Android 使用 Icepick 库 save/restore 打包

Question

我正在尝试在我们的应用程序上使用 Icepick 库来保存和恢复包 phone 轮换，但是我找不到保存和 class 的好的库文档es 由 @Parcel 注释实现，这很简单 class 我在页面

上找到的

Example class:

@Parcel
public class Example {
    String name;
    int age;

    public Example(){ /*Required empty bean constructor*/ }

    public Example(int age, String name) {
        this.age = age;
        this.name = name;
    }

    public String getName() { return name; }
    public int getAge() { return age; }

    public String setName(String name) { this.name = name; }
    public int setAge(int age ) { this.age = age; }
}

ExampleBundler class:

public class ExampleBundler implements Bundler<Object> {
    @Override
    public void put(String s, Object example, Bundle bundle) {
        bundle.putParcelable(s, Parcels.wrap(example));
    }

    @Override
    public Object get(String s, Bundle bundle) {
        return Parcels.unwrap(bundle.getParcelable(s));
    }
}

好的，现在我如何在 Activity 上使用它？

这是我尝试保存和恢复的简单代码

public class MainActivity extends BaseActivity {

  /* @State(ExampleBundler.class) String message; */

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Example example = new Example();
    example.setName = "HELLO WORLD";
    example.setAge = 99;
  }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
    }

    public void onRestoreInstanceState(Bundle inState) {
    }
}

你能修复我的代码吗？感谢提前

Answer 1

要修复您的代码，捆绑器必须实现示例 class 而不是一般对象 class 因此更改

    public class ExampleBundler implements Bundler<Object> {
    @Override
    public void put(String s, Object example, Bundle bundle) {
        bundle.putParcelable(s, Parcels.wrap(example));
    }

    @Override
    public Object get(String s, Bundle bundle) {
        return Parcels.unwrap(bundle.getParcelable(s));
    }
}

至此

public class ExampleBundler implements Bundler<Example> {
    @Override
    public void put(String s, Example example, Bundle bundle) {
        bundle.putParcelable(s, Parcels.wrap(example));
    }

    @Override
    public Example get(String s, Bundle bundle) {
        return Parcels.unwrap(bundle.getParcelable(s));
    }
}

然后，您必须将 @State(ExampleBundler.class) Example example; 添加到 activity 的顶部。在您的 onCreate 添加 Icepick.restoreInstanceState(this, savedInstanceState) 并在您的 onSavedInstanceState 添加 Icepick.saveInstanceState(this,outstate)

Icepick documentation and parceler

Android 使用 Icepick 库 save/restore 打包

Android use Icepick library to save/restore bundle

android

parceler