Question

我第一次在标签上实现了带有滑动功能的Actionbar。我在蜂窝OS（Api等级11）上运行。因此，我必须使用支持兼容性库v13来使用视图寻呼机和用于构建滑动机制的其他组件，如FragmentPagerAdapter。

我正在使用developer.android上的教程来构建它。 Here is the link.

然而，我得到一个奇怪的问题，没有找到像附加和分离这样的方法。

让我发布完整的跟踪记录

09-04 13:07:42.560: E/AndroidRuntime(774): java.lang.NoSuchMethodError: android.app.FragmentTransaction.attach
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.support.v13.app.FragmentPagerAdapter.instantiateItem(FragmentPagerAdapter.java:99)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:832)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.support.v4.view.ViewPager.populate(ViewPager.java:1016)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.support.v4.view.ViewPager.populate(ViewPager.java:914)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.support.v4.view.ViewPager$3.run(ViewPager.java:244)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.os.Handler.handleCallback(Handler.java:587)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.os.Handler.dispatchMessage(Handler.java:92)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.os.Looper.loop(Looper.java:126)
09-04 13:07:42.560: E/AndroidRuntime(774):  at android.app.ActivityThread.main(ActivityThread.java:3997)
09-04 13:07:42.560: E/AndroidRuntime(774):  at java.lang.reflect.Method.invokeNative(Native Method)
09-04 13:07:42.560: E/AndroidRuntime(774):  at java.lang.reflect.Method.invoke(Method.java:491)
09-04 13:07:42.560: E/AndroidRuntime(774):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
09-04 13:07:42.560: E/AndroidRuntime(774):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
09-04 13:07:42.560: E/AndroidRuntime(774):  at dalvik.system.NativeStart.main(Native Method)

我也经历了代表相同问题的相同链接，但它没有解决我的问题。 this is the link to same issue

我没有使用ActionbarSherloc，因为我在Api等级11上运行。

我发布了我的Adapter类和TabListener，以防你想看看。

public class MyPagerAdapter extends FragmentPagerAdapter{

        Fragment mFragment;
        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
            // TODO Auto-generated constructor stub
        }

        @Override
        public android.app.Fragment getItem(int position) {
            // TODO Auto-generated method stub
            switch (position) {
            case 0:
                mFragment = (PatientForms)new PatientForms();
                return mFragment;
            case 1:
                mFragment = (Vitals)new Vitals();
                return mFragment;
            case 2:
                mFragment = (ChartsActivity)new ChartsActivity();
                return mFragment;
            case 3:
                mFragment = (Note)new Note();
                return mFragment;   
            default:
                return null;
            }
        }

        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return 4;
        }

        @Override
        public void destroyItem(ViewGroup container, int position,
                Object object) {
            // TODO Auto-generated method stub
        }

    }

private class MyTabListener implements ActionBar.TabListener
    {
        private Fragment mFragment;
        private final Activity mActivity;
        private final String mFragName;

        public MyTabListener( Activity activity, String fragName )
        {
            mActivity = activity;
            mFragName = fragName;
        }

        @Override
        public void onTabSelected( Tab tab, FragmentTransaction ft )
        {
            Log.i(TAG, "tab position to set is "+tab.getPosition());
            pager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabReselected(Tab tab, android.app.FragmentTransaction ft) {
            // TODO Auto-generated method stub

        }


        @Override
        public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) {
            // TODO Auto-generated method stub
//          ft.remove( mFragment );
//          mFragment = null;
        }
    }

Answer 1

试试这个

public android.support.v4.app.Fragment getItem(int position) {
        // TODO Auto-generated method stub
        switch (position) {

        default:
            return null;
        }
    }

<强>更新

检查导入语句并替换此行

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.app.FragmentActivity;

替换为

import android.support.v4.app.FragmentActivity;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;

java.lang.NoSuchMethodError：android.app.FragmentTransaction.attach兼容库v13问题

1 个答案: