com.anxpp.blog.fragment.AboutFragment.java Source code

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Here is the source code for com.anxpp.blog.fragment.AboutFragment.java

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/*******************************************************************************
 * Copyright 2012 Steven Rudenko
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package com.anxpp.blog.fragment;

import com.anxpp.blog.R;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class AboutFragment extends Fragment {
    public static final String TAG = AboutFragment.class.getSimpleName();

    private static final String ABOUT_SCHEME = "settings";
    private static final String ABOUT_AUTHORITY = "about";
    public static final Uri ABOUT_URI = new Uri.Builder().scheme(ABOUT_SCHEME).authority(ABOUT_AUTHORITY).build();

    private WebView webView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        final View v = inflater.inflate(R.layout.about, container, false);

        //?fragment
        //      v.findViewById(R.id.play).setOnClickListener(new View.OnClickListener() {
        //         @Override
        //         public void onClick(View v) {
        //            final Activity a = getActivity();
        //            if (a instanceof ExamplesActivity) {
        //               final ExamplesActivity examplesActivity = (ExamplesActivity) a;
        //               examplesActivity.updateContent(SandboxFragment.SETTINGS_URI);
        //            }
        //         }
        //      });
        return v;
    }

    @Override
    public void onStart() {
        initView();
        super.onStart();
    }

    @Override
    public void onDestroyView() {
        getActivity().setTitle(R.string.app_name);
        super.onDestroyView();
    }

    private void Toast(String msg) {
        android.widget.Toast.makeText(getActivity(), msg, android.widget.Toast.LENGTH_SHORT).show();
    }

    @SuppressLint("SetJavaScriptEnabled")
    private void initView() {
        webView = (WebView) getView().findViewById(R.id.webView);
        //      webView.setVisibility(View.GONE);
        webView.setWebChromeClient(new WebChromeClient() {
            public void onProgressChanged(WebView view, int progress) {
                Activity activity = getActivity();
                /**
                 * ?Fragment???
                 * I am not sure why are you getting this error, 
                 * i think it should be something like NullPointerException. 
                 * Try next: 
                 *     Evert time you calling getActivity() on Fragment instance you should be sure,
                 *     that fragment is actually have this Activity. 
                 *     Because when your webview is loading you are calling this function:
                 * */
                if (activity == null)
                    return;
                activity.setTitle("Loading..." + progress + "%");
                activity.setProgress(progress * 100);
                if (progress == 100) {
                    activity.setTitle(R.string.app_name);
                    webView.setVisibility(View.VISIBLE);
                }
            }
        });
        webView.setWebViewClient(new WebViewClient() {
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                Toast("shouldOverrideUrlLoading");
                view.loadUrl(url);
                return true;
            }
        });
        //??
        WebSettings webSettings = webView.getSettings();
        //?
        //webSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
        webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE);
        //?js
        webSettings.setJavaScriptEnabled(true);
        //? ?
        webSettings.setUseWideViewPort(false); //??
        webSettings.setLoadWithOverviewMode(true); // ??
        webView.loadUrl("http://anxpp.com");
        //
        webView.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                //trueWebViewfalse??
                view.loadUrl(url);
                return true; //false?
            }
        });
        webView.setOnKeyListener(new View.OnKeyListener() {
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    if (keyCode == KeyEvent.KEYCODE_BACK && webView.canGoBack()) { // ?
                        webView.goBack(); //?
                        return true; //?
                    }
                }
                return false;
            }
        });
    }
}