package com.yhao.floatwindow.utils;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import com.yhao.floatwindow.interfaces.ISensorRotateChanged;
import java.lang.ref.WeakReference;
/**
* @Copyright © 2019 sanbo Inc. All rights reserved.
* @Description: 方向感应
* @Version: 1.0
* @Create: 2019-10-16 18:10:38
* @author: sanbo
*/
public class RotateUtil {
private SensorManager mSenserManger = null;
private OrientationSensorListener mSensorListener = null;
private Sensor mSensor = null;
// 多次初始化
private boolean isInit = false;
// 是否中断, 默认不中断
private boolean isInterrupt = false;
// 默认是竖屏
private boolean isLandscape = false;
// 记录点击全屏后屏幕朝向是否改变，默认会自动切换
private boolean isChangeOrientation = true;
// 为了给页面传递方向改变
private WeakReference<Activity> mActivityRef = null;
// 变动时回调
private ISensorRotateChanged mSensorRotateChanged = null;
private RotateUtil() {
}
public static RotateUtil getInstance() {
return HOLDER.INSTANCE;
}
public void start(Activity activity) {
initSensorManager(activity.getApplicationContext());
if (!isInit && mSenserManger != null) {
mSenserManger.registerListener(mSensorListener, mSensor, SensorManager.SENSOR_DELAY_UI);
}
if (activity != null || mActivityRef.get() == null) {
mActivityRef = new WeakReference<Activity>(activity);
}
}
public void stop() {
if (isInit && mSenserManger != null) {
mSenserManger.unregisterListener(mSensorListener);
}
if (mActivityRef != null || mActivityRef.get() != null) {
mActivityRef = null;
}
}
/**
* 初始化传感器
*
* @param context
*/
private void initSensorManager(Context context) {
// 初始化重力感应器
if (mSenserManger == null) {
mSenserManger = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
}
if (mSensor == null) {
mSensor = mSenserManger.getDefaultSensor(Sensor.TYPE_GRAVITY);
}
if (mSensorListener == null) {
mSensorListener = new OrientationSensorListener();
}
}
/**
* 设置回调
*
* @param sensorRotateChanged
*/
public void setRotateChanged(ISensorRotateChanged sensorRotateChanged) {
if (sensorRotateChanged != null) {
mSensorRotateChanged = sensorRotateChanged;
}
}
/**
* 当前屏幕朝向是否横屏
*
* @param orientation
* @return
*/
private boolean screenIsLandscape(int orientation) {
return ((orientation > 45 && orientation <= 135) || (orientation > 225 && orientation <= 315));
}
/**
* 当前屏幕朝向是否竖屏
*
* @param orientation
* @return
*/
private boolean screenIsPortrait(int orientation) {
return (((orientation > 315 && orientation <= 360) || (orientation >= 0 && orientation <= 45))
|| (orientation > 135 && orientation <= 225));
}
private static class HOLDER {
private static RotateUtil INSTANCE = new RotateUtil();
}
/**
* 重力感应监听者
*/
public class OrientationSensorListener implements SensorEventListener {
public static final int ORIENTATION_UNKNOWN = -1;
private static final int DATA_X = 0;
private static final int DATA_Y = 1;
private static final int DATA_Z = 2;
//上次是否竖屏
private boolean isLastLandscape = false;
@Override
public void onSensorChanged(SensorEvent event) {
float[] values = event.values;
int orientation = ORIENTATION_UNKNOWN;
float X = -values[DATA_X];
float Y = -values[DATA_Y];
float Z = -values[DATA_Z];
float magnitude = X * X + Y * Y;
// Don't trust the angle if the magnitude is small compared to the y
// value
if (magnitude * 4 >= Z * Z) {
// 屏幕旋转时
float OneEightyOverPi = 57.29577957855f;
float angle = (float) Math.atan2(-Y, X) * OneEightyOverPi;
orientation = 90 - Math.round(angle);
// normalize to 0 - 359 range
while (orientation >= 360) {
orientation -= 360;
}
while (orientation < 0) {
orientation += 360;
}
}
//竖屏
if (screenIsPortrait(orientation)) {
//上次非竖屏,屏幕旋转
if (!isLastLandscape) {
isChangeOrientation = true;
if (FwContent.isDebug) {
L.v("onSensorChanged: 横屏 ----> 竖屏");
}
} else {
isChangeOrientation = false;
if (FwContent.isDebug) {
L.v("onSensorChanged: 竖屏 ----> 竖屏");
}
}
isLastLandscape = true;
// 横屏处理
} else if (screenIsLandscape(orientation)) {
//上次竖屏,屏幕旋转
if (isLastLandscape) {
isChangeOrientation = true;
if (FwContent.isDebug) {
L.v("onSensorChanged: 竖屏 ---->横屏");
}
} else {
isChangeOrientation = false;
if (FwContent.isDebug) {
L.v("onSensorChanged: 横屏 ----> 横屏");
}
}
isLastLandscape = false;
}
// 页面变化，回调
if (isChangeOrientation) {
mSensorRotateChanged.onRotateChanged();
isChangeOrientation = false;
}
// 不拦截时，对应页面也可以收到页面的改变
if (!isInterrupt && mActivityRef != null && mActivityRef.get() != null) {
// 根据手机屏幕的朝向角度，来设置内容的横竖屏，并且记录状态
int requestedOrientation = 0;
if (orientation > 45 && orientation < 135) {
requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
} else if (orientation > 135 && orientation < 225) {
requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;
} else if (orientation > 225 && orientation < 315) {
requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
} else if ((orientation > 315 && orientation < 360) || (orientation > 0 && orientation < 45)) {
requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
}
// 接收重力感应监听的结果，来改变屏幕朝向
mActivityRef.get().setRequestedOrientation(requestedOrientation);
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
}
}
