com.facebook.react.modules.toast.ToastModule.java Source code

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Here is the source code for com.facebook.react.modules.toast.ToastModule.java

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/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

package com.facebook.react.modules.toast;

import android.view.Gravity;
import android.widget.Toast;
import com.facebook.react.bridge.NativeModule;
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.module.annotations.ReactModule;
import java.util.Map;

/** {@link NativeModule} that allows JS to show an Android Toast. */
@ReactModule(name = ToastModule.NAME)
public class ToastModule extends ReactContextBaseJavaModule {

    private static final String DURATION_SHORT_KEY = "SHORT";
    private static final String DURATION_LONG_KEY = "LONG";

    private static final String GRAVITY_TOP_KEY = "TOP";
    private static final String GRAVITY_BOTTOM_KEY = "BOTTOM";
    private static final String GRAVITY_CENTER = "CENTER";
    public static final String NAME = "ToastAndroid";

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

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public Map<String, Object> getConstants() {
        final Map<String, Object> constants = MapBuilder.newHashMap();
        constants.put(DURATION_SHORT_KEY, Toast.LENGTH_SHORT);
        constants.put(DURATION_LONG_KEY, Toast.LENGTH_LONG);
        constants.put(GRAVITY_TOP_KEY, Gravity.TOP | Gravity.CENTER_HORIZONTAL);
        constants.put(GRAVITY_BOTTOM_KEY, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL);
        constants.put(GRAVITY_CENTER, Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL);
        return constants;
    }

    @ReactMethod
    public void show(final String message, final int duration) {
        UiThreadUtil.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(getReactApplicationContext(), message, duration).show();
            }
        });
    }

    @ReactMethod
    public void showWithGravity(final String message, final int duration, final int gravity) {
        UiThreadUtil.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast toast = Toast.makeText(getReactApplicationContext(), message, duration);
                toast.setGravity(gravity, 0, 0);
                toast.show();
            }
        });
    }

    @ReactMethod
    public void showWithGravityAndOffset(final String message, final int duration, final int gravity,
            final int xOffset, final int yOffset) {
        UiThreadUtil.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast toast = Toast.makeText(getReactApplicationContext(), message, duration);
                toast.setGravity(gravity, xOffset, yOffset);
                toast.show();
            }
        });
    }
}