masaibar

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    AlertDialog.Builder(applicationContext)
        .setTitle("title")
        .setView(R.layout.view_scrollable_text)
        .setPositiveButton(
            "OK"
        ) { _, _ ->

masaibar

<manifest>
    <application>
           :
          (中略)
           :
           <meta-data
            android:name="com.google.android.gms.ads.APPLICATION_ID"
            android:value="ADMOB_APP_ID"/>

    </application>

masaibar

<application
        android:icon="@mipmap/ic_launcher"
 />

masaibar

class ScaleTransformation(
        private val scale: Float
) : Transformation {

    override fun transform(source: Bitmap?): Bitmap? {
        source ?: return null

        //1倍にするとcreateBitmapしてもsourceを返そうとして死ぬ
        if (scale == 1f) {
            return source

masaibar

class MainActivity : Activity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
    }
}

masaibar

import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.media.AudioManager

class HeadsetEventReceiver :BroadcastReceiver() {

    override fun onReceive(context: Context?, intent: Intent?) {
        if (intent == null || intent.action != Intent.ACTION_HEADSET_PLUG) {
            return

masaibar

private fun setAppMuted(muteState: Boolean) {
    val audioManager = getSystemService(Context.AUDIO_SERVICE) as AudioManager
    audioManager.setStreamMute(AudioManager.STREAM_MUSIC, muteState)
}

masaibar

<activity
    android:name=".TutorialActivity"
    android:theme="@style/WelcomeScreenTheme">

masaibar

public class UpdateChecker {
    private static final String KEY_LATEST_VERSION_CODE = "latestVersionCode";
    private static final String KEY_SHOW_NOTIFICATION_FLAG = "showNotificationFlag";
    private static final String KEY_NOTIFICATION_TICKER = "notificationTicker";
    private static final String KEY_NOTIFICATION_TITLE = "notificationTitle";
    private static final String KEY_NOTIFICATION_CONTENT = "notificationContent";

    private int mConfigId;

    public UpdateChecker(int configId) {

masaibar

        <activity
            android:name=".MainActivity"
            android:label="${label}"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>