Android google VR全景图导航

       VR导航我们接入的是google vr的,其官方网站为https://github.com/googlevr/gvr-android-sdk,其VR素材地址为http://p0w477exg.bkt.clouddn.com/andes.jpg,下面看下集成的写法:

一.所演示的样列为android studio新建一个空activity的只含有activity_main.xml布局文件的工程

1.工程build.gradle里面集成VR全景视图所依赖的包

//    VR所依赖的包compile 'com.google.vr:sdk-panowidget:1.30.0'

2.AndroidManifest.xml清单文件里面集成赋予网络权限,内存控制

//赋予网络权限<uses-permission android:name="android.permission.INTERNET"/>        

        android:largeHeap="true"//内存控制

我的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"package="palmartourism.iwiteks.www.hiqdn">//赋予网络权限<uses-permission android:name="android.permission.INTERNET"/><applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher"android:label="@string/app_name"android:roundIcon="@mipmap/ic_launcher_round"android:supportsRtl="true"android:theme="@style/Theme.AppCompat.Light.NoActionBar"><activity android:name=".MainActivity"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity></application></manifest>

3.activity_main.xml加入

<com.google.vr.sdk.widgets.pano.VrPanoramaViewandroid:layout_width="match_parent"android:layout_height="match_parent"android:id="@+id/vr_pv" ></com.google.vr.sdk.widgets.pano.VrPanoramaView>

4.素材放置于src/main/assets/andes.jpg

5.MainActivity的写法

package palmartourism.iwiteks.www.hiqdn;import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;import com.google.vr.sdk.widgets.pano.VrPanoramaEventListener;
import com.google.vr.sdk.widgets.pano.VrPanoramaView;import java.io.IOException;
import java.io.InputStream;import palmartourism.iwiteks.www.util.StatusBarUtil;/*** Created by spirits on 2018/1/16.*/public class MainActivity extends AppCompatActivity {private VrPanoramaView vrPanoramaView;private ImageTask imageTask;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);StatusBarUtil.transparentStatusBar(this);setContentView(R.layout.activity_vr);//全景图片的浏览功能//步骤一。下载github上google开源 vr-sdk//1.1.导入到我们的工作空间 common,commonwidget  panowidget//1.2.依赖到我们的项目中//1.3.依赖sdk中找不到的api//1.4.准备一些测试素材 放置在assets目录下面 例:assets/a.jpg//1.5.开启内存设置  android:largeHeap="true"尽可能使应用使用最大内存//步骤二。将全景图片加载到内存中，再显示在控件//2.1.布局全景图片显示控件vrPanoramaView = (VrPanoramaView) findViewById(R.id.vr_pv);//删除不需要连接 信息按钮禁掉vrPanoramaView.setInfoButtonEnabled(false);//隐藏全屏按钮vrPanoramaView.setFullscreenButtonEnabled(false);//设置隐藏立体模型的按钮vrPanoramaView.setStereoModeButtonEnabled(false);//开启手触模式vrPanoramaView.setTouchTrackingEnabled(true);//眼镜模式按钮禁掉vrPanoramaView.setStereoModeButtonEnabled(false);//2.2.所有的图片在内存表示成BitmapimageTask = new ImageTask();imageTask.execute();//vrPanoramaView.loadImageFromBitmap(bitmap);}//2.3.AsyncTask异步加载private class ImageTask extends AsyncTask<Void, Void, Bitmap> {@Overrideprotected Bitmap doInBackground(Void... params) {try {InputStream inputStream = getAssets().open("andes.jpg");//2.4.使用BitmapFactory 可以sd ,byte[] inputstream-->BitmapBitmap bitmap = BitmapFactory.decodeStream(inputStream);return bitmap;} catch (IOException e) {e.printStackTrace();}return null;}@Overrideprotected void onPostExecute(Bitmap bitmap) {super.onPostExecute(bitmap);if (bitmap != null) {//loadImageFromBitmap加载bitmap到显示控件 参1.bitmap 参2 显示参数的封装VrPanoramaView.Options option = new VrPanoramaView.Options();//立体图片:上半张显示在左眼，下半张显示在右眼//TYPE_STEREO_OVER_UNDER  TYPE_MONOoption.inputType = VrPanoramaView.Options.TYPE_MONO;VrPanoramaEventListener listener=new VrPanoramaEventListener(){@Overridepublic void onLoadSuccess() {super.onLoadSuccess();//成功的情况提示下现在要进行全景图片的展示
//                        Toast.makeText(MainActivity.this, "进入vr图片", Toast.LENGTH_SHORT).show();}@Overridepublic void onLoadError(String errorMessage) {super.onLoadError(errorMessage);//处理加载失败的情况Toast.makeText(MainActivity .this, "E:"+errorMessage, Toast.LENGTH_SHORT).show();}};//2.5.增加加载出错的业务逻辑处理vrPanoramaView.setEventListener(listener);//2.6.全屏展示
//                vrPanoramaView.setDisplayMode(VrWidgetView.DisplayMode.FULLSCREEN_MONO);//2.4.加载bitmap到控件上显示vrPanoramaView.loadImageFromBitmap(bitmap, option);}}}//步骤三。优化程序细节 ，页面退到后台,暂停显示 ，页面显示在屏幕 恢复显示。销毁页面,释放全景图片//3.1 页面退到后台,暂停显示@Overrideprotected void onPause() {super.onPause();if(vrPanoramaView!=null){vrPanoramaView.pauseRendering();}}//3.2 页面显示在屏幕 恢复显示@Overrideprotected void onResume() {super.onResume();if(vrPanoramaView!=null){vrPanoramaView.resumeRendering();}}//3.3.销毁页面,释放全景图片@Overrideprotected void onDestroy() {super.onDestroy();if (vrPanoramaView != null) {vrPanoramaView.shutdown();}if (imageTask != null && !imageTask.isCancelled()) {imageTask.cancel(true);imageTask = null;}}
}