package com.d1ev.touch.App.helper;import android.app.Activity;import android.content.pm.ActivityInfo;import android.util.Log;import android.view.OrientationEventListener;import java.lang.ref.WeakReference;/** * Created by Administrator on 2016/12/3 0003. * 監聽重力系統傳感器的變化，為Vr視頻播放器而定制 */public class MySensorHelper {  private static final String TAG = MySensorHelper.class.getSimpleName();  private OrientationEventListener mLandOrientationListener;  private OrientationEventListener mPortOrientationListener;  private WeakReference<Activity> mActivityWeakRef;  private boolean isPortLock = false;  private boolean isLandLock=false;  public MySensorHelper(final Activity activity) {    this.mActivityWeakRef = new WeakReference(activity);    this.mLandOrientationListener = new OrientationEventListener(activity, 3) {      public void onOrientationChanged(int orientation) {        Log.d(MySensorHelper.TAG, "mLandOrientationListener");        if(orientation < 100 && orientation > 80 || orientation < 280 && orientation > 260) {          Log.e(MySensorHelper.TAG, "轉到了橫屏");          if(!MySensorHelper.this.isLandLock) {            Activity mActivity = (Activity)MySensorHelper.this.mActivityWeakRef.get();            if(mActivity != null) {              Log.e(MySensorHelper.TAG, "轉到了橫屏##################");              mActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);              isLandLock=true;              isPortLock=false;            }          }        }      }    };    this.mPortOrientationListener = new OrientationEventListener(activity, 3) {      public void onOrientationChanged(int orientation) {        Log.w(MySensorHelper.TAG, "mPortOrientationListener");        if(orientation < 10 || orientation > 350 || orientation < 190 && orientation > 170) {          Log.e(MySensorHelper.TAG, "轉到了豎屏");          if(!MySensorHelper.this.isPortLock) {            Activity mActivity = (Activity)MySensorHelper.this.mActivityWeakRef.get();            if(mActivity != null) {              Log.e(MySensorHelper.TAG, "轉到了豎屏!!!!!!!!!!!!!!!!!!!!!!");              mActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);              isPortLock=true;              isLandLock=false;            }          }        }      }    };   //this.disable();  }  //禁用切換屏幕的開關  public void disable() {    Log.e(TAG, "disable");    this.mPortOrientationListener.disable();    this.mLandOrientationListener.disable();  }  //開啟橫豎屏切換的開關  public void enable(){    this.mPortOrientationListener.enable();    this.mLandOrientationListener.enable();  }  //設置豎屏是否上鎖，true鎖定屏幕,fanle解鎖  public void setPortLock(boolean lockFlag) {    this.isPortLock = lockFlag;  }  //設置橫屏是否鎖定，true鎖定，false解鎖  public void setLandLock(boolean isLandLock){    this.isLandLock=isLandLock;  }}

helper.disable();