desc:首页增加mHasCameraData、mHasSensorData分别判断是否有摄像头数据或传感器数据

app/src/main/java/com/yinuo/safetywatcher/watcher/base/BaseActivity.kt

@@ -75,6 +75,11 @@ abstract class BaseActivity : AppCompatActivity() {
         loadingDialog!!.show(supportFragmentManager, "loading")
     }
 
+    fun isLoadingShowing(): Boolean {
+        val fragment = supportFragmentManager.findFragmentByTag("loading")
+        return fragment?.isVisible ?: false
+    }
+
     fun closeLoadingDialog() {
         loadingDialog?.dismiss()
         loadingDialog = null

app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt

@@ -18,6 +18,9 @@ const val DELAY_TIME_OPEN_CAMERA = 10
 //检测重连摄像头延时
 const val DELAY_TIME_CHECK_CAMERA = 5
 
+//检测重连传感器延时
+const val DELAY_TIME_CHECK_SENSOR = 5
+
 const val NAMESPACE_ANDROID = "http://schemas.android.com/apk/res/android"
 
 // 云同步时，20条数据一上传

app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtils.kt

@@ -4,6 +4,7 @@ import android.os.Handler
 import android.os.Looper
 import com.common.commonlib.db.DBUtils
 import com.common.commonlib.db.entity.GasType
+import com.yinuo.library.vlc.TxtOverlay
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
@@ -35,6 +36,9 @@ object GasUtils {
                         val gasUnit = it[2]
                         val gasValue: Double = (it[4] * 256 + it[5]) / 100.00
                         setFlag(0, gasName, "/dev/tyyS0")
+
+                        // TODO
+                        TxtOverlay.setShowTip("")
                     }
                 }
             }

app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt

@@ -5,20 +5,26 @@ import android.os.Build
 import android.os.Process
 import android.view.View
 import androidx.annotation.RequiresApi
+import androidx.lifecycle.lifecycleScope
 import com.common.commonlib.utils.NetworkHelper
 import com.yinuo.library.vlc.IFrameCallBack
 import com.yinuo.library.vlc.RtspSurfaceRender2
+import com.yinuo.library.vlc.TxtOverlay
 import com.yinuo.library.vlc.utils.LogUtils
 import com.yinuo.safetywatcher.R
 import com.yinuo.safetywatcher.databinding.ActivityHomeBinding
 import com.yinuo.safetywatcher.watcher.base.NoOptionsActivity
 import com.yinuo.safetywatcher.watcher.constant.CAMERA_URL
 import com.yinuo.safetywatcher.watcher.constant.DELAY_TIME_CHECK_CAMERA
+import com.yinuo.safetywatcher.watcher.constant.DELAY_TIME_CHECK_SENSOR
 import com.yinuo.safetywatcher.watcher.constant.DELAY_TIME_OPEN_CAMERA
+import com.yinuo.safetywatcher.watcher.port.GasUtils
 import com.yinuo.safetywatcher.watcher.services.HeartbeatService
 import com.yinuo.safetywatcher.watcher.utils.BatteryHelper
 import com.yinuo.safetywatcher.watcher.utils.SimHelper
 import com.yinuo.safetywatcher.watcher.utils.WifiHelper
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 
 class HomeActivity : NoOptionsActivity() {
 
@@ -28,6 +34,9 @@ class HomeActivity : NoOptionsActivity() {
 
     private var mRender: RtspSurfaceRender2? = null
 
+    private var mHasCameraData = false
+    private var mHasSensorData = false
+
     override val isHome: Boolean
         get() = true
 
@@ -44,6 +53,7 @@ class HomeActivity : NoOptionsActivity() {
         initTopbarHelper()
         HeartbeatService.actionStart(this@HomeActivity)
         setForCamera()
+        setForSensor()
         mBinding.apply {
             itemSetting.setOnClickListener {
                 startActivity(Intent(this@HomeActivity, SettingActivity::class.java))
@@ -70,36 +80,101 @@ class HomeActivity : NoOptionsActivity() {
         }
     }
 
+    /**
+     * 设置摄像头
+     */
     private fun setForCamera() {
         mRender = RtspSurfaceRender2(mBinding.surface)
         mRender?.setRtspUrl(CAMERA_URL)
         mRender?.setFrameCallBack(object : IFrameCallBack {
             override fun onFrame() {
+                mHasCameraData = true
+                changeViewStatus()
                 closeLoadingDialog()
                 watchCamera(DELAY_TIME_CHECK_CAMERA)
             }
         })
         // 第一次很慢，所以10秒
         watchCamera(DELAY_TIME_OPEN_CAMERA)
-        showLoadingDialog(R.string.connecting_camera, false)
+        showLoadingDialog(R.string.connecting_camera)
+    }
+
+    /**
+     * 改变View状态
+     */
+    private fun changeViewStatus() {
+        lifecycleScope.launch(Dispatchers.Main) {
+            //mHasSensorData = true
+            mBinding.errorView.visibility =
+                if (!mHasCameraData) View.VISIBLE else View.GONE
+            val errorRes = if (!mHasCameraData && !mHasSensorData) R.drawable.ic_nosingal else R.drawable.ic_icon
+            mBinding.errorView.setImageResource(errorRes)
+
+            // tipView
+            mBinding.tipView.visibility = if (!mHasCameraData && mHasSensorData) View.VISIBLE else View.GONE
+            mBinding.tipView.setImageBitmap(TxtOverlay.getOverlayBitmap())
+        }
     }
 
+    /**
+     * 重启摄像头Runnable
+     */
     private val reStartCamera: Runnable = Runnable {
+        LogUtils.w("reStartCamera Runnable start")
+        mHasCameraData = false
+        changeViewStatus()
         if (NetworkHelper.isNetworkConnect(this@HomeActivity)) {
-            LogUtils.w("reStartCamera Runnable start")
-            showLoadingDialog(R.string.connecting_camera, false)
+            if (!isLoadingShowing() && !mHasSensorData) {
+                showLoadingDialog(R.string.connecting_camera)
+            }
             mRender?.reStart()
             watchCamera(DELAY_TIME_OPEN_CAMERA)
-        }else{
+        } else {
             watchCamera(DELAY_TIME_CHECK_CAMERA)
         }
     }
 
+    /**
+     * 监视摄像头
+     */
     private fun watchCamera(time: Int) {
         mBinding.root.removeCallbacks(reStartCamera)
         mBinding.root.postDelayed(reStartCamera, (time * 1000).toLong())
     }
 
+
+    // 设置传感器
+    private fun setForSensor() {
+        TxtOverlay.setTipChangeListener {
+            // 有传感器数据回调
+            mHasSensorData = true
+            closeLoadingDialog()
+            changeViewStatus()
+            watchSensor(DELAY_TIME_CHECK_SENSOR)
+        }
+        watchSensor(DELAY_TIME_CHECK_SENSOR)
+        GasUtils.initPort()
+    }
+
+    /**
+     * 监视传感器
+     */
+    private fun watchSensor(delayTime: Int) {
+        mBinding.root.removeCallbacks(watchSensorRunnable)
+        mBinding.root.postDelayed(watchSensorRunnable, (delayTime * 1000).toLong())
+    }
+
+    /**
+     * 监视传感器执行Runnable
+     */
+    private val watchSensorRunnable: Runnable = Runnable {
+        LogUtils.w("watchSensorRunnable start")
+        mHasSensorData = false
+        changeViewStatus()
+        GasUtils.initPort()
+        watchSensor(DELAY_TIME_CHECK_SENSOR)
+    }
+
     private fun initTopbarHelper() {
         BatteryHelper.init(this@HomeActivity)
         WifiHelper.init(this@HomeActivity)

app/src/main/res/layout/activity_home.xml

@@ -8,6 +8,20 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
+    <ImageView
+        android:id="@+id/error_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:scaleType="fitXY"
+        android:src="@drawable/ic_nosingal"/>
+
+    <ImageView
+        android:id="@+id/tip_View"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/_100dp"
+        android:layout_marginStart="@dimen/_100dp"/>
+
     <LinearLayout
         android:id="@+id/setting_area"
         android:layout_width="@dimen/_288dp"

library-vlc/src/main/java/com/yinuo/library/vlc/TxtOverlay.kt

@@ -10,6 +10,9 @@ import java.text.SimpleDateFormat
  * Created by John on 2017/2/23.
  */
 object TxtOverlay {
+    // 提示变化的监听
+    private var mTipChangeListener: (() -> Unit)? = null;
+
     // 上一次展示的提示文字
     private var mLastShowTip = ""
 
@@ -20,6 +23,7 @@ object TxtOverlay {
     fun setShowTip(string: String) {
         mToDoShowTip = string
         buildOverlayBitmap()
+        mTipChangeListener?.invoke()
     }
 
     // 上一次展示的时间
@@ -41,6 +45,8 @@ object TxtOverlay {
             // 记录更新时间和上一次的文字
             lastTipUpdateTime = currentTimeMillis
             mLastShowTip = mToDoShowTip
+            // 回收内存
+            bmp?.recycle()
             // 文字转bitmap
             bmp = YUVUtils.generateBitmap(
                 dateFormat.format(lastTipUpdateTime) + "@" + mToDoShowTip, 40, Color.WHITE
@@ -54,4 +60,8 @@ object TxtOverlay {
     fun getOverlayBitmap(): Bitmap? {
         return bmp;
     }
+
+    fun setTipChangeListener(onChange: () -> Unit) {
+        mTipChangeListener = onChange
+    }
 }