Google。如果这是您希望将来谷歌添加的内容,请点击功能请求:Add screenshot ability to Google Maps API V2
答案 0 :(得分:61)
更新 - Google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);
}
图像完成捕获后,将触发标准的“共享图像”对话框,以便用户可以选择分享图像的方式:
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);
}
}
文档为here
答案 1 :(得分:30)
以下是使用示例
捕获Google Map V2屏幕截图的步骤 第1步。打开Android Sdk Manager (Window > Android Sdk Manager)
然后Expand Extras
现在update/install Google Play Services to Revision 10
如果已经installed
在此处阅读备注https://developers.google.com/maps/documentation/android/releases#august_2013
第2步。 Restart Eclipse
第3步。 import com.google.android.gms.maps.GoogleMap.SnapshotReadyCallback;
第4步。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();
}
第5步。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()
工作正常
<强>像:强>
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();
}
}
});
答案 2 :(得分:4)
修改:此答案不再有效 - Google Maps Android API V2上的屏幕截图功能请求已经完成。请参阅this answer for an example。
原始接受的答案
由于使用OpenGL显示新的Android API v2地图,因此无法创建屏幕截图。
答案 3 :(得分:3)
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(我正在寻找的东西),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);
}
答案 4 :(得分:2)
private GoogleMap mMap;
SupportMapFragment mapFragment;
LinearLayout linearLayout;
String jobId="1";
档案文件;
@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) {
}
});
}
}
答案 5 :(得分:1)
我拍摄了Map屏幕截图。这会很有帮助
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();
}
});
}
`
snapShot()方法来获取地图的屏幕截图
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);
}
答案 6 :(得分:0)
我希望这有助于捕捉地图的屏幕截图
方法调用:
package Bank;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
import java.util.logging.Level;
import java.util.logging.Logger;
public class BankMessageListener implements MessageListener{
private Bank bank;
private Logger logger;
public BankMessageListener(Bank bank){
this.bank = bank;
logger = Logger.getLogger("BankMessageListener");
}
public void onMessage(final Message message) {
try {
logger.log(Level.INFO,"Message received: \n" +
"Text: "+((TextMessage)message).getText()
+ "\nID: " +message.getJMSMessageID()
+ "\nReply to: " +((message.getJMSReplyTo() != null) ? message.getJMSReplyTo().toString() : "null")
);
bank.addMessages(((TextMessage) message).getText());
} catch (JMSException e) {
e.printStackTrace();
}
}
}
方法声明:
gmap.setOnMapLoadedCallback(mapLoadedCallback);
答案 7 :(得分:-2)
Eclipse DDMS可以捕获屏幕,即使它是谷歌地图V2。
如果您拥有“root”,请尝试调用/ system / bin / screencap或/ system / bin / screenshot。我是从How Eclipse android DDMS implement "screen capture"
那里学到的