1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
package de.danoeh.antennapod.activity;
import android.content.Intent;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.LinearLayout;
import org.apache.commons.io.IOUtils;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.core.preferences.UserPreferences;
import io.reactivex.Single;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;
import io.reactivex.schedulers.Schedulers;
/**
* Displays the 'about' screen
*/
public class AboutActivity extends AppCompatActivity {
private static final String TAG = AboutActivity.class.getSimpleName();
private WebView webView;
private LinearLayout webViewContainer;
private Disposable disposable;
@Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(UserPreferences.getTheme());
super.onCreate(savedInstanceState);
getSupportActionBar().setDisplayShowHomeEnabled(true);
setContentView(R.layout.about);
webViewContainer = findViewById(R.id.webViewContainer);
webView = findViewById(R.id.webViewAbout);
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
webView.setBackgroundColor(Color.TRANSPARENT);
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith("http")) {
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(browserIntent);
return true;
} else {
url = url.replace("file:///android_asset/", "");
loadAsset(url);
return true;
}
}
});
loadAsset("about.html");
}
private void loadAsset(String filename) {
disposable = Single.create(subscriber -> {
InputStream input = null;
try {
TypedArray res = AboutActivity.this.getTheme().obtainStyledAttributes(
new int[] { R.attr.about_screen_font_color, R.attr.about_screen_background,
R.attr.about_screen_card_background, R.attr.about_screen_card_border});
String fontColor = String.format("#%06X", 0xFFFFFF & res.getColor(0, 0));
String backgroundColor = String.format("#%06X", 0xFFFFFF & res.getColor(1, 0));
String cardBackground = String.format("#%06X", 0xFFFFFF & res.getColor(2, 0));
String cardBorder = String.format("#%06X", 0xFFFFFF & res.getColor(3, 0));
res.recycle();
input = getAssets().open(filename);
String webViewData = IOUtils.toString(input, Charset.defaultCharset());
if (!webViewData.startsWith("<!DOCTYPE html>")) {
webViewData = webViewData.replace("%", "%");
webViewData =
"<!DOCTYPE html>" +
"<html>" +
"<head>" +
" <meta http-equiv=\"Content-Type\" content=\"text/html;charset=UTF-8\">" +
" <style type=\"text/css\">" +
" @font-face {" +
" font-family: 'Roboto-Light';" +
" src: url('file:///android_asset/Roboto-Light.ttf');" +
" }" +
" * {" +
" color: @fontcolor@;" +
" font-family: roboto-Light;" +
" font-size: 8pt;" +
" }" +
" </style>" +
"</head><body><p>" + webViewData + "</p></body></html>";
webViewData = webViewData.replace("\n", "<br/>");
}
webViewData = webViewData.replace("@fontcolor@", fontColor);
webViewData = webViewData.replace("@background@", backgroundColor);
webViewData = webViewData.replace("@card_background@", cardBackground);
webViewData = webViewData.replace("@card_border@", cardBorder);
subscriber.onSuccess(webViewData);
} catch (IOException e) {
Log.e(TAG, Log.getStackTraceString(e));
subscriber.onError(e);
} finally {
IOUtils.closeQuietly(input);
}
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(
webViewData ->
webView.loadDataWithBaseURL("file:///android_asset/", webViewData.toString(), "text/html", "utf-8", "file:///android_asset/" + filename.toString()),
error -> Log.e(TAG, Log.getStackTraceString(error))
);
}
@Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
onBackPressed();
return true;
} else {
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (disposable != null) {
disposable.dispose();
}
if (webViewContainer != null && webView != null) {
webViewContainer.removeAllViews();
webView.destroy();
}
}
}
|
