BaseFragment.java

package com.cheikh.lazywaimai.base;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.annotation.StringRes;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import butterknife.Bind;
import butterknife.ButterKnife;
import com.cheikh.lazywaimai.R;
import com.cheikh.lazywaimai.util.ContentView;
import com.cheikh.lazywaimai.widget.LoadingDialog;

/**
 * author: cheikh.wang on 16/11/23
 * email: wanghonghi@126.com
 */
public abstract class BaseFragment<UC> extends CoreFragment<UC> {

    @Nullable
    @Bind(R.id.toolbar)
    Toolbar mToolbar;

    private LoadingDialog mLoading;

    @Override
    public final View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(getLayoutResId(), container, false);
    }

    @Override
    public final void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        ButterKnife.bind(this, view);
        initialToolbar();
        handleArguments(getArguments());
        initializeViews(savedInstanceState);
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        ButterKnife.unbind(this);
    }

    protected int getLayoutResId() {
        for (Class c = getClass(); c != Fragment.class; c = c.getSuperclass()) {
            ContentView annotation = (ContentView) c.getAnnotation(ContentView.class);
            if (annotation != null) {
                return annotation.value();
            }
        }
        return 0;
    }

    protected void initialToolbar() {
        if (mToolbar != null) {
            mToolbar.setTitle(getTitle());
            setSupportActionBar(mToolbar);
            if (isShowBack()) {
                getSupportActionBar().setHomeButtonEnabled(true);
                getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            }
        }
    }

    protected void handleArguments(Bundle arguments) {}

    protected void initializeViews(Bundle savedInstanceState) {}

    protected Toolbar getToolbar() {
        return mToolbar;
    }

    protected String getTitle() {
        return null;
    }

    protected boolean isShowBack() {
        return true;
    }

    protected void setTitle(CharSequence title) {
        if (mToolbar != null) {
            mToolbar.setTitle(title);
        }
    }

    protected void setTitle(@StringRes int titleRes) {
        if (mToolbar != null) {
            mToolbar.setTitle(titleRes);
        }
    }

    protected void setSupportActionBar(Toolbar toolbar) {
        ((BaseActivity) getActivity()).setSupportActionBar(toolbar);
    }

    protected ActionBar getSupportActionBar() {
        return ((BaseActivity) getActivity()).getSupportActionBar();
    }

    protected final void showLoading(@StringRes int textResId) {
        showLoading(getString(textResId));
    }

    protected final void showLoading(String text) {
        cancelLoading();
        if (mLoading == null) {
            mLoading = new LoadingDialog(getContext());
            mLoading.setCancelable(false);
            mLoading.setCanceledOnTouchOutside(false);
        }
        mLoading.setTitle(text);
        mLoading.show();
    }

    protected final void cancelLoading() {
        if (mLoading != null && mLoading.isShowing()) {
            mLoading.dismiss();
        }
    }
}