How to add imageview on right hand side of action

问题:

I want to add image view on action bar right hand side.I tried to do that but i couldn't. Can anyone help me?

This is my image view xml

 <ImageView
        android:id="@+id/imageView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:src="@drawable/adnace_search_i" />

This is the image of action bar that i want to create.

回答1:

try this...

    ActionBar actionBar = getActionBar();
    actionBar.setDisplayOptions(actionBar.getDisplayOptions()
            | ActionBar.DISPLAY_SHOW_CUSTOM);
    ImageView imageView = new ImageView(actionBar.getThemedContext());
    imageView.setScaleType(ImageView.ScaleType.CENTER);
    imageView.setImageResource(R.drawable.adnace_search_i);
    ActionBar.LayoutParams layoutParams = new ActionBar.LayoutParams(
            ActionBar.LayoutParams.WRAP_CONTENT,
            ActionBar.LayoutParams.WRAP_CONTENT, Gravity.RIGHT
                    | Gravity.CENTER_VERTICAL);
    layoutParams.rightMargin = 40;
    imageView.setLayoutParams(layoutParams);
    actionBar.setCustomView(imageView);

回答2:

Use

ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayShowCustomEnabled(true);

LayoutInflater inflator = (LayoutInflater) this .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflator.inflate(R.layout.custom_imageview, null);

actionBar.setCustomView(v);

Code for Custom ImageView

<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"
android:id="@+id/layout">

<ImageView
    android:id="@+id/imageView4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:layout_alignParentTop="true"
    android:src="@drawable/adnace_search_i" />
</RelativeLayout>

回答3:

You don't need an ImageView for this. Using a new item using Icon for your image will be the smartest solution.

Add this item to your menu.xml:

<item
    android:title="@string/action_scanner"
    android:orderInCategory="79"
    android:icon="@drawable/adnace_search_i"
    android:showAsAction="ifRoom|withText" />

Instantiate the menu in onCreateOptionsMenu and implement it in onOptionsItemSelected.

回答4:

Add this line to the menu.xml in the res/menu/menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
 <!-- Search, should appear as action button -->
 <item android:id="@+id/action_search"
      android:icon="@drawable/ic_action_search"
      android:title="@string/action_search"
      yourapp:showAsAction="ifRoom"  />
 ...
 </menu>

You can see more actionBar property over android developer tutorials

回答5:

Use this layout. I just used that on API 28

<android.support.design.widget.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/AppTheme.AppBarOverlay">

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="?attr/colorPrimary"
                app:popupTheme="@style/AppTheme.PopupOverlay">

                <RelativeLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content">

                    <ImageView
                        android:layout_width="24dp"
                        android:layout_height="24dp"
                        android:onClick="makeToast"
                        android:layout_alignParentEnd="true"
                        android:src="@drawable/ic_flag" />
                </RelativeLayout>
            </android.support.v7.widget.Toolbar>