dandelion/app/src/main/java/io/github/gsantner/opoc/util/Helpers.java

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/*
* ---------------------------------------------------------------------------- *
* Gregor Santner <gsantner.github.io> wrote this file. You can do whatever
* you want with this stuff. If we meet some day, and you think this stuff is
* worth it, you can buy me a coke in return. Provided as is without any kind
* of warranty. No attribution required. - Gregor Santner
*
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* License of this file: Creative Commons Zero (CC0 1.0)
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* http://creativecommons.org/publicdomain/zero/1.0/
* ----------------------------------------------------------------------------
*/
package io.github.gsantner.opoc.util;
import android.annotation.SuppressLint;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.res.ColorStateList;
import android.content.res.Configuration;
import android.graphics.drawable.Drawable;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.support.annotation.ColorRes;
import android.support.annotation.DrawableRes;
import android.support.annotation.RawRes;
import android.support.annotation.StringRes;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.AppCompatButton;
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import android.text.Html;
import android.text.SpannableString;
import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.method.LinkMovementMethod;
import android.text.util.Linkify;
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import android.util.DisplayMetrics;
import android.webkit.WebView;
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import android.widget.TextView;
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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Locale;
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import com.github.dfa.diaspora_android.App;
import com.github.dfa.diaspora_android.BuildConfig;
import com.github.dfa.diaspora_android.R;
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@SuppressWarnings({"WeakerAccess", "unused", "SameParameterValue"})
public class Helpers {
protected Context context;
protected Helpers(Context context) {
this.context = context;
}
public static Helpers get() {
return new Helpers(App.get());
}
public String str(@StringRes int strResId) {
return context.getString(strResId);
}
public Drawable drawable(@DrawableRes int resId) {
return ContextCompat.getDrawable(context, resId);
}
public int color(@ColorRes int resId) {
return ContextCompat.getColor(context, resId);
}
public Context context() {
return context;
}
public String colorToHexString(int intColor) {
return String.format("#%06X", 0xFFFFFF & intColor);
}
public String getAppVersionName() {
try {
PackageManager manager = context.getPackageManager();
PackageInfo info = manager.getPackageInfo(context.getPackageName(), 0);
return info.versionName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
return "unknown";
}
}
public void openWebpageInExternalBrowser(String url) {
Uri uri = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
public void showDonateBitcoinRequest() {
if (!BuildConfig.IS_GPLAY_BUILD) {
String btcUri = String.format("bitcoin:%s?amount=%s&label=%s&message=%s",
str(R.string.donate__bitcoin_id), str(R.string.donate__bitcoin_amount),
str(R.string.donate__bitcoin_message), str(R.string.donate__bitcoin_message));
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(btcUri));
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
context.startActivity(intent);
} catch (ActivityNotFoundException e) {
openWebpageInExternalBrowser(str(R.string.donate__bitcoin_url));
}
}
}
public String readTextfileFromRawRes(@RawRes int rawResId, String linePrefix, String linePostfix) {
StringBuilder sb = new StringBuilder();
BufferedReader br = null;
String line;
linePrefix = linePrefix == null ? "" : linePrefix;
linePostfix = linePostfix == null ? "" : linePostfix;
try {
br = new BufferedReader(new InputStreamReader(context.getResources().openRawResource(rawResId)));
while ((line = br.readLine()) != null) {
sb.append(linePrefix);
sb.append(line);
sb.append(linePostfix);
sb.append("\n");
}
} catch (Exception ignored) {
} finally {
if (br != null) {
try {
br.close();
} catch (IOException ignored) {
}
}
}
return sb.toString();
}
public void showDialogWithRawFileInWebView(String fileInRaw, @StringRes int resTitleId) {
WebView wv = new WebView(context);
wv.loadUrl("file:///android_res/raw/" + fileInRaw);
AlertDialog.Builder dialog = new AlertDialog.Builder(context)
.setPositiveButton(android.R.string.ok, null)
.setTitle(resTitleId)
.setView(wv);
dialog.show();
}
@SuppressLint("RestrictedApi")
public void setTintColorOfButton(AppCompatButton button, @ColorRes int resColor) {
button.setSupportBackgroundTintList(ColorStateList.valueOf(
color(resColor)
));
}
public boolean isConnectedToInternet() {
ConnectivityManager connectivityManager = (ConnectivityManager)
context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
return activeNetInfo != null && activeNetInfo.isConnectedOrConnecting();
}
public void restartApp(Class classToStartupWith) {
Intent restartIntent = new Intent(context, classToStartupWith);
PendingIntent restartIntentP = PendingIntent.getActivity(context, 555,
restartIntent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager mgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 100, restartIntentP);
System.exit(0);
}
public String loadMarkdownForTextViewFromRaw(@RawRes int rawMdFile, String prepend) {
try {
return new SimpleMarkdownParser()
.parse(context.getResources().openRawResource(rawMdFile),
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prepend, SimpleMarkdownParser.FILTER_ANDROID_TEXTVIEW)
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.replaceColor("#000001", color(R.color.accent))
.removeMultiNewlines().replaceBulletCharacter("*").getHtml();
} catch (IOException e) {
e.printStackTrace();
return "";
}
}
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public void setHtmlToTextView(TextView textView, String html) {
Spanned spanned;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
spanned = Html.fromHtml(html, Html.FROM_HTML_MODE_LEGACY);
} else {
spanned = Html.fromHtml(html);
}
textView.setMovementMethod(LinkMovementMethod.getInstance());
textView.setText(new SpannableString(spanned));
}
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public double getEstimatedScreenSizeInches() {
DisplayMetrics dm = context.getResources().getDisplayMetrics();
double density = dm.density * 160;
double x = Math.pow(dm.widthPixels / density, 2);
double y = Math.pow(dm.heightPixels / density, 2);
double screenInches = Math.sqrt(x + y) * 1.16; // 1.16 = est. Nav/Statusbar
screenInches = screenInches < 4.0 ? 4.0 : screenInches;
screenInches = screenInches > 12.0 ? 12.0 : screenInches;
return screenInches;
}
public boolean isInPortraitMode() {
return context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT;
}
public Locale getLocaleByAndroidCode(String code) {
if (!TextUtils.isEmpty(code)) {
return code.contains("-r")
? new Locale(code.substring(0, 2), code.substring(4, 6)) // de-rAt
: new Locale(code); // de
}
return Locale.getDefault();
}
// "en"/"de"/"de-rAt"; Empty string = default locale
public void setAppLanguage(String androidLocaleString) {
Locale locale = getLocaleByAndroidCode(androidLocaleString);
Configuration config = context.getResources().getConfiguration();
config.locale = locale != null ? locale : Locale.getDefault();
context.getResources().updateConfiguration(config, null);
}
}