app:srcCompat
with ImageView
allows for backward compatible use of vector drawables. But how can you use them with other View
s besides ImageView
? For example, the TextView
attributes like android:drawableLeft
.
Also using the vector drawable as an android:icon
with MenuItem
caused a crash with the following exception:
Fatal Exception: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:626)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702)
at android.view.LayoutInflater.inflate(LayoutInflater.java:470)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.support.v7.view.menu.MenuItemImpl.setActionView(MenuItemImpl.java:621)
at android.support.v7.view.menu.MenuItemImpl.setActionView(MenuItemImpl.java:40)
at android.support.v4.view.MenuItemCompat.setActionView(MenuItemCompat.java:310)
at android.support.v7.view.SupportMenuInflater$MenuState.setItem(SupportMenuInflater.java:465)
at android.support.v7.view.SupportMenuInflater$MenuState.addItem(SupportMenuInflater.java:479)
at android.support.v7.view.SupportMenuInflater.parseMenu(SupportMenuInflater.java:196)
at android.support.v7.view.SupportMenuInflater.inflate(SupportMenuInflater.java:118)
at com.example.niceapp.context.main.MainActivity.onCreateOptionsMenu(MainActivity.java:101)
at android.app.Activity.onCreatePanelMenu(Activity.java:2578)
With Support Library 23.2.0, how can this issue be addressed?
For AppCompat version 23.3.0 where no work solution via selector XML (razzledazzle's accepted answer) we can do this by programmatically:
activity_main.xml
<android.support.v7.widget.AppCompatImageButton
android:id="@+id/btnEnter"
/>
MainActivity.java
AppCompatImageButton image = (AppCompatImageButton) findViewById(R.id.btnEnter);
if (image != null) {
VectorDrawableCompat vcAccept = VectorDrawableCompat.create(getResources(), R.drawable.vc_accept, getTheme());
VectorDrawableCompat vcAcceptWhite = VectorDrawableCompat.create(getResources(), R.drawable.vc_accept_white, getTheme());
StateListDrawable stateList = new StateListDrawable();
stateList.addState(new int[]{android.R.attr.state_focused, -android.R.attr.state_pressed}, vcAccept);
stateList.addState(new int[]{android.R.attr.state_focused, android.R.attr.state_pressed}, vcAcceptWhite);
stateList.addState(new int[]{-android.R.attr.state_focused, android.R.attr.state_pressed}, vcAcceptWhite);
stateList.addState(new int[]{}, vcAccept);
image.setImageDrawable(stateList);
}
This code is equivalent for this selector xml:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/vc_accept" />
<item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/vc_accept_white" />
<item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/vc_accept_white" />
<item android:drawable="@drawable/vc_accept" />
</selector>
If the vector drawable is not shown using API 23, you'll need to convert the VectorDrawable
to a regular Drawable
first. If you want to use setCompoundDrawablesWithIntrinsicBounds
you'll need to do this, but for StateListDrawable I didn't need to.
Drawable icon;
if (android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
icon = VectorDrawableCompat.create(getResources(), R.drawable.vc_icon, getContext().getTheme());
} else {
icon = getResources().getDrawable(R.drawable.vc_icon, getContext().getTheme());
}