80 lines
2.1 KiB
Java
80 lines
2.1 KiB
Java
package org.thoughtcrime.securesms.util;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.content.res.Configuration;
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import android.os.Build;
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import androidx.annotation.NonNull;
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import androidx.annotation.StyleRes;
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import org.thoughtcrime.securesms.R;
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public class DynamicTheme {
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public static final String DARK = "dark";
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public static final String LIGHT = "light";
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public static final String SYSTEM = "system";
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private int currentTheme;
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public void onCreate(Activity activity) {
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currentTheme = getSelectedTheme(activity);
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activity.setTheme(currentTheme);
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}
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public void onResume(Activity activity) {
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if (currentTheme != getSelectedTheme(activity)) {
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Intent intent = activity.getIntent();
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activity.finish();
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OverridePendingTransition.invoke(activity);
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activity.startActivity(intent);
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OverridePendingTransition.invoke(activity);
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}
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}
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private @StyleRes int getSelectedTheme(Activity activity) {
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if (isDarkTheme(activity)) {
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return getDarkThemeStyle();
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} else {
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return getLightThemeStyle();
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}
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}
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protected @StyleRes int getLightThemeStyle() {
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return R.style.TextSecure_LightTheme;
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}
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protected @StyleRes int getDarkThemeStyle() {
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return R.style.TextSecure_DarkTheme;
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}
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public static boolean systemThemeAvailable() {
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return Build.VERSION.SDK_INT >= 29;
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}
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/**
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* Takes the system theme into account.
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*/
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public static boolean isDarkTheme(@NonNull Context context) {
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String theme = TextSecurePreferences.getTheme(context);
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if (theme.equals(SYSTEM) && systemThemeAvailable()) {
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return isSystemInDarkTheme(context);
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} else {
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return theme.equals(DARK);
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}
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}
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private static boolean isSystemInDarkTheme(@NonNull Context context) {
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return (context.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES;
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}
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private static final class OverridePendingTransition {
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static void invoke(Activity activity) {
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activity.overridePendingTransition(0, 0);
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}
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}
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}
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