PlaybackOverlayActivity.java

/*
 * Copyright (c) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.tvleanback.ui;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.os.BuildCompat;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;

import com.example.android.tvleanback.R;

/**
 * PlaybackOverlayActivity for video playback that loads PlaybackOverlayFragment and handles the
 * MediaSession object used to maintain the state of the media playback.
 */
public class PlaybackOverlayActivity extends LeanbackActivity {
    private static final float GAMEPAD_TRIGGER_INTENSITY_ON = 0.5f;
    // Off-condition slightly smaller for button debouncing
    private static final float GAMEPAD_TRIGGER_INTENSITY_OFF = 0.45f;
    private boolean gamepadTriggerPressed = false;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_playback);
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        // Change the intent returned by {@link #getIntent()}.
        // Note that getIntent() only returns the initial intent that created the activity
        // but we need the latest intent that contains the information of the latest video
        // that the user is selected.
        setIntent(intent);
    }

    @Override
    protected void onStop() {
        super.onStop();
        finish();
    }

    @Override
    public void onVisibleBehindCanceled() {
        getMediaController().getTransportControls().pause();
        super.onVisibleBehindCanceled();
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BUTTON_R1) {
            getMediaController().getTransportControls().skipToNext();
            return true;
        } else if (keyCode == KeyEvent.KEYCODE_BUTTON_L1) {
            getMediaController().getTransportControls().skipToPrevious();
            return true;
        } else if (keyCode == KeyEvent.KEYCODE_BUTTON_L2) {
            getMediaController().getTransportControls().rewind();
        } else if (keyCode == KeyEvent.KEYCODE_BUTTON_R2) {
            getMediaController().getTransportControls().fastForward();
        }

        return super.onKeyDown(keyCode, event);
    }

    @Override
    public boolean onGenericMotionEvent(MotionEvent event) {
        // This method will handle gamepad events
        if (event.getAxisValue(MotionEvent.AXIS_LTRIGGER) >
                GAMEPAD_TRIGGER_INTENSITY_ON && !gamepadTriggerPressed) {
            getMediaController().getTransportControls().rewind();
            gamepadTriggerPressed = true;
        } else if (event.getAxisValue(MotionEvent.AXIS_RTRIGGER) >
                GAMEPAD_TRIGGER_INTENSITY_ON && !gamepadTriggerPressed) {
            getMediaController().getTransportControls().fastForward();
            gamepadTriggerPressed = true;
        } else if(event.getAxisValue(MotionEvent.AXIS_LTRIGGER) < GAMEPAD_TRIGGER_INTENSITY_OFF
                && event.getAxisValue(MotionEvent.AXIS_RTRIGGER) < GAMEPAD_TRIGGER_INTENSITY_OFF) {
            gamepadTriggerPressed = false;
        }
        return super.onGenericMotionEvent(event);
    }

    public static boolean supportsPictureInPicture(Context context) {
        return BuildCompat.isAtLeastN()
                && context.getPackageManager().hasSystemFeature(
                        PackageManager.FEATURE_PICTURE_IN_PICTURE);
    }
}