Feature: 锁屏电流信息展示 (#65)

app/proguard-rules.pro

@@ -23,6 +23,10 @@
     public void *(de.robv.android.xposed.callbacks.XC_LoadPackage$LoadPackageParam);
 }
 
+-keep class * implements de.robv.android.xposed.IXposedHookZygoteInit {
+    public void *(de.robv.android.xposed.IXposedHookZygoteInit$StartupParam);
+}
+
 -assumenosideeffects class kotlin.jvm.internal.Intrinsics {
     public static void check*(...);
     public static void throw*(...);

app/src/main/java/com/lt2333/simplicitytools/activity/SettingsActivity.kt

@@ -942,6 +942,14 @@ class SettingsActivity : MIUIActivity() {
                     SwitchV("enable_wave_charge_animation")
                 )
             )
+            add(
+                TextSummaryWithSwitchV(
+                    TextSummaryV(
+                        textId = R.string.lock_screen_current,
+                    ),
+                    SwitchV("lock_screen_current")
+                )
+            )
         }
     }
 

app/src/main/java/com/lt2333/simplicitytools/hook/MainHook.kt

@@ -4,11 +4,17 @@ import com.github.kyuubiran.ezxhelper.init.EzXHelperInit
 import com.lt2333.simplicitytools.BuildConfig
 import com.lt2333.simplicitytools.hook.app.*
 import de.robv.android.xposed.IXposedHookLoadPackage
+import de.robv.android.xposed.IXposedHookZygoteInit
 import de.robv.android.xposed.XSharedPreferences
 import de.robv.android.xposed.callbacks.XC_LoadPackage.LoadPackageParam
 
-class MainHook : IXposedHookLoadPackage {
+class MainHook : IXposedHookLoadPackage,IXposedHookZygoteInit {
     private var prefs = XSharedPreferences(BuildConfig.APPLICATION_ID, "config")
+
+    override fun initZygote(startupParam: IXposedHookZygoteInit.StartupParam) {
+        EzXHelperInit.initZygote(startupParam)
+    }
+
     override fun handleLoadPackage(lpparam: LoadPackageParam) {
         if (prefs.getBoolean("main_switch", true)) {
             EzXHelperInit.initHandleLoadPackage(lpparam)

app/src/main/java/com/lt2333/simplicitytools/hook/app/SystemUI.kt

@@ -70,6 +70,8 @@ class SystemUI : IXposedHookLoadPackage {
         HideNetworkSpeedSplitter().handleLoadPackage(lpparam)
         //Alpha充电动画
         WaveCharge().handleLoadPackage(lpparam)
+        //锁屏电流
+        LockScreenCurrent().handleLoadPackage(lpparam)
     }
 
 }

app/src/main/java/com/lt2333/simplicitytools/hook/app/systemui/LockScreenCurrent.kt

@@ -0,0 +1,140 @@
+package com.lt2333.simplicitytools.hook.app.systemui
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.graphics.Typeface
+import android.view.Gravity
+import android.view.ViewGroup
+import android.widget.TextView
+import cn.fkj233.ui.activity.dp2px
+import com.github.kyuubiran.ezxhelper.init.InitFields
+import com.lt2333.simplicitytools.R
+import com.lt2333.simplicitytools.util.findClass
+import com.lt2333.simplicitytools.util.hasEnable
+import com.lt2333.simplicitytools.util.hookAfterAllMethods
+import com.lt2333.simplicitytools.util.hookAfterMethod
+import com.microsoft.appcenter.utils.HandlerUtils.runOnUiThread
+import de.robv.android.xposed.IXposedHookLoadPackage
+import de.robv.android.xposed.callbacks.XC_LoadPackage
+import java.io.BufferedReader
+import java.io.FileReader
+import java.lang.reflect.Method
+import java.util.*
+import kotlin.math.roundToInt
+
+class LockScreenCurrent(private var battery: String = "") : IXposedHookLoadPackage {
+
+    override fun handleLoadPackage(lpparam: XC_LoadPackage.LoadPackageParam) {
+        hasEnable("lock_screen_current") {
+            val miuiPhoneStatusBarViewClass =
+                "com.android.systemui.statusbar.phone.KeyguardBottomAreaView".findClass(lpparam.classLoader)
+            miuiPhoneStatusBarViewClass.hookAfterMethod("onFinishInflate") { param ->
+                val viewGroup = param.thisObject as ViewGroup
+                battery = getSystemBattery(viewGroup.context)
+                val textView = TextView(viewGroup.context).also {
+                    it.typeface = Typeface.defaultFromStyle(Typeface.BOLD)
+                    it.textSize = dp2px(viewGroup.context, 5f).toFloat()
+                }
+                textView.gravity = Gravity.CENTER or Gravity.BOTTOM
+                textView.setPadding(0, 0, 0, dp2px(viewGroup.context, 5f))
+                Timer().schedule(object : TimerTask() {
+                    override fun run() {
+                        runOnUiThread {
+                            textView.text = getCurrent()
+                        }
+                    }
+
+                }, 0, 1000)
+                val darkIconDispatcherClass =
+                    "com.android.systemui.plugins.DarkIconDispatcher".findClass(lpparam.classLoader)
+                darkIconDispatcherClass.hookAfterAllMethods("getTint") {
+                    val areaTint = it.args[2] as Int
+                    textView.setTextColor(areaTint)
+                }
+                viewGroup.addView(textView)
+            }
+        }
+    }
+
+    /**
+     * 原始代码来自 CSDN
+     * https://blog.csdn.net/zhangyongfeiyong/article/details/53641809
+     */
+    @SuppressLint("PrivateApi")
+    private fun getCurrent(): String {
+        var result = ""
+        try {
+            val systemProperties = Class.forName("android.os.SystemProperties")
+            val get = systemProperties.getDeclaredMethod("get", String::class.java) as Method
+            val platName = get.invoke(null, "ro.hardware") as String
+            if (platName.startsWith("mt") || platName.startsWith("MT")) {
+                val filePath =
+                    "/sys/class/power_supply/battery/device/FG_Battery_CurrentConsumption"
+                result = "${(getMeanCurrentVal(filePath, 5, 0) / 1000.0f).roundToInt()} mA"
+            } else if (platName.startsWith("qcom")) {
+                val filePath = "/sys/class/power_supply/battery/current_now"
+                val current = (getMeanCurrentVal(filePath, 5, 0) / 1000.0f).roundToInt()
+                result = if (current < 0) {
+                    "${InitFields.moduleRes.getString(R.string.current_current)}$current mA，${InitFields.moduleRes.getString(R.string.charging)}$battery%".replace("-", "")
+                } else {
+                    "${InitFields.moduleRes.getString(R.string.current_current)}-$current mA"
+                }
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        return result
+    }
+
+    /**
+     * 获取平均电流值
+     * 获取 filePath 文件 totalCount 次数的平均值，每次采样间隔 intervalMs 时间
+     */
+    private fun getMeanCurrentVal(filePath: String, totalCount: Int, intervalMs: Int): Float {
+        var meanVal = 0.0f
+        if (totalCount <= 0) {
+            return 0.0f
+        }
+        for (i in 0 until totalCount) {
+            try {
+                val f: Float = readFile(filePath, 0).toFloat()
+                meanVal += f / totalCount
+            } catch (e: Exception) {
+                e.printStackTrace()
+            }
+            if (intervalMs <= 0) {
+                continue
+            }
+            try {
+                Thread.sleep(intervalMs.toLong())
+            } catch (e: Exception) {
+                e.printStackTrace()
+            }
+        }
+        return meanVal
+    }
+
+    private fun readFile(path: String, defaultValue: Int): Int {
+        try {
+            val bufferedReader = BufferedReader(FileReader(path))
+            val i: Int = bufferedReader.readLine().toInt(10)
+            bufferedReader.close()
+            return i
+        } catch (localException: java.lang.Exception) {
+        }
+        return defaultValue
+    }
+
+    private fun getSystemBattery(context: Context): String {
+        val batteryInfoIntent: Intent? = context.applicationContext.registerReceiver(
+            null,
+            IntentFilter(Intent.ACTION_BATTERY_CHANGED)
+        )
+        val level: Int = batteryInfoIntent!!.getIntExtra("level", 0)
+        val batterySum = batteryInfoIntent.getIntExtra("scale", 100)
+        val percentBattery = 100 * level / batterySum
+        return percentBattery.toString()
+    }
+}

app/src/main/res/values-zh-rCN/strings.xml

@@ -152,4 +152,7 @@
     <string name="current">当前值：</string>
     <string name="participate_in_translation">参与翻译</string>
     <string name="participate_in_translation_summary">帮助我们将应用翻译成您的语言</string>
+    <string name="lock_screen_current">锁屏显示电流信息</string>
+    <string name="current_current">当前电流：</string>
+    <string name="charging">充电中：</string>
 </resources>

app/src/main/res/values-zh-rHK/strings.xml

@@ -152,4 +152,7 @@
     <string name="current">當前值：</string>
     <string name="participate_in_translation">參與翻譯</string>
     <string name="participate_in_translation_summary">幫助我們將這個APP翻譯成您的語言</string>
+    <string name="lock_screen_current">锁屏显示电流信息</string>
+    <string name="current_current">當前電流：</string>
+    <string name="charging">充電中：</string>
 </resources>

app/src/main/res/values-zh-rTW/strings.xml

@@ -152,4 +152,7 @@
     <string name="current">當前值：</string>
     <string name="participate_in_translation">參與評估</string>
     <string name="participate_in_translation_summary">幫助我們將這個APP翻譯成您的語言</string>
+    <string name="lock_screen_current">锁屏显示电流信息</string>
+    <string name="current_current">當前電流：</string>
+    <string name="charging">充電中：</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -156,4 +156,7 @@
     <string name="current">Current:</string>
     <string name="participate_in_translation">Participate in translation</string>
     <string name="participate_in_translation_summary">Help us translate the app into your language</string>
+    <string name="lock_screen_current">Lock screen displays current information</string>
+    <string name="current_current">current:</string>
+    <string name="charging">charging:</string>
 </resources>