AppCompat的AccountAuthenticatorActivity

Question

我正在按照教程制作验证器:http://blog.udinic.com/2013/04/24/write-your-own-android-authenticator/

登录Activity需要扩展AccountAuthenticatorActivity,问题从这里开始:AccountAuthenticatorActivity扩展常规Activity而不是AppCompatActivity.

Activity在AppCompat中使用常规会导致Activity无ActionBar.我想使用AccountAuthenticatorActivity和有一个ActionBar.

Answer 1

我认为这不是真正的解决方案。如果您正在开发带有支持库的应用程序，将 AppCompatActivities、Fragments 等与标准程序混合使用并不是一个好主意。

我创建了一个AccountAuthenticatorAppCompatActivity扩展AppCompatActivity，然后从 API 复制/粘贴代码AccountAuthenticatorActivity，它似乎可以正常工作。

public class AccountAuthenticatorAppCompatActivity extends AppCompatActivity {
private AccountAuthenticatorResponse mAccountAuthenticatorResponse = null;
private Bundle mResultBundle = null;

public final void setAccountAuthenticatorResult(Bundle result) {
    mResultBundle = result;
}

protected void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    mAccountAuthenticatorResponse =
            getIntent().getParcelableExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE);

    if (mAccountAuthenticatorResponse != null) {
        mAccountAuthenticatorResponse.onRequestContinued();
    }
}

public void finish() {
    if (mAccountAuthenticatorResponse != null) {
        // send the result bundle back if set, otherwise send an error.
        if (mResultBundle != null) {
            mAccountAuthenticatorResponse.onResult(mResultBundle);
        } else {
            mAccountAuthenticatorResponse.onError(AccountManager.ERROR_CODE_CANCELED,
                    "canceled");
        }
        mAccountAuthenticatorResponse = null;
    }
    super.finish();
}

}

希望它对某人有所帮助。

Answer 2

关键是AppCompatDelegate,我的代码基于AppCompatPreferenceActivityAndroid Studio生成的类:

@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;
    }

}

这AppCompatDelegate是添加ActionBar到任何常规Activity(例如PreferenceActivity)的关键.

不要忘记你的活动必须延伸AppCompatAuthActivity.