Android 使用selector改变按钮状态实例详解

< selector xmlns:android="http://schemas.android.com/apk/res/android">< item android:state_pressed="true" android:drawable="@drawable/arrow_pressed" />< item android:drawable="@drawable/arrow_normal" />< item android:state_checked="true" android:drawable="@drawable/arrow_pressed" />< /selector>

< ImageView android:layout_width="wrap_content"android:layout_height="@android:dimen/app_icon_size"android:layout_alignParentRight="true" android:scaleType="fitCenter"android:layout_gravity="center" android:src="@drawable/imageselector"android:clickable="true" android:focusable="true" android:id="@+id/blacklistImageView"android:layout_marginRight="10dip" />

blacklistImageView.setPressed(true); blacklistImageView.setChecked(true);