feat: 添加PopupWindow和LifecycleOwner扩展

lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/ktx/LifecycleOwnerKtx.kt

@@ -0,0 +1,27 @@
+package com.quyunshuo.androidbaseframemvvm.base.ktx
+
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LiveData
+
+/**
+ * 对LiveData订阅的简化封装
+ *
+ * 使用示例
+ * ```
+ *  override fun initObserve() {
+ *      observe(mViewModel.stateViewLD, ::stateViewLivaDataHandler)
+ *  }
+ *
+ *  private fun stateViewLivaDataHandler(data: StateLayoutEnum) {
+ *      ...
+ *  }
+ * ```
+ *
+ * @receiver LifecycleOwner
+ * @param liveData LiveData<T> 需要进行订阅的LiveData
+ * @param action action: (t: T) -> Unit 处理订阅内容的方法
+ * @return Unit
+ */
+fun <T> LifecycleOwner.observe(liveData: LiveData<T>, action: (t: T) -> Unit) {
+    liveData.observe(this, { it?.let { t -> action(t) } })
+}

lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/ktx/PopupWindowKtx.kt

@@ -0,0 +1,21 @@
+package com.quyunshuo.androidbaseframemvvm.base.ktx
+
+import android.view.View
+import android.view.ViewGroup
+import android.widget.PopupWindow
+
+/**
+ * PopupWindow相关扩展
+ *
+ * @author Qu Yunshuo
+ * @since 1/4/21 10:48 AM
+ */
+
+/**
+ * 测量view宽高
+ */
+fun PopupWindow.makeDropDownMeasureSpec(measureSpec: Int): Int {
+    val mode =
+        if (measureSpec == ViewGroup.LayoutParams.WRAP_CONTENT) View.MeasureSpec.UNSPECIFIED else View.MeasureSpec.EXACTLY
+    return View.MeasureSpec.makeMeasureSpec(View.MeasureSpec.getSize(measureSpec), mode)
+}