HelpActivity.java

/*
 * VoIP.ms SMS
 * Copyright (C) 2015-2016 Michael Kourlas
 *
 * 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 net.kourlas.voipms_sms.activities;

import android.annotation.TargetApi;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.view.ViewCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.webkit.WebResourceRequest;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import net.kourlas.voipms_sms.R;

public class HelpActivity extends AppCompatActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.help);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        ViewCompat.setElevation(toolbar, getResources()
            .getDimension(R.dimen.toolbar_elevation));
        setSupportActionBar(toolbar);
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setHomeButtonEnabled(true);
            actionBar.setDisplayHomeAsUpEnabled(true);
        }

        WebView browser = (WebView) findViewById(R.id.web_view);
        browser.loadUrl(getString(R.string.help_url));
        browser.setWebViewClient(new WebViewClient() {
            @SuppressWarnings("deprecation")
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                if (url != null && (url.startsWith("http://")
                                    || url.startsWith("https://")))
                {
                    view.getContext().startActivity(new Intent(
                        Intent.ACTION_VIEW, Uri.parse(url)));
                    return true;
                } else {
                    return false;
                }
            }

            @TargetApi(Build.VERSION_CODES.N)
            @Override
            public boolean shouldOverrideUrlLoading(WebView view,
                                                    WebResourceRequest request)
            {
                final String url = request.getUrl().toString();
                if (url != null && (url.startsWith("http://")
                                    || url.startsWith("https://")))
                {
                    view.getContext().startActivity(new Intent(
                        Intent.ACTION_VIEW, Uri.parse(url)));
                    return true;
                } else {
                    return false;
                }
            }
        });
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        ActivityMonitor.getInstance().deleteReferenceToActivity(this);
    }

    @Override
    protected void onPause() {
        super.onPause();
        ActivityMonitor.getInstance().deleteReferenceToActivity(this);
    }

    @Override
    protected void onResume() {
        super.onResume();
        ActivityMonitor.getInstance().setCurrentActivity(this);
    }
}