问题
I got an activity with many fragments. When i change fragments i need to change also and my toolbar declared in MainActivity.class. My problem is that i include a layout and didnt find a method to change this layout. How to change toolbars layout in this case? MainActivity.class
@ContentView(R.layout.activity_main)
public class MainActivity extends RoboActionBarActivity {
@InjectView(R.id.tool_bar)
Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setToolBar();
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new SplashFragment())
.commit();
} else {
getSupportFragmentManager().beginTransaction()
.replace(R.id.container, new HomeFragment())
.commit();
}
}
private void setToolBar() {
setSupportActionBar(toolbar);
}
@Override
public void onAttachFragment(Fragment fragment) {
super.onAttachFragment(fragment);
String currentFragmentClass = fragment.getClass().getSimpleName();
if (currentFragmentClass.equals(getString(R.string.info_fragment))) {
//here i need to change and set onclicks
}
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
tools:context=".activities.MainActivity">
<include
android:id="@+id/tool_bar"
layout="@layout/tool_bar" />
<View
android:id="@+id/shadow_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="@+id/tool_bar"
android:background="#ad8c22" />
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/shadow_view"
tools:context=".activities.MainActivity"
tools:ignore="MergeRootFrame" />
</RelativeLayout>
tool_bar.xml
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorToolBar"
>
<RelativeLayout
android:id="@+id/toolbar_main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:onClick="toggleSlidingMenu"
android:src="@mipmap/icon_sliding_menu" />
<ImageView
android:id="@+id/app_logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:src="@mipmap/jammboree" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="@+id/app_logo"
android:padding="5dp">
<ImageView
android:id="@+id/hotlist_bell"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:contentDescription="bell"
android:gravity="center"
android:padding="7dp"
android:src="@mipmap/icon_my_cart" />
<TextView
android:id="@+id/hotlist_hot"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@id/hotlist_bell"
android:layout_alignTop="@id/hotlist_bell"
android:background="@drawable/rounded_square"
android:gravity="center"
android:minWidth="17sp"
android:padding="2dp"
android:text="2"
android:textColor="#ffffffff"
android:textSize="12sp" />
<TextView
android:id="@+id/myMoneyInMyPocket"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/hotlist_bell"
android:text="2000$"
android:textColor="#ffffff"
android:textSize="14sp"
android:textStyle="bold" />
</RelativeLayout>
</RelativeLayout>
</android.support.v7.widget.Toolbar>
回答1:
If I understood right, you want to change the toolbar whenever you change the Fragment the user is currently seeing, isn´t that right?
There is a very simple way to achieve this trough your XML. Let's say you want three different styled toolbars.
1) First, you create XML files for every toolbar you need.
2) Then you include every toolbar in to your activity_main.xml, like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
tools:context=".activities.MainActivity">
<include
android:id="@+id/toolbar1"
layout="@layout/tool_bar1"
android:visibility="visible" />
<include
android:id="@+id/toolbar2"
layout="@layout/tool_bar2"
android:visibility="gone" />
<include
android:id="@+id/toolbar3"
layout="@layout/tool_bar3"
android:visibility="gone" />
// Here is the rest of your XML code
</RelativeLayout>
See how all three toolbar includes have the visibility property?
Well, now you can toy with this property, and show/hide the desired toolbar whenever you want/need to.
For example:
RelativeLayout mLayout = (RelativeLayout) getActivity().findViewById(R.id.my_main_layout);
Toolbar mToolbar1 = (Toolbar) mLayout.findViewById(R.id.toolbar1);
mToolbar1.setVisibility(View.GONE);
Toolbar mToolbar2 = (Toolbar) mLayout.findViewById(R.id.toolbar2);
mToolbar2.setVisibility(View.GONE);
Toolbar mToolbar3 = (Toolbar) mLayout.findViewById(R.id.toolbar3);
mToolbar3.setVisibility(View.VISIBLE);
And just change which one are you making visible, according to your needs.
Hope this helps.
回答2:
I don`t think the method of @herrmartell is nice;
In my way,I have three Fragment in a Activity,I defined some different layout resources for a common toolbar xml,and load them in toolbar when I click different button; my code :
common_toolbar xml:
<?xml version="1.0" encoding="utf-8"?> <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="?attr/colorPrimary" android:theme="@style/ThemeOverlay.AppCompat.ActionBar"> <!-- your custom layout --> </android.support.v7.widget.Toolbar>activity_main_toolbar_common_view.xml
<TextView android:id="@+id/action_location" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="迪士尼...ˇ" android:textColor="@color/white" android:textSize="@dimen/larget_text_size" android:paddingLeft="10dp" android:layout_alignParentStart="true" android:layout_centerHorizontal="true" android:layout_centerVertical="true"/>activity_main_toolbar_mine_view.xml
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/mine" android:textSize="@dimen/big_text_size" android:textColor="@color/white" android:gravity="center" android:layout_centerInParent="true"/> <ImageView android:id="@+id/setting" android:layout_width="@dimen/toolbar_icon_size" android:layout_height="@dimen/toolbar_icon_size" android:src="@drawable/toolbar_setting" android:layout_alignParentRight="true" />switchToolbar() method in Activity:
public void switchToolbar(int layout) { if(currentToolbarLayout == layout){ return; } currentToolbarLayout = layout; View v = getLayoutInflater().inflate(layout,null); toolbar.removeAllViews(); toolbar.addView(v); switch (layout){ case R.layout.activity_main_toolbar_common_view: v.findViewById(R.id.action_location).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "跳到位置", Toast.LENGTH_SHORT).show(); } }); break; case R.layout.activity_main_toolbar_mine_view: v.findViewById(R.id.setting).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "跳到设置", Toast.LENGTH_SHORT).show(); } }); break; } }I render my toolbar view in the onCreate() method of Activity:
ButterKnife.bind(this); setSupportActionBar(toolbar); switchToolbar(R.layout.activity_main_toolbar_common_view);when I switch toolbar, I call:
switchToolbar(R.layout.activity_main_toolbar_mine_view);
来源：https://stackoverflow.com/questions/35467940/android-toolbar-change-layout