修复BannerComponent 的adapter的count为0 的bug

优化FragmentListPageAdapter count为很大的数情况，SparseArray代替ArrayList
LuckyJayce · Aug 11, 2016 · 018405e · 018405e
1 parent 62df000
commit 018405e
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Showing 8 changed files with 247 additions and 211 deletions.
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/app/src/main/java/com/shizhefei/indicator/BannerActivity.java b/app/src/main/java/com/shizhefei/indicator/BannerActivity.java
@@ -32,13 +32,22 @@ protected void onCreate(Bundle arg0) {
         bannerComponent = new BannerComponent(indicator, viewPager, false);
         bannerComponent.setAdapter(adapter);
 
+        findViewById(R.id.button3).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                images = new int[]{};
+                adapter.notifyDataSetChanged();
+            }
+        });
+
         findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                images = new int[]{R.drawable.p2, R.drawable.p3, R.drawable.p4};
+                images = new int[]{R.drawable.p2};
                 adapter.notifyDataSetChanged();
             }
         });
+
         findViewById(R.id.button2).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {

diff --git a/app/src/main/java/com/shizhefei/indicator/year/YearActivity.java b/app/src/main/java/com/shizhefei/indicator/year/YearActivity.java
@@ -2,12 +2,11 @@
 
 import android.graphics.Color;
 import android.os.Bundle;
-import android.os.Handler;
+import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.view.ViewPager;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ProgressBar;
 import android.widget.TextView;
 
 import com.shizhefei.indicator.DisplayUtil;
@@ -36,15 +35,16 @@ public void onCreate(Bundle savedInstanceState) {
         indicator.setScrollBar(new SpringBar(getApplicationContext(), Color.GRAY));
         viewPager.setOffscreenPageLimit(4);
         indicatorViewPager = new IndicatorViewPager(indicator, viewPager);
-        indicatorViewPager.setAdapter(new YearAdapter(1800, 2100));
-        indicatorViewPager.setCurrentItem(2016 - 1800, false);
+        indicatorViewPager.setAdapter(new YearAdapter(1800, 10000000));
+        indicatorViewPager.setCurrentItem(2016-1800, false);
     }
 
-    private class YearAdapter extends IndicatorViewPager.IndicatorViewPagerAdapter {
+    private class YearAdapter extends IndicatorViewPager.IndicatorFragmentPagerAdapter {
         private int startYear;
         private int endYear;
 
         public YearAdapter(int startYear, int endYear) {
+            super(getSupportFragmentManager());
             this.startYear = startYear;
             this.endYear = endYear;
         }
@@ -62,20 +62,12 @@ public View getViewForTab(int position, View convertView, ViewGroup container) {
         }
 
         @Override
-        public View getViewForPage(int position, View convertView, ViewGroup container) {
-            if (convertView == null) {
-                convertView = getLayoutInflater().inflate(R.layout.fragment_tabmain_item, container, false);
-            }
-            final TextView textView = (TextView) convertView.findViewById(R.id.fragment_mainTab_item_textView);
-            textView.setText(" " + position + " 界面加载完毕");
-            final ProgressBar progressBar = (ProgressBar) convertView.findViewById(R.id.fragment_mainTab_item_progressBar);
-            new Handler() {
-                public void handleMessage(android.os.Message msg) {
-                    textView.setVisibility(View.VISIBLE);
-                    progressBar.setVisibility(View.GONE);
-                }
-            }.sendEmptyMessageDelayed(1, 3000);
-            return convertView;
+        public Fragment getFragmentForPage(int position) {
+            YearFragment yearFragment = new YearFragment();
+            Bundle a = new Bundle();
+            a.putInt(YearFragment.INTENT_INT_POSITION, position);
+            yearFragment.setArguments(a);
+            return yearFragment;
         }
 
         @Override

diff --git a/app/src/main/java/com/shizhefei/indicator/year/YearFragment.java b/app/src/main/java/com/shizhefei/indicator/year/YearFragment.java
@@ -0,0 +1,38 @@
+package com.shizhefei.indicator.year;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.shizhefei.fragment.LazyFragment;
+import com.shizhefei.indicator.demo.R;
+
+/**
+ * Created by LuckyJayce on 2016/8/11.
+ */
+public class YearFragment extends LazyFragment {
+    public static final String INTENT_INT_POSITION = "intent_int_position";
+
+    @Override
+    protected void onCreateViewLazy(Bundle savedInstanceState) {
+        super.onCreateViewLazy(savedInstanceState);
+
+        Log.d("pppp", "onCreateViewLazy  " + this+" "+savedInstanceState);
+
+        int position = getArguments().getInt(INTENT_INT_POSITION);
+
+        setContentView(R.layout.fragment_tabmain_item);
+        final TextView textView = (TextView) findViewById(R.id.fragment_mainTab_item_textView);
+        textView.setText(" " + position + " 界面加载完毕");
+        final ProgressBar progressBar = (ProgressBar) findViewById(R.id.fragment_mainTab_item_progressBar);
+        textView.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                textView.setVisibility(View.VISIBLE);
+                progressBar.setVisibility(View.GONE);
+            }
+        }, 3000);
+    }
+}
diff --git a/app/src/main/res/layout/activity_banner.xml b/app/src/main/res/layout/activity_banner.xml
@@ -28,14 +28,23 @@
         android:layout_marginTop="60dp"
         android:gravity="center">
 
+        <Button
+            android:id="@+id/button3"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginLeft="16dp"
+            android:layout_marginRight="16dp"
+            android:text="变为0个" />
+
         <Button
             android:id="@+id/button"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal"
             android:layout_marginLeft="16dp"
             android:layout_marginRight="16dp"
-            android:text="变为3个" />
+            android:text="变为1个" />
 
         <Button
             android:id="@+id/button2"