ゲームブートキャンプ１１日目

今日やること

ちょっと遊びすぎた。

01:00-01:30

• Google Play Servicesの調査つづき

Setupつづき

proguard-project.txtに追加

-keep class * extends java.util.ListResourceBundle {
    protected Object[][] getContents();
}

-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
    public static final *** NULL;
}

-keepnames @com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
    @com.google.android.gms.common.annotation.KeepName *;
}

-keepnames class * implements android.os.Parcelable {
    public static final ** CREATOR;
}

まちがってるがな。s/gradle.build/build.gradle/g

Note: When using Android Studio, you must add Proguard to your gradle.build file's build types. For more information, see the Gradle Plugin User Guide.

Google Play services APKを利用できるかチェック

• onResume()のなかでチェックするとよい
• 必要なときにgoogle play servicesのversionをチェックする
  • http://developer.android.com/reference/com/google/android/gms/common/GooglePlayServicesUtil.html#isGooglePlayServicesAvailable(android.content.Context)

Google Play Servicesにアクセスする

• http://developer.android.com/google/auth/api-client.html

GoogleApiClientを利用する (GoogleDrive)

GoogleApiClient mGoogleApiClient = new GoogleApiClient.Builder(this)
    .addApi(Drive.API)
    .addScope(Drive.SCOPE_FILE)
    .build();

connect()でつなぐ前にcallbackをimplementする

public class MyActivity extends FragmentActivity
        implements ConnectionCallbacks, OnConnectionFailedListener {
    private GoogleApiClient mGoogleApiClient;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Create a GoogleApiClient instance
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Drive.API)
                .addScope(Drive.SCOPE_FILE)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();
        ...
    }
    @Override
    protected void onStart() {
        super.onStart();
        if (!mResolvingError) {  // more about this later
            mGoogleApiClient.connect();
        }
    }
    @Override
    protected void onStop() {
        mGoogleApiClient.disconnect();
        super.onStop();
    }
    @Override
    public void onConnected(Bundle connectionHint) {}
    @Override
    public void onConnectionSuspended(int cause) {}
    @Override
    public void onConnectionFailed(ConnectionResult result) {}
}