AppCompat的AccountAuthenticatorActivity

问题描述

我正在按照该教程制作身份验证器：

I'm making an authenticator following the tutorial: http://blog.udinic.com/2013/04/24/write-your-own-android-authenticator/

登录活动需要扩展 AccountAuthenticatorActivity ，则问题从这里开始： AccountAuthenticatorActivity 扩展常规的 Activity 而不是 AppCompatActivity 。

The login Activity requires to extend AccountAuthenticatorActivity, the issue starts here: AccountAuthenticatorActivity extends the regular Activity and not AppCompatActivity.

使用常规的 Activity 导致活动而没有 ActionBar 。我想使用 AccountAuthenticatorActivity 并使用 ActionBar 。

Using the regular Activity in AppCompat results in a Activity without ActionBar. I want to use AccountAuthenticatorActivity AND having an ActionBar.

推荐答案

键是 AppCompatDelegate ，我的代码基于 AppCompatPreferenceActivity 类由Android Studio生成：

The key is AppCompatDelegate, my code is based on the AppCompatPreferenceActivity class generated by Android Studio:

@SuppressWarnings("unused")
public class AppCompatAuthActivity extends AccountAuthenticatorActivity {

    private AppCompatDelegate mDelegate;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        getDelegate().installViewFactory();
        getDelegate().onCreate(savedInstanceState);
        super.onCreate(savedInstanceState);
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        getDelegate().onPostCreate(savedInstanceState);
    }

    public ActionBar getSupportActionBar() {
        return getDelegate().getSupportActionBar();
    }

    public void setSupportActionBar(@Nullable Toolbar toolbar) {
        getDelegate().setSupportActionBar(toolbar);
    }

    @Override
    @NonNull
    public MenuInflater getMenuInflater() {
        return getDelegate().getMenuInflater();
    }

    @Override
    public void setContentView(@LayoutRes int layoutResID) {
        getDelegate().setContentView(layoutResID);
    }

    @Override
    public void setContentView(View view) {
        getDelegate().setContentView(view);
    }

    @Override
    public void setContentView(View view, ViewGroup.LayoutParams params) {
        getDelegate().setContentView(view, params);
    }

    @Override
    public void addContentView(View view, ViewGroup.LayoutParams params) {
        getDelegate().addContentView(view, params);
    }

    @Override
    protected void onPostResume() {
        super.onPostResume();
        getDelegate().onPostResume();
    }

    @Override
    protected void onTitleChanged(CharSequence title, int color) {
        super.onTitleChanged(title, color);
        getDelegate().setTitle(title);
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        getDelegate().onConfigurationChanged(newConfig);
    }

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

    @Override
    protected void onDestroy() {
        super.onDestroy();
        getDelegate().onDestroy();
    }

    public void invalidateOptionsMenu() {
        getDelegate().invalidateOptionsMenu();
    }

    private AppCompatDelegate getDelegate() {
        if (mDelegate == null) {
            mDelegate = AppCompatDelegate.create(this, null);
        }
        return mDelegate;
    }

}

AppCompatDelegate 是将 ActionBar 添加到任何常规 Activity （例如 PreferenceActivity ）。

The AppCompatDelegate is the key to add ActionBar to ANY regular Activity (for example PreferenceActivity).

别忘了您的活动必须扩展 AppCompatAuthActivity

Don't forget your activity must extend AppCompatAuthActivity.

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