Android Open Source - gles2_sample_android Bundled Saved State

• Back to OpenGL/Sample  ↑

From Project

Back to project page gles2_sample_android.

License

The source code is released under:

Apache License

Java Source Code

package nz.gen.geek_central.android.useful;
/*/*from   w  w w  .  jav a2 s .co  m*/
    Generic class for easier implementation of save/restore instance state
    in a custom View subclass. This class holds all the state as items in
    a Bundle.

    Copyright 2012 by Lawrence D'Oliveiro <ldo@geek-central.gen.nz>.

    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.
*/

import android.os.Parcelable;
import android.os.Parcel;
import android.os.Bundle;
import android.view.AbsSavedState;

public class BundledSavedState extends AbsSavedState
  /* Create and return one of these in the onSaveInstanceState method in your custom View.
    Sample call sequence:
        final android.os.Bundle MyState = new android.os.Bundle();
        MyState.putxxx("MyName", MyValue);
        ... insert any other custom fields into the Bundle ...
        return
            new BundledSavedState(super.onSaveInstanceState(), MyState);

    Then, your onRestoreInstanceState method can cast its argument to an
    instance of this class, and process the saved fields appropriately, e.g.:
        super.onRestoreInstanceState(((BundledSavedState)SavedState).SuperState);
        final android.os.Bundle MyState = ((BundledSavedState)SavedState).MyState;
        MyValue = MyState.getxxx("MyName", MyDefault);
        ... retrieve any other custom fields ...
  */
  {

    public static final Parcelable.Creator<BundledSavedState> CREATOR =
        new Parcelable.Creator<BundledSavedState>()
          {
            public BundledSavedState createFromParcel
              (
                Parcel SavedState
              )
              {
                final AbsSavedState SuperState =
                    AbsSavedState.CREATOR.createFromParcel(SavedState);
                final Bundle MyState = SavedState.readBundle();
                return
                    new BundledSavedState(SuperState, MyState);
              } /*createFromParcel*/

            public BundledSavedState[] newArray
              (
                int NrElts
              )
              {
                return
                    new BundledSavedState[NrElts];
              } /*newArray*/
          } /*Parcelable.Creator*/;

        public final Parcelable SuperState; /* pass to super.onRestoreInstanceState() */
        public final Bundle MyState; /* all your custom state information saved here */

        public BundledSavedState
          (
            Parcelable SuperState, /* result from super.onSaveInstanceState() */
            Bundle MyState /* put all your custom state information here */
          )
          {
            super(SuperState);
            this.SuperState = SuperState;
            this.MyState = MyState;
          } /*BundledSavedState*/

        public void writeToParcel
          (
            Parcel SavedState,
            int Flags
          )
          {
            super.writeToParcel(SavedState, Flags);
            SavedState.writeBundle(MyState);
          } /*writeToParcel*/

  } /*BundledSavedState*/

Java Source Code List

• Back to OpenGL/Sample  ↑