mAnimHandler.post(new Runnable() { @Override public void run() { marker.setIcon(mSteamFrames.nextFrame()); // Next frame in 32 ms mAnimHandler.postDelayed(this, 32); } });
ColorMatrix desatMatrix = new ColorMatrix(); desatMatrix.setSaturation(restaurantRating); ColorFilter paintColorFilter = new ColorMatrixColorFilter(desatMatrix); Paint paint = new Paint(); paint.setColorFilter(paintColorFilter); Canvas canvas = new Canvas(newImage); canvas.drawBitmap(oldImage, 0, 0, paint);
compile 'com.google.maps.android:android-maps-utils:0.3+'
public interface ClusterItem { LatLng getPosition(); }
mClusterManager = new ClusterManager<>(this, mMap); mMap.setOnCameraChangeListener(mClusterManager); mMap.setOnMarkerClickListener(mClusterManager);
mClusterManager.addItem(clusterItem);
mHeatmapTileProvider = new HeatmapTileProvider.Builder() .data(mLatLngCollection) .build();
mTileOverlay = mMap.addTileOverlay( new TileOverlayOptions().tileProvider(mHeatmapTileProvider));
<script src="https://maps.googleapis.com/maps/api/js"></script> ... <script> function initMap() { var map = new google.maps.Map(document.getElementById('map'), { center: {lat: -34.397, lng:150.644}, zoom:8 }); } google.maps.event.addDomListener(window, 'load', initMap); </script>
<script> function initMap() { var map = new google.maps.Map(document.getElementById('map'), { center: {lat: -34.397, lng:150.644}, zoom:8 }); } </script> <script src="https://maps.googleapis.com/maps/api/js?callback=initMap" async defer></script>
adb shell pm list permissions -g -d
mFragment = (SearchFragment) getFragmentManager() .findFragmentById(R.id.search_fragment); if (!USE_INTERNAL_SPEECH_RECOGNIZER) { mSpeechRecognitionCallback = new SpeechRecognitionCallback() { @Override public void recognizeSpeech() { if (DEBUG) Log.v(TAG, "recognizeSpeech"); // ACTION_RECOGNIZE_SPEECH startActivityForResult(mFragment.getRecognizerIntent(), REQUEST_SPEECH); } }; mFragment.setSpeechRecognitionCallback(mSpeechRecognitionCallback); }
com.android.support:support-v4:23.0.1
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
GoogleApiClient
@Override public void onConnectionFailed(ConnectionResult result) { if (mResolvingError) { // Already attempting to resolve an error. return; } else if (result.hasResolution()) { try { mResolvingError = true; result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR); } catch (SendIntentException e) { // There was an error with the resolution intent. Try again. mGoogleApiClient.connect(); } } else { // Show dialog using GooglePlayServicesUtil.getErrorDialog() showErrorDialog(result.getErrorCode()); mResolvingError = true; } }
ActivityCompat
Fragment
ContextCompat
checkSelfPermission
requestPermissions
private static final int REQUEST_CODE_LOCATION = 2; if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) { // Request missing location permission. ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_CODE_LOCATION); } else { // Location permission has been granted, continue as usual. Location myLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient); }
onRequestPermissionsResult
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { if (requestCode == REQUEST_CODE_LOCATION) { if(grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { // success! Location myLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient); } else { // Permission was denied or request was cancelled } }
shouldShowRequestPermissionRationale
private static final int REQUEST_CODE_LOCATION = 2; if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) { // Check Permissions Now if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) { // Display UI and wait for user interaction } else { ActivityCompat.requestPermissions( this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_CODE_LOCATION); } } else { // permission has been granted, continue as usual Location myLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient); }
build.gradle
colors.xml
通常
xhdpi
xxhdpi
xxxhdpi
ng-upgrade
[(property-name)]="expression"
<input type="text" ng-model="model.name" />
<input type="text" [(ng-model)]="model.name" />
ACTION_IMAGE_CAPTURE
ContextCompat.checkSelfPermission()（
requestPermissions()
shouldShowRequestPermissionRationale()
