我正在尝试在我的第二个主要活动上实施室内位置。我收到以下错误。我想按下室内导航按钮在室内有地图并在室内显示你的位置。提前谢谢
Information:Gradle tasks [:app:assembleDebug]
Error:(167, 99) error: cannot find symbol variable map
Error:(145, 40) error: cannot find symbol variable activity_maps
Main2Activity
package com.Design.Design.activity;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Looper;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.widget.Toast;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptor;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.GroundOverlay;
import com.google.android.gms.maps.model.GroundOverlayOptions;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.indooratlas.android.sdk.IALocation;
import com.indooratlas.android.sdk.IALocationListener;
import com.indooratlas.android.sdk.IALocationManager;
import com.indooratlas.android.sdk.IALocationRequest;
import com.indooratlas.android.sdk.IARegion;
import com.indooratlas.android.sdk.resources.IAFloorPlan;
import com.indooratlas.android.sdk.resources.IALatLng;
import com.indooratlas.android.sdk.resources.IALocationListenerSupport;
import com.indooratlas.android.sdk.resources.IAResourceManager;
import com.indooratlas.android.sdk.resources.IAResult;
import com.indooratlas.android.sdk.resources.IAResultCallback;
import com.indooratlas.android.sdk.resources.IATask;
import com.squareup.picasso.Picasso;
import com.squareup.picasso.RequestCreator;
import com.squareup.picasso.Target;
import android.os.Bundle;
import android.app.Activity;
import com.lightcurb.example.R;
public class Main2Activity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
class MapsOverlayActivity extends FragmentActivity {
private static final String TAG = "IndoorAtlasExample";
private static final float HUE_IABLUE = 200.0f;
/* used to decide when bitmap should be downscaled */
private static final int MAX_DIMENSION = 2048;
private GoogleMap mMap; // Might be null if Google Play services APK is not available.
private Marker mMarker;
private GroundOverlay mGroundOverlay;
private IALocationManager mIALocationManager;
private IAResourceManager mResourceManager;
private IATask<IAFloorPlan> mFetchFloorPlanTask;
private Target mLoadTarget;
private boolean mCameraPositionNeedsUpdating;
/**
* Listener that handles location change events.
*/
private IALocationListener mListener = new IALocationListenerSupport() {
/**
* Location changed, move marker and camera position.
*/
@Override
public void onLocationChanged(IALocation location) {
Log.d(TAG, "new location received with coordinates: " + location.getLatitude()
+ "," + location.getLongitude());
if (mMap == null) {
// location received before map is initialized, ignoring update here
return;
}
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
if (mMarker == null) {
// first location, add marker
mMarker = mMap.addMarker(new MarkerOptions().position(latLng)
.icon(BitmapDescriptorFactory.defaultMarker(HUE_IABLUE)));
} else {
// move existing markers position to received location
mMarker.setPosition(latLng);
}
// our camera position needs updating if location has significantly changed
if (mCameraPositionNeedsUpdating) {
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 17.5f));
mCameraPositionNeedsUpdating = false;
}
}
};
/**
* Region listener that when:
* <ul>
* <li>region has entered; marks need to move camera and starts
* loading floor plan bitmap</li>
* <li>region has existed; clears marker</li>
* </ul>.
*/
private IARegion.Listener mRegionListener = new IARegion.Listener() {
@Override
public void onEnterRegion(IARegion region) {
if (region.getType() == IARegion.TYPE_UNKNOWN) {
Toast.makeText(MapsOverlayActivity.this, "Moved out of map",
Toast.LENGTH_LONG).show();
return;
}
// entering new region, mark need to move camera
mCameraPositionNeedsUpdating = true;
final String newId = region.getId();
Toast.makeText(MapsOverlayActivity.this, newId, Toast.LENGTH_SHORT).show();
fetchFloorPlan(newId);
}
@Override
public void onExitRegion(IARegion region) {
if (mMarker != null) {
mMarker.remove();
mMarker = null;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// prevent the screen going to sleep while app is on foreground
findViewById(android.R.id.content).setKeepScreenOn(true);
// instantiate IALocationManager and IAResourceManager
mIALocationManager = IALocationManager.create(this);
mResourceManager = IAResourceManager.create(this);
}
@Override
protected void onDestroy() {
super.onDestroy();
// remember to clean up after ourselves
mIALocationManager.destroy();
}
@Override
protected void onResume() {
super.onResume();
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
}
// start receiving location updates & monitor region changes
mIALocationManager.requestLocationUpdates(IALocationRequest.create(), mListener);
mIALocationManager.registerRegionListener(mRegionListener);
}
@Override
protected void onPause() {
super.onPause();
// unregister location & region changes
mIALocationManager.removeLocationUpdates(mListener);
mIALocationManager.registerRegionListener(mRegionListener);
}
/**
* Sets bitmap of floor plan as ground overlay on Google Maps
*/
private void setupGroundOverlay(IAFloorPlan floorPlan, Bitmap bitmap) {
if (mGroundOverlay != null) {
mGroundOverlay.remove();
}
if (mMap != null) {
BitmapDescriptor bitmapDescriptor = BitmapDescriptorFactory.fromBitmap(bitmap);
IALatLng iaLatLng = floorPlan.getCenter();
LatLng center = new LatLng(iaLatLng.latitude, iaLatLng.longitude);
GroundOverlayOptions fpOverlay = new GroundOverlayOptions()
.image(bitmapDescriptor)
.position(center, floorPlan.getWidthMeters(), floorPlan.getHeightMeters())
.bearing(floorPlan.getBearing());
mGroundOverlay = mMap.addGroundOverlay(fpOverlay);
}
}
/**
* Download floor plan using Picasso library.
*/
private void fetchFloorPlanBitmap(final IAFloorPlan floorPlan) {
final String url = floorPlan.getUrl();
if (mLoadTarget == null) {
mLoadTarget = new Target() {
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
Log.d(TAG, "onBitmap loaded with dimensions: " + bitmap.getWidth() + "x"
+ bitmap.getHeight());
setupGroundOverlay(floorPlan, bitmap);
}
@Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
// N/A
}
@Override
public void onBitmapFailed(Drawable placeHolderDraweble) {
Toast.makeText(MapsOverlayActivity.this, "Failed to load bitmap",
Toast.LENGTH_SHORT).show();
}
};
}
RequestCreator request = Picasso.with(this).load(url);
final int bitmapWidth = floorPlan.getBitmapWidth();
final int bitmapHeight = floorPlan.getBitmapHeight();
if (bitmapHeight > MAX_DIMENSION) {
request.resize(0, MAX_DIMENSION);
} else if (bitmapWidth > MAX_DIMENSION) {
request.resize(MAX_DIMENSION, 0);
}
request.into(mLoadTarget);
}
/**
* Fetches floor plan data from IndoorAtlas server.
*/
private void fetchFloorPlan(String id) {
// if there is already running task, cancel it
cancelPendingNetworkCalls();
final IATask<IAFloorPlan> task = mResourceManager.fetchFloorPlanWithId(id);
task.setCallback(new IAResultCallback<IAFloorPlan>() {
@Override
public void onResult(IAResult<IAFloorPlan> result) {
if (result.isSuccess() && result.getResult() != null) {
// retrieve bitmap for this floor plan metadata
fetchFloorPlanBitmap(result.getResult());
} else {
// ignore errors if this task was already canceled
if (!task.isCancelled()) {
// do something with error
Toast.makeText(MapsOverlayActivity.this,
"loading floor plan failed: " + result.getError(), Toast.LENGTH_LONG)
.show();
// remove current ground overlay
if (mGroundOverlay != null) {
mGroundOverlay.remove();
mGroundOverlay = null;
}
}
}
}
}, Looper.getMainLooper()); // deliver callbacks using main looper
// keep reference to task so that it can be canceled if needed
mFetchFloorPlanTask = task;
}
/**
* Helper method to cancel current task if any.
*/
private void cancelPendingNetworkCalls() {
if (mFetchFloorPlanTask != null && !mFetchFloorPlanTask.isCancelled()) {
mFetchFloorPlanTask.cancel();
}
}
}
}
}
AndroidManifest
<!-- SDK feature -->
<uses-feature
android:name="android.hardware.bluetooth_le"
android:required="true" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:name="com.Design.Design.LCExampleApplication"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="Design"
android:theme="@style/AppTheme">
<activity
android:name="com.Design.Design.activity.MainActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="Design"
android:noHistory="true"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.indooratlas.android.sdk.API_KEY"
android:value="c24c139a-0fd8-4072-b92d-440f1369a413" />
<meta-data
android:name="com.indooratlas.android.sdk.API_SECRET"
android:value="jU)0v5VVdUGfpE69DUS!zLmqVhA1wiPNymesYonp6XSArIshOSfYKbhJP9v6zIpdl8U9hOhrgQiPWYYjwSWUjgjDlbi44MNu0P52dwglirV0qTAWFfY7sj)ClhXp80i1" />
<meta-data
android:name="io.fabric.ApiKey"
android:value="309aec780906102743dd39ea4d8eddc07f46eed8" />
<activity
android:name="com.Design.Design.activity.Main2Activity"
android:label="@string/title_activity_main2"></activity>
</application>
build.gradle（Module：app）
buildscript {
repositories {
maven { url 'https://maven.fabric.io/public' }
}
dependencies {
classpath 'io.fabric.tools:gradle:1.+'
}
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'
android {
compileSdkVersion 23
defaultConfig {
applicationId "com.lightcurb.example"
minSdkVersion 18
targetSdkVersion 21
versionCode 9
versionName "1.0.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
buildToolsVersion '23.0.2'
splits {
abi {
enable true
reset()
include 'x86', 'armeabi-v7a'
universalApk true
}
}
}
repositories {
mavenCentral()
flatDir {
dirs 'libs'
}
maven { url 'https://maven.fabric.io/public' }
}
dependencies {
compile 'com.indooratlas.android:indooratlas-android-sdk:2.0.2-beta@aar'
compile 'com.radiusnetworks:AndroidIBeaconLibrary:0.7.7@aar'
compile 'com.lightcurb.sdk:LightcurbSDK:1.0.1@aar'
compile('com.crashlytics.sdk.android:crashlytics:2.5.5@aar') {
transitive = true;
}
}
repositories{
maven {
url "http://indooratlas-ltd.bintray.com/mvn-public"
}
}
MainActivity：
package com.Design.Design.activity;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.location.Criteria;
import android.location.LocationManager;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.RelativeLayout;
import android.widget.Button;
import android.widget.TextView;
import com.crashlytics.android.Crashlytics;
import com.lightcurb.example.R;
import com.lightcurb.sdk.api.LCAPIManager;
import com.lightcurb.sdk.api.request.LCAPIResponse;
import com.lightcurb.sdk.model.LCNotification;
import io.fabric.sdk.android.Fabric;
public class MainActivity extends Activity
{
private static final String TAG = MainActivity.class.getPackage() + "." + MainActivity.class.getSimpleName();
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
Fabric.with(this, new Crashlytics());
setContentView(R.layout.activity_main);
RelativeLayout StevesLayout = new RelativeLayout(this);
StevesLayout.setBackgroundColor(Color.BLUE);
RelativeLayout.LayoutParams buttonDetails = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT
);
buttonDetails.addRule(RelativeLayout.CENTER_HORIZONTAL);
buttonDetails.addRule(RelativeLayout.CENTER_VERTICAL);
Button NavButton = new Button(this);
NavButton.setText("Indoor Navigation");
NavButton.setBackgroundColor(Color.WHITE);
NavButton.setId(1);
StevesLayout.addView(NavButton,buttonDetails);
setContentView(StevesLayout);
textView = (TextView) findViewById(R.id.textView);
Button addBtn = (Button) findViewById(R.id.button);
}
@Override
protected void onStart()
{
super.onStart();
IntentFilter apiManagerFilter = new IntentFilter();
apiManagerFilter.addAction(LCAPIManager.REGISTER_FOUND_BEACONS_REQUEST_STATUS_CHANGE);
registerReceiver(apiManagerReceiver, apiManagerFilter);
}
@Override
protected void onStop()
{
super.onStop();
unregisterReceiver(apiManagerReceiver);
}
private BroadcastReceiver apiManagerReceiver = new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent)
{
Bundle extras = intent.getExtras();
String status = extras.getString("status");
LCAPIResponse response = extras.getParcelable("response");
if (status.equals("finished") && response.isSuccess())
{
LCNotification notification = extras.getParcelable("objectdata");
textView.setText(notification.getPromotion().getDescription());
}
}
};
}
答案 0 :(得分：0)
为什么要从其他软件包导入R？从您的代码中，我可以看到您从R导入com.lightcurb.example，这是一个不同的包。
因此删除，
import com.lightcurb.example.R;
来自您的进口。
请注意，您不必导入R，因为它实际上是在成功完成构建后创建的R.java文件。并且，如果您有任何错误（即R下的红色下划线），那么它表示您的项目中存在一些构建错误。如果，请检查您的xml文件，gradle文件等。