android - Android 中 FragmentTransaction 的类型不匹配与 getFragmentManager().beginTransaction()

Question

当我尝试通过在 Activity 中声明 FragmentTransaction ft = getFragmentManager().beginTransaction() 来替换 Fragment 时，我总是会收到以下错误警报:

import android.support.v4.app.FragmentTransaction;

    public class MainFrameActivity extends ActivitySupport {

    FragmentTransaction ft = getFragmentManager().beginTransaction();

    switch (position) {
    case 0:
        ft.replace(R.id.content_frame, fragmentDiscover);
        break;
    case 1:
        ft.replace(R.id.content_frame, fragmentPersonInfo);
        break;
    }

    ft.commit();

    mDrawerList.setItemChecked(position, true);

    mDrawerLayout.closeDrawer(mDrawerList);
}

并且该类是 ActivitySupport 继承自:

public class ActivitySupport extends Activity implements IActivitySupport {

我已经尝试将 getFragmentManager 更改为 getSupportFragmentManager()，并且发出警告该方法不是未定义的情况变得更糟。

那么我该怎么做才能使 getFragmentManager() 成为 v4 支持的方法？

Answer 1

改变它

public class ActivitySupport extends Activity implements IActivitySupport {

给

public class ActivitySupport extends FragmentActivity implements IActivitySupport {

然后就可以了

FragmentTransaction ft = getSupportFragmentManager().beginTransaction();