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app/src/main/java/cn/shangyu/gdxzExpert/adapter/BaseFragemetAdapter.java

@@ -0,0 +1,48 @@
+package cn.shangyu.gdxzExpert.adapter;
+
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentStatePagerAdapter;
+
+public class BaseFragemetAdapter extends FragmentStatePagerAdapter {
+    ArrayList<Fragment> fgs;
+    private String[] mTitles;
+    public Fragment currentFragment;
+
+    public void setFgs(ArrayList<Fragment> fgs, String[] mTitles){
+        this.fgs=fgs;
+        this.mTitles=mTitles;
+    }
+    public BaseFragemetAdapter(FragmentManager fm) {
+        super(fm);
+    }
+
+    @Override
+    public void setPrimaryItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
+
+        this.currentFragment = (Fragment) object;
+        super.setPrimaryItem(container, position, object);
+    }
+
+    @Override
+    public Fragment getItem(int position) {
+
+        return fgs.get(position);
+    }
+
+    @Override
+    public int getCount() {
+        return fgs.size();
+    }
+
+    @Override
+    public CharSequence getPageTitle(int position) {
+        return mTitles[position];//很重要，起到与tableLayout关联的作用，
+//            否则会报错
+    }
+}