Android初学第95天
30_WebView
代码
PhotoGallery
PhotoPageActivity.java
package com.bignerdranch.android.photogallery;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.support.v4.app.Fragment;
public class PhotoPageActivity extends SingleFragmentActivity {
public static Intent newIntent(Context context, Uri photoPageUri) {
Intent i = new Intent(context, PhotoPageActivity.class);
i.setData(photoPageUri);
return i;
}
@Override
protected Fragment createFragment() {
return PhotoPageFragment.newInstance(getIntent().getData());
}
}
PhotoPageFragment.java
package com.bignerdranch.android.photogallery;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
public class PhotoPageFragment extends VisibleFragment {
private static final String ARG_URI = "photo_page_url";
private Uri mUri;
private WebView mWebView;
private ProgressBar mProgressBar;
public static PhotoPageFragment newInstance(Uri uri) {
Bundle args = new Bundle();
args.putParcelable(ARG_URI, uri);
PhotoPageFragment fragment = new PhotoPageFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUri = getArguments().getParcelable(ARG_URI);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_photo_page, container, false);
mProgressBar = (ProgressBar)v.findViewById(R.id.progress_bar);
mProgressBar.setMax(100); // WebChromeClient reports in range 0-100
mWebView = (WebView) v.findViewById(R.id.web_view);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView webView, int newProgress) {
if (newProgress == 100) {
mProgressBar.setVisibility(View.GONE);
} else {
mProgressBar.setVisibility(View.VISIBLE);
mProgressBar.setProgress(newProgress);
}
}
public void onReceivedTitle(WebView webView, String title) {
AppCompatActivity activity = (AppCompatActivity) getActivity();
activity.getSupportActionBar().setSubtitle(title);
}
});
mWebView.setWebViewClient(new WebViewClient());
mWebView.loadUrl(mUri.toString());
return v;
}
}