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app/src/main/java/com/ttstd/dialer/base/BaseDialogFragment.java

@@ -0,0 +1,44 @@
+package com.ttstd.dialer.base;
+
+import android.os.Bundle;
+
+import com.ttstd.dialer.base.rx.BaseRxDialogFragment;
+
+public abstract class BaseDialogFragment extends BaseRxDialogFragment {
+
+    protected boolean isViewInitiated;
+    protected boolean isVisibleToUser;
+    protected boolean isDataInitiated;
+
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        isViewInitiated = true;
+        prepareFetchData();
+    }
+
+    @Override
+    public void setUserVisibleHint(boolean isVisibleToUser) {
+        super.setUserVisibleHint(isVisibleToUser);
+        this.isVisibleToUser = isVisibleToUser;
+        prepareFetchData();
+    }
+
+    public abstract void fetchData();
+
+    public boolean prepareFetchData() {
+        return prepareFetchData(false);
+    }
+
+    public boolean prepareFetchData(boolean forceUpdate) {
+        if (isVisibleToUser && isViewInitiated && (!isDataInitiated || forceUpdate)) {
+            fetchData();
+            //注释掉保证每次都更新数据
+//            isDataInitiated = true;
+            return true;
+        }
+        return false;
+    }
+
+}