【发布时间】:2017-11-23 12:52:20
【问题描述】:
我已经尝试了一切来尝试让我的后退箭头在我的工具栏上工作,但我没有成功我已经尝试覆盖 onOptionsItemSelected 我还尝试了有关此线程的建议Up Navigation (Action Bar's back arrow) is not working for fragments 并没有成功。我也在处理片段。
注册活动
public class RegisterActivity extends AppCompatActivity implements View.OnClickListener {
private Toolbar toolbar;
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_register);
ButterKnife.bind(this);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case ( R.id.button_accept_tos ) :
/*
Fragment inputUserFragment = new AcceptAgreementFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
transaction.replace(R.id.main_activity, inputUserFragment);
transaction.addToBackStack(null);
transaction.commit();
*/
break;
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
清单
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".activity.MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".activity.RegisterActivity"
android:windowSoftInputMode="adjustPan|adjustResize"
android:screenOrientation="portrait">
</activity>
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".activity.MainActivity"
/>
</application>
和我的 activity_register xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="@color/ghostWhiteColor"
android:fitsSystemWindows="true"
tools:context="com.dae.market.dav.lux.activity.RegisterActivity">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:minHeight="?attr/actionBarSize"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:titleTextColor="@android:color/white"
app:navigationIcon="@drawable/ic_arrow_back_white_24dp"
android:background="?attr/colorPrimary">
<TextView
android:id="@+id/toolbar_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test"
android:textColor="@android:color/white"
style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
android:layout_gravity="center"
/>
</android.support.v7.widget.Toolbar>
<!--wizard>-->
<FrameLayout
android:id="@+id/fragment_register"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.design.widget.CoordinatorLayout>
【问题讨论】:
-
你的
onClick方法是否被调用过? (猜测注释掉的是调试) -
@Phix 是的,它被调用了
-
@user8924538 你解决了吗...?
-
@user8924538 您是否覆盖了
onBackPressed并删除了super.onBackPressed();?如果你这样做了,这将不起作用