【发布时间】:2018-01-09 13:56:09
【问题描述】:
我使用自己的Spinner 和自定义的SeekBar。在 API 23 或更高版本上一切正常,但在低于 22 的 Android 上,它完全不起作用。
在 EditText Spinner 更改值处点击一个值并像魅力一样工作,更改 Spinner 选定值会更改 SeekBar 主题。
Spinner 上没有任何操作。
<SeekBar
android:id="@+id/seekBarVolt"
android:layout_width="0dp"
android:layout_height="24dp"
android:layout_weight="1"
android:enabled="false"
android:progressDrawable="@drawable/custom_seekbar"
android:thumb="@drawable/custom_seekbar_thumb" />
点击微调器之前
点击微调器后
微调器代码:
public class FSSpinner extends AppCompatSpinner {
public FSSpinner(Context context) {
super(context);
}
public FSSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
}
public FSSpinner(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public void
setSelection(int position, boolean animate) {
boolean sameSelected = position == getSelectedItemPosition();
super.setSelection(position, animate);
if (sameSelected) {
OnItemSelectedListener onItemSelectedListener = getOnItemSelectedListener();
if (onItemSelectedListener != null) {
onItemSelectedListener.onItemSelected(this, getSelectedView(), position, getSelectedItemId());
}
}
}
@Override
public void
setSelection(int position) {
boolean sameSelected = position == getSelectedItemPosition();
super.setSelection(position);
if (sameSelected) {
OnItemSelectedListener onItemSelectedListener = getOnItemSelectedListener();
if (onItemSelectedListener != null) {
onItemSelectedListener.onItemSelected(this, getSelectedView(), position, getSelectedItemId());
}
}
}
}
搜索栏 xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@android:id/background"
android:gravity="center_vertical">
<shape
android:shape="rectangle"
android:tint="#77C344">
<size android:height="30dp" />
<solid android:color="#77C344" />
</shape>
</item>
<item
android:id="@android:id/progress"
android:gravity="center_vertical">
<scale android:scaleWidth="100%">
<selector>
<item
android:drawable="@android:color/transparent"
android:state_enabled="false" />
<item>
<shape
android:shape="rectangle"
android:tint="#77C344">
<size android:height="30dp" />
<solid android:color="#77C344" />
</shape>
</item>
</selector>
</scale>
</item>
</layer-list>
SeekBarThumb.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
android:thickness="4dp"
android:tint="#000"
android:useLevel="false">
<solid android:color="#000" />
<size
android:width="12dp"
android:height="32dp" />
</shape>
【问题讨论】: