Android 360全景开发（PanoramaGL）

最近公司要求做室内的360全景开发，在网上搜了些资料，基本上都是给的官网链接，自己研究了下，其实把这个做好真挺难搞，下面主要根据官网的PanoramaGL来作介绍：
     
  1，下载一个PanoramaGL的jar包，http://code.google.com/p/panoramagl-android/downloads/detail?name=PanoramaGL_0.2-beta.jar，然后导入到项目中。
 
  2，继承PLView,获取当前根内容视图，将其添加到360视图中，然后在加载全景图像
     public class MainActivity extends PLView {
	/* 下拉控件 */
	private Spinner mPanoramaTypeSpinner;
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		this.setListener(new PLViewListener() {
			@Override
			public void onDidClickHotspot(PLIView view, PLIHotspot hotspot,
					CGPoint screenPoint, PLPosition scene3DPoint) {
				Toast.makeText(
						view.getActivity().getApplicationContext(),
						String.format("You select the hotspot with ID %d",
								hotspot.getIdentifier()), Toast.LENGTH_SHORT)
						.show();
			}

		});
	}

	/**
	 * @param contentView表示当前根内容视图
	 * @return activity的根内容视图
	 */
	@Override
	protected View onContentViewCreated(View contentView) {
		// 加载布局
		ViewGroup mainView = (ViewGroup) this.getLayoutInflater().inflate(
				R.layout.activity_main, null);
		// 添加360视图
		mainView.addView(contentView, 0);
		// 下拉列表控制
		mPanoramaTypeSpinner = (Spinner) mainView
				.findViewById(R.id.spinner_panorama_type);
		ArrayAdapter adapter = ArrayAdapter.createFromResource(this,
				R.array.panorama_types, android.R.layout.simple_spinner_item);
		adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		mPanoramaTypeSpinner.setAdapter(adapter);
		mPanoramaTypeSpinner
				.setOnItemSelectedListener(new OnItemSelectedListener() {
					@Override
					public void onItemSelected(AdapterView parentView,
							View selectedItemView, int position, long id) {
						loadPanoramaFromJSON(position);
					}

					@Override
					public void onNothingSelected(AdapterView parentView) {
					}
				});

		return super.onContentViewCreated(mainView);
	}

	/**
	 * 加载全景图像
	 * 
	 * @param index表示的位置
	 *            0 = 立方体, 1 =球体 , 2 = 球体, 3 = 圆柱体
	 */
	@SuppressWarnings("unused")
	private void loadPanorama(int index) {
		try {
			Context context = this.getApplicationContext();
			PLIPanorama panorama = null;
			// 锁定全景视图
			this.setLocked(true);
			// 全景全景视图
			switch (index) {
			// 立方体全景 (supports up 1024x1024 image per face)
			case 0:
				PLCubicPanorama cubicPanorama = new PLCubicPanorama();
				cubicPanorama.setImage(
						new PLImage(PLUtils.getBitmap(context,
								R.raw.panorama_f1), false),
						PLCubeFaceOrientation.PLCubeFaceOrientationFront);
				cubicPanorama.setImage(
						new PLImage(PLUtils.getBitmap(context,
								R.raw.panorama_b1), false),
						PLCubeFaceOrientation.PLCubeFaceOrientationBack);
				cubicPanorama.setImage(
						new PLImage(PLUtils.getBitmap(context,
								R.raw.panorama_l1), false),
						PLCubeFaceOrientation.PLCubeFaceOrientationLeft);
				cubicPanorama.setImage(
						new PLImage(PLUtils.getBitmap(context,
								R.raw.panorama_r1), false),
						PLCubeFaceOrientation.PLCubeFaceOrientationRight);
				cubicPanorama.setImage(
						new PLImage(PLUtils.getBitmap(context,
								R.raw.panorama_u1), false),
						PLCubeFaceOrientation.PLCubeFaceOrientationUp);
				cubicPanorama.setImage(
						new PLImage(PLUtils.getBitmap(context,
								R.raw.panorama_d1), false),
						PLCubeFaceOrientation.PLCubeFaceOrientationDown);
				panorama = cubicPanorama;
				break;
			// 球形全景 panorama (supports up 2048x1024 image)
			case 1:
				panorama = new PLSpherical2Panorama();
				((PLSpherical2Panorama) panorama).setImage(new PLImage(PLUtils
						.getBitmap(context, R.raw.panorama2), false));
				break;
			// 球形全景 (supports up 1024x512 image)
			case 2:
				panorama = new PLSphericalPanorama();
				((PLSphericalPanorama) panorama).setImage(new PLImage(PLUtils
						.getBitmap(context, R.raw.panorama), false));
				break;
			// 圆柱形全景 (supports up 1024x1024 image)
			case 3:
				PLCylindricalPanorama cylindricalPanorama = new PLCylindricalPanorama();
				cylindricalPanorama.setHeight(3.0f);
				cylindricalPanorama.getCamera().setPitchRange(0.0f, 0.0f);
				cylindricalPanorama.setImage(new PLImage(PLUtils.getBitmap(
						context, R.raw.panorama), false));
				panorama = cylindricalPanorama;
				break;
			default:
				break;
			}
			if (panorama != null) {
				// 设置摄像机的旋转角度
				panorama.getCamera().lookAt(0.0f, 170.0f);
				// 添加一个热点
				panorama.addHotspot(new PLHotspot(1, new PLImage(PLUtils
						.getBitmap(context, R.raw.hotspot), false), 0.0f,
						170.0f, 0.05f, 0.05f));
				// 重置视图
				this.reset();
				// 加载全景图
				this.startTransition(new PLTransitionBlend(2.0f), panorama); // 或者
																				// this.setPanorama(panorama);
			}
			// 开启全景视图
			this.setLocked(false);
		} catch (Throwable e) {
			Toast.makeText(this.getApplicationContext(), "Error: " + e,
					Toast.LENGTH_SHORT).show();
		}
	}

	/**
	 * 负载全景图像使用JSON协议
	 * 
	 * @param index表示的位置
	 *            0 = 立方体, 1 =球柱 , 2 = 球体, 3 = 圆柱体
	 */
	private void loadPanoramaFromJSON(int index) {
		try {
			PLILoader loader = null;
			switch (index) {
			case 0:
				loader = new PLJSONLoader("res://raw/json_cubic");
				break;
			case 1:
				loader = new PLJSONLoader("res://raw/json_spherical2");
				break;
			case 2:
				loader = new PLJSONLoader("res://raw/json_spherical");
				break;
			case 3:
				loader = new PLJSONLoader("res://raw/json_cylindrical");
				break;
			default:
				break;
			}
			if (loader != null)
				this.load(loader, true, new PLTransitionBlend(2.0f));
		} catch (Throwable e) {
			Toast.makeText(this.getApplicationContext(), "Error: " + e,
					Toast.LENGTH_SHORT).show();
		}
	}
        
   其实加载主要用得的还是json协议，Android客户端只是负责加载360全景图像，具体的大家可以下一个例子来看下，具体的可以留言问我，当然我可能也有许多不懂的地方，我也是在研究，大家互相学习进步。