【发布时间】:2017-02-17 16:35:34
【问题描述】:
我希望我的应用程序有带有多个状态的侧边菜单,它们之间可以平滑过渡。为了做到这一点,我将 PagerView 实例设置为导航抽屉。我的活动 xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="net.rhyboo.com.drawer_test.MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
<net.rhyboo.com.drawer_test.PuzzlePagerView
android:layout_gravity="start"
android:layout_height="match_parent"
android:layout_width="240dp"
android:background="@android:color/white"
android:id="@+id/pager">
</net.rhyboo.com.drawer_test.PuzzlePagerView>
它适用于空的PagerView。但是,如果我为PagerView设置适配器,我得到堆栈溢出异常。这是我的活动类:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DrawerLayout drawer=(DrawerLayout) findViewById(R.id.drawer);
drawer.setScrimColor(getResources().getColor(R.color.gameMenuDim));
PuzzlePagerView pager=(PuzzlePagerView)findViewById(R.id.pager);
GameMenuPagerAdapter menuAdapter=new GameMenuPagerAdapter(getSupportFragmentManager());
pager.setAdapter(menuAdapter);
}
}
适配器:
public class GameMenuPagerAdapter extends FragmentPagerAdapter {
private GameMenuFragment gameMenu;
public GameMenuPagerAdapter(FragmentManager fm) {
super(fm);
gameMenu=new GameMenuFragment();
}
@Override
public Fragment getItem(int position) {
Log.d("pager",position+"");
switch (position) {
case 0:
return gameMenu;
}
return null;
}
@Override
public int getCount() {
return 1;
}
}
ViewPager:
package net.rhyboo.com.drawer_test;
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
public class PuzzlePagerView extends ViewPager {
private boolean touchEnabled;
public PuzzlePagerView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (this.touchEnabled) {
return super.onTouchEvent(event);
}
return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.touchEnabled) {
return super.onInterceptTouchEvent(event);
}
return false;
}
public void setPagingEnabled(boolean enabled) {
this.touchEnabled = enabled;
}
}
片段:
public class GameMenuFragment extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.game_menu,container);
}
}
堆栈跟踪:
E/AndroidRuntime: 致命异常: main
进程:net.rhyboo.com.drawer_test,PID:14588
java.lang.StackOverflowError: 堆栈大小 8MB
在 android.view.ViewGroup.jumpDrawablesToCurrentState(ViewGroup.java:6274)
在 android.view.ViewGroup.jumpDrawablesToCurrentState(ViewGroup.java:6278)
在 android.view.ViewGroup.jumpDrawablesToCurrentState(ViewGroup.java:6278)
在 android.view.ViewGroup.jumpDrawablesToCurrentState(ViewGroup.java:6278)
....
【问题讨论】:
-
你能提供 PuzzlePagerView / GameMenuFragment 吗?
-
Stackoverflow error的可能重复
-
乍一看,我猜你的问题在
GameMenuFragment内部,就像@Submersed 建议的那样,你能发布这些类的代码吗? -
在初始帖子中添加了 pagerView 和片段类
-
如果我将片段视图膨胀中的容器参数更改为
null,错误就会消失,但在这种情况下,它不会将我的布局添加到视图层次结构中。
标签: android drawerlayout