我正在使用AppCompat操作栏,我想改变我在操作栏中使用的搜索视图的背面图标。
我试着设置图标的样式:
<item name="homeAsUpIndicator">@drawable/myBackButton</item>
,但我想在用户选择搜索视图时以编程方式设置另一个。有什么好主意吗?
要自定义SearchView "up"图标,可以使用style属性:
collapseIcon="@drawable/ic_discard_icon"
工具栏布局:
<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"
app:collapseIcon="@drawable/ic_discard_icon"/>
或者您可以将此属性移动到工具栏样式。如你所愿
试试下面的代码片段:
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
// get the parent view of home (app icon) imageview
ViewGroup home = (ViewGroup) findViewById(android.R.id.home).getParent();
// get the first child (up imageview)
( (ImageView) home.getChildAt(0) )
// change the icon according to your needs
.setImageDrawable(getResources().getDrawable(R.drawable.custom_icon_up));
} else {
// get the up imageview directly with R.id.up
( (ImageView) findViewById(R.id.up) )
.setImageDrawable(getResources().getDrawable(R.drawable.custom_icon_up));
}
您可以像这样更改后退图标的背景
Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initToolbar();
}
private void initToolbar() {
toolbar = (Toolbar) findViewById(R.id.tbMaster);
setSupportActionBar(toolbar);
if (toolbar != null) {
toolbar.setBackgroundColor(getResources().getColor(R.color.base_color));
getSupportActionBar().setTitle("Title");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.image);
}
}