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[android] Add a method to make map snapshots

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Fixes: https://github.com/mapbox/mapbox-gl-native/issues/3466
This commit is contained in:
Vladimir Kurchatkin
2016-03-29 18:00:17 +03:00
committed by Tobrun
parent e692096581
commit 862305d935
6 changed files with 211 additions and 1 deletions
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23
platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
View File

@@ -23,6 +23,7 @@ import android.location.Location;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.CallSuper;
import android.support.annotation.FloatRange;
@@ -2453,6 +2454,28 @@ public class MapView extends FrameLayout {
mMapboxMap = mapboxMap;
}
@UiThread
void snapshot(@NonNull final MapboxMap.SnapshotReadyCallback callback, @Nullable final Bitmap bitmap) {
final TextureView textureView = (TextureView) findViewById(R.id.textureView);
final boolean canUseBitmap = bitmap != null && textureView.getWidth() == bitmap.getWidth() && textureView.getHeight() == bitmap.getHeight();
new AsyncTask<Void, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Void... params) {
if (canUseBitmap) {
return textureView.getBitmap(bitmap);
} else {
return textureView.getBitmap();
}
}
@Override
protected void onPostExecute(Bitmap bitmap) {
callback.onSnapshotReady(bitmap);
}
}.execute();
}
//
// View utility methods
//

15
platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapboxMap.java
View File

@@ -1,5 +1,6 @@
package com.mapbox.mapboxsdk.maps;
import android.graphics.Bitmap;
import android.location.Location;
import android.os.SystemClock;
import android.support.annotation.FloatRange;
@@ -1468,6 +1469,16 @@ public class MapboxMap {
mMapView.update();
}
@UiThread
public void snapshot(@NonNull SnapshotReadyCallback callback, @Nullable final Bitmap bitmap) {
mMapView.snapshot(callback, bitmap);
}
@UiThread
public void snapshot(@NonNull SnapshotReadyCallback callback) {
mMapView.snapshot(callback, null);
}
//
// Interfaces
//
@@ -1689,6 +1700,10 @@ public class MapboxMap {
void onFinish();
}
public interface SnapshotReadyCallback {
void onSnapshotReady(Bitmap snapshot);
}
private class MapChangeCameraPositionListener implements MapView.OnMapChangedListener {
private static final long UPDATE_RATE_MS = 400;

9
platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
View File

@@ -187,7 +187,14 @@
android:name="@string/category"
android:value="@string/category_other" />
</activity>
<activity
android:name=".activity.SnapshotActivity"
android:description="@string/description_snapshot"
android:label="@string/activity_snapshot">
<meta-data
android:name="@string/category"
android:value="@string/category_other" />
</activity>
<!-- Configuration Settings -->
<meta-data

120
platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/SnapshotActivity.java Normal file
View File

@@ -0,0 +1,120 @@
package com.mapbox.mapboxsdk.testapp.activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
import com.mapbox.mapboxsdk.camera.CameraPosition;
import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.constants.MapboxConstants;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.testapp.R;
import com.mapbox.mapboxsdk.testapp.utils.ApiAccess;
public class SnapshotActivity extends AppCompatActivity {
private static final String TAG = "SnapshotActivity";
private MapView mMapView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_snapshot);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayShowHomeEnabled(true);
}
mMapView = (MapView) findViewById(R.id.cameraMapView);
mMapView.setAccessToken(ApiAccess.getToken(this));
mMapView.onCreate(savedInstanceState);
mMapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(@NonNull final MapboxMap mapboxMap) {
// set a style
mapboxMap.setOnCameraChangeListener(new MapboxMap.OnCameraChangeListener() {
@Override
public void onCameraChange(CameraPosition position) {
Log.v(MapboxConstants.TAG, position.toString());
}
});
findViewById(R.id.makeSnapshotButton).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
final long startTime = System.nanoTime();
mapboxMap.snapshot(new MapboxMap.SnapshotReadyCallback() {
@Override
public void onSnapshotReady(Bitmap snapshot) {
long endTime = System.nanoTime();
long duration = (long) ((endTime - startTime) / 1e6);
ImageView snapshotView = (ImageView) findViewById(R.id.snapshotImageView);
snapshotView.setImageBitmap(snapshot);
Toast.makeText(SnapshotActivity.this, String.format("Snapshot taken in %d ms", duration), Toast.LENGTH_LONG).show();
}
});
}
});
}
});
}
@Override
public void onResume() {
super.onResume();
mMapView.onResume();
}
@Override
public void onPause() {
super.onPause();
mMapView.onPause();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mMapView.onSaveInstanceState(outState);
}
@Override
protected void onDestroy() {
super.onDestroy();
mMapView.onDestroy();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mMapView.onLowMemory();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}

42
platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_snapshot.xml Normal file
View File

@@ -0,0 +1,42 @@
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/primary"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/toolbar"
android:orientation="vertical" >
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/cameraMapView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<ImageView
android:id="@+id/snapshotImageView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/button_make_snapshot"
android:id="@+id/makeSnapshotButton"
android:layout_margin="@dimen/fab_margin"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:background="@color/white"/>
</RelativeLayout>

3
platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/strings.xml
View File

@@ -33,6 +33,7 @@
<string name="activity_geocoder">Geocoder</string>
<!-- Other -->
<string name="activity_snapshot">Snapshot Activity</string>
<string name="activity_user_tracking_mode">User tracking mode</string>
<string name="activity_custom_layer">Custom Layer (experimental)</string>
<string name="activity_map_padding">Map Padding</string>
@@ -63,6 +64,7 @@
<string name="description_directions">Example with Directions API</string>
<string name="description_geocoder">Example with Geocoder API</string>
<string name="description_scroll_by">Scroll with pixels in x,y direction</string>
<string name="description_snapshot">Example to make a snapshot of the map</string>
<string name="menuitem_title_concurrent_infowindow">Concurrent Open InfoWindows</string>
@@ -80,6 +82,7 @@
<string name="button_camera_move">Move</string>
<string name="button_camera_ease">Ease</string>
<string name="button_camera_animate">Animate</string>
<string name="button_make_snapshot">Snapshot</string>
<string name="label_fps">FPS:</string>