desc:背光调节

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

@@ -25,9 +25,11 @@ class LightSettingActivity : NoOptionsActivity() {
     override fun initView() {
         val initLight = getScreenBrightness()
         mBinding.sbLight.progress = initLight
+        mBinding.tvLight.text = getShowPercent(initLight)
         mBinding.sbLight.setOnSeekBarChangeListener(object : OnSeekBarChangeListener {
             override fun onProgressChanged(p0: SeekBar?, p1: Int, p2: Boolean) {
                 setWindowBrightness(p1)
+                mBinding.tvLight.text = getShowPercent(p1)
             }
 
             override fun onStartTrackingTouch(p0: SeekBar?) {
@@ -45,6 +47,11 @@ class LightSettingActivity : NoOptionsActivity() {
         }
     }
 
+    private fun getShowPercent(initLight: Int): CharSequence? {
+        val percent = (initLight/255f * 100).toInt()
+        return "$percent%"
+    }
+
 
     /**
      * 获取系统屏幕亮度(0-255)

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

@@ -29,7 +29,7 @@
             android:layout_height="wrap_content"
             android:layout_alignParentEnd="true"
             android:layout_marginTop="@dimen/_185dp"
-            android:layout_marginEnd="@dimen/_132dp"
+            android:layout_marginEnd="@dimen/_121dp"
             android:text="55%"
             android:textColor="@color/white"
             android:textSize="@dimen/_36dp" />