com.facebook.react.modules.statusbar.StatusBarModule.java Source code

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Here is the source code for com.facebook.react.modules.statusbar.StatusBarModule.java

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/**
 * Copyright (c) 2015-present, Facebook, Inc.
 * All rights reserved.
 * <p/>
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

package com.facebook.react.modules.statusbar;

import android.animation.ArgbEvaluator;
import android.animation.ValueAnimator;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.support.v4.view.ViewCompat;
import android.view.View;
import android.view.WindowInsets;
import android.view.WindowManager;

import java.util.Map;

import javax.annotation.Nullable;

import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.bridge.UiThreadUtil;
import com.facebook.react.common.MapBuilder;
import com.facebook.react.uimanager.PixelUtil;

/**
 * {@link NativeModule} that allows changing the appearance of the status bar.
 */
public class StatusBarModule extends ReactContextBaseJavaModule {

    private static final String ERROR_NO_ACTIVITY = "E_NO_ACTIVITY";
    private static final String ERROR_NO_ACTIVITY_MESSAGE = "Tried to change the status bar while not attached to an Activity";

    private static final String HEIGHT_KEY = "HEIGHT";

    public StatusBarModule(ReactApplicationContext reactContext) {
        super(reactContext);
    }

    @Override
    public String getName() {
        return "StatusBarManager";
    }

    @Override
    public @Nullable Map<String, Object> getConstants() {
        final Context context = getReactApplicationContext();
        final int heightResId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
        final float height = heightResId > 0
                ? PixelUtil.toDIPFromPixel(context.getResources().getDimensionPixelSize(heightResId))
                : 0;

        return MapBuilder.<String, Object>of(HEIGHT_KEY, height);
    }

    @ReactMethod
    public void setColor(final int color, final boolean animated, final Promise res) {
        final Activity activity = getCurrentActivity();
        if (activity == null) {
            res.reject(ERROR_NO_ACTIVITY, ERROR_NO_ACTIVITY_MESSAGE);
            return;
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            UiThreadUtil.runOnUiThread(new Runnable() {
                @TargetApi(Build.VERSION_CODES.LOLLIPOP)
                @Override
                public void run() {
                    if (animated) {
                        int curColor = activity.getWindow().getStatusBarColor();
                        ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), curColor, color);

                        colorAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                            @Override
                            public void onAnimationUpdate(ValueAnimator animator) {
                                activity.getWindow().setStatusBarColor((Integer) animator.getAnimatedValue());
                            }
                        });
                        colorAnimation.setDuration(300).setStartDelay(0);
                        colorAnimation.start();
                    } else {
                        activity.getWindow().setStatusBarColor(color);
                    }
                    res.resolve(null);
                }
            });
        } else {
            res.resolve(null);
        }
    }

    @ReactMethod
    public void setTranslucent(final boolean translucent, final Promise res) {
        final Activity activity = getCurrentActivity();
        if (activity == null) {
            res.reject(ERROR_NO_ACTIVITY, ERROR_NO_ACTIVITY_MESSAGE);
            return;
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            UiThreadUtil.runOnUiThread(new Runnable() {
                @TargetApi(Build.VERSION_CODES.LOLLIPOP)
                @Override
                public void run() {
                    // If the status bar is translucent hook into the window insets calculations
                    // and consume all the top insets so no padding will be added under the status bar.
                    View decorView = activity.getWindow().getDecorView();
                    if (translucent) {
                        decorView.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
                            @Override
                            public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
                                WindowInsets defaultInsets = v.onApplyWindowInsets(insets);
                                return defaultInsets.replaceSystemWindowInsets(
                                        defaultInsets.getSystemWindowInsetLeft(), 0,
                                        defaultInsets.getSystemWindowInsetRight(),
                                        defaultInsets.getSystemWindowInsetBottom());
                            }
                        });
                    } else {
                        decorView.setOnApplyWindowInsetsListener(null);
                    }

                    ViewCompat.requestApplyInsets(decorView);
                    res.resolve(null);
                }
            });
        }
    }

    @ReactMethod
    public void setHidden(final boolean hidden, final Promise res) {
        final Activity activity = getCurrentActivity();
        if (activity == null) {
            res.reject(ERROR_NO_ACTIVITY, ERROR_NO_ACTIVITY_MESSAGE);
            return;
        }
        UiThreadUtil.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                if (hidden) {
                    activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
                    activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
                } else {
                    activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
                    activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
                }

                res.resolve(null);
            }
        });
    }
}