常用参考基类写法之Fragment

public interface BaseFragmentInter {
void showToast(String msg);
//显示或者隐藏加载dialog
void showProgressBar();
void hideProgressBar();

/**
* 数据加载失败后显示的重加载按钮
* @param listener 监听器
*/
void showReLoadView( BaseActivity.OnReloadListener listener);

//显示或者隐藏加载进度dialog
void showProgressDialog(String title,String message);
void hideProgressDialog();

/**
* 更换fragment
* @param target 目标fragment
*/
void translateFragment(Fragment target);
}

//采用延迟加载技术，可选是否实现延迟加载

public abstract class BaseFragment extends Fragment implements BaseFragmentInter {

protected AppCompatActivity mParentActivity;
protected String TAG = getClass().getSimpleName();
ProgressBar mProgressBar;
ProgressDialog dialog; //进度窗口，会使当前界面不可点击
View view;
//获取布局id和初始化
protected abstract int getLayoutId();

protected abstract void initView(View view, Bundle savedInstanceState);

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(getLayoutId(), container, false);
this.view = view;
this.mParentActivity = (AppCompatActivity) getActivity();
//只处理findview，数据绑定由lazyload完成
initView(view, savedInstanceState);
LogUtils.e(TAG,"启动");
return view;
}

@Override
public void onAttach(Context context) {
mParentActivity = (AppCompatActivity) context;
super.onAttach(context);
}

//更换fragment
public void translateFragment(Fragment target){
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
transaction.add(getId(),target,target.getClass().getSimpleName());
transaction.hide(this);
transaction.show(target);
transaction.addToBackStack(this.getClass().getSimpleName());
transaction.commit();
}

public void showProgressBar() {
mProgressBar = mProgressBar == null ?
((BaseActivity)mParentActivity).createProgressBar(mParentActivity,null,0) : mProgressBar;
mProgressBar.setVisibility(View.VISIBLE);

}

public void hideProgressBar() {
if (mProgressBar == null) return;
mProgressBar.setVisibility(View.GONE);
}

public void showProgressDialog(String title,String message) {
if (dialog == null) {
dialog = new ProgressDialog(mParentActivity);
dialog.setTitle(title);
dialog.setMessage(message);
dialog.setCancelable(false);
}

dialog.show();
}

public void hideProgressDialog() {
if (dialog != null) dialog.dismiss();
}

public void showToast(String msg) {

Toast.makeText(mParentActivity,msg,Toast.LENGTH_SHORT).show();
}

public void showReLoadView(BaseActivity.OnReloadListener listener) {
((BaseActivity) mParentActivity).showReLoadView(listener);
}

}