应用截图？

Question

我有一个 Google 地图 Android 应用程序，我试图将整个视图的屏幕截图与地图一起捕获。已截取屏幕截图，但 Google 地图全黑，只有 Google 徽标。我使用以下代码：

private void captureScreen() {
    View v = getWindow().getDecorView().getRootView();
    v.setDrawingCacheEnabled(true);
    Bitmap bmp = Bitmap.createBitmap(v.getDrawingCache());
    v.setDrawingCacheEnabled(false);
    try {
        FileOutputStream fos = new FileOutputStream(new File(Environment
                .getExternalStorageDirectory().toString(), "SCREEN"
                + System.currentTimeMillis() + ".png"));
        bmp.compress(Bitmap.CompressFormat.PNG, 100, fos);
        fos.flush();
        fos.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/mapLayout">

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
tools:context="net.aratos.adc.MapActivity"
android:layout_height="0dp"
android:layout_weight="0.8"/>

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="0dp"
    android:layout_weight="0.1"
    android:layout_gravity="center_horizontal">

    <Button
        android:gravity="center"
        android:id="@+id/loadDateButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Load date" />

    <Button
        android:gravity="center"
        android:id="@+id/snapshotButton"
        android:text="Snapshot"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:gravity="center"
        android:id="@+id/exportButton"
        android:text="Export PDF"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

<GridView
    android:orientation="horizontal"
    android:id="@+id/boundsLayout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:numColumns="auto_fit">

</GridView>
</LinearLayout>

我也附上布局的代码。输出截图如下 image

尝试 Brijesh 的代码后，我得到以下结果 output

Answer 1

您可以使用GoogleMap.snapshot方法拍摄地图快照(documentation)

您需要实施

GoogleMap.SnapshotReadyCallback

管理拍摄的快照。

此外，请注意，根据文档：

Note: Images of the map must not be transmitted to your servers, or otherwise used outside of the application. If you need to send a map to another application or user, send data that allows them to reconstruct the map for the new user instead of a snapshot.

Answer 2

以下代码会对您有所帮助

        googleMap.snapshot(new GoogleMap.SnapshotReadyCallback() {

        @Override
        public void onSnapshotReady(Bitmap bitmap) {
            try {
                FileOutputStream fos = new FileOutputStream(new File(Environment
                        .getExternalStorageDirectory().toString(), "SCREEN"
                        + System.currentTimeMillis() + ".png"));
                bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
                fos.flush();
                fos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });

捕获整个屏幕尝试关注

        googleMap.snapshot(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);
                try {
                    FileOutputStream fos = new FileOutputStream(new File(Environment
                            .getExternalStorageDirectory().toString(), "SCREEN"
                            + System.currentTimeMillis() + ".png"));


                    // Write the string to the file
                    bmOverlay.compress(Bitmap.CompressFormat.JPEG, 90, fos);
                    fos.flush();
                    fos.close();
                } catch (FileNotFoundException e) {
                    // TODO Auto-generated catch block
                    Log.d("ImageCapture", "FileNotFoundException");
                    Log.d("ImageCapture", e.getMessage());
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    Log.d("ImageCapture", "IOException");
                    Log.d("ImageCapture", e.getMessage());
                }


            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });

Answer 3

public void captureMapScreen() {
    SnapshotReadyCallback callback = new SnapshotReadyCallback() {

        @Override
        public void onSnapshotReady(Bitmap snapshot) {
            try {
                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()
                                + "/MapScreenShot"
                                + System.currentTimeMillis() + ".png");

                bmOverlay.compress(Bitmap.CompressFormat.PNG, 90, out);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    };

    mMap.snapshot(callback);

}

确保使用 android.graphics.Matrix 而不是 android.opengl.Matrix

希望对您有所帮助。

应用截图？

App Screenshot?

android

google-maps

screenshot