如何在单个preferenceactivity中实现多个SeekbarpReference
就像均衡器将有多个seekbar一样,我想实现多个seekbarpferences,需要帮助才能实现 我已经实现了单seekbar,不知道如何处理多个视图 我的单seekbarpreference代码如何在单个preferenceactivity中实现多个SeekbarpReference,seekbarpreference,Seekbarpreference,就像均衡器将有多个seekbar一样,我想实现多个seekbarpferences,需要帮助才能实现 我已经实现了单seekbar,不知道如何处理多个视图 我的单seekbarpreference代码 public SeekBarPreference(Context context, AttributeSet attrs) { super(context, attrs); initPreference(context, attrs); } pub
public SeekBarPreference(Context context, AttributeSet attrs) {
super(context, attrs);
initPreference(context, attrs);
}
public SeekBarPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initPreference(context, attrs);
}
private void initPreference(Context context, AttributeSet attrs) {
setValuesFromXml(attrs);
mSeekBar2 = new SeekBar(context, attrs);
mSeekBar2.setMax(mMaxValue - mMinValue);
mSeekBar2.setOnSeekBarChangeListener(this);
mSeekBar1 = new SeekBar(context, attrs);
mSeekBar1.setMax(mMaxValue - mMinValue);
mSeekBar1.setOnSeekBarChangeListener(this);
}
private void setValuesFromXml(AttributeSet attrs) {
mMaxValue = attrs.getAttributeIntValue(ANDROIDNS, "max", 100);
mMinValue = attrs.getAttributeIntValue(ROBOBUNNYNS, "min", 0);
mUnitsLeft = getAttributeStringValue(attrs, ROBOBUNNYNS, "unitsLeft",
"");
String units = getAttributeStringValue(attrs, ROBOBUNNYNS, "units", "");
mUnitsRight = getAttributeStringValue(attrs, ROBOBUNNYNS, "unitsRight",
units);
try {
String newInterval = attrs.getAttributeValue(ROBOBUNNYNS,
"interval");
if (newInterval != null)
mInterval = Integer.parseInt(newInterval);
} catch (Exception e) {
Log.e(TAG, "Invalid interval value", e);
}
}
private String getAttributeStringValue(AttributeSet attrs,
String namespace, String name, String defaultValue) {
String value = attrs.getAttributeValue(namespace, name);
if (value == null)
value = defaultValue;
return value;
}
@Override
protected View onCreateView(ViewGroup parent) {
RelativeLayout layout = null;
try {
LayoutInflater mInflater = (LayoutInflater) getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
layout = (RelativeLayout) mInflater.inflate(
R.layout.seek_bar_preference, parent, false);
} catch (Exception e) {
Log.e(TAG, "Error creating seek bar preference", e);
}
return layout;
}
@Override
public void onBindView(View view) {
super.onBindView(view);
try {
// move our seekbar to the new view we've been given
ViewParent mSeekBar2oldContainer = mSeekBar2.getParent();
ViewParent oldContainer = mSeekBar1.getParent();
ViewGroup newContainer = (ViewGroup) view
.findViewById(R.id.seekBarPrefBarContainer);
if (oldContainer != newContainer) {
// remove the seekbar from the old view
if (oldContainer != null) {
((ViewGroup) oldContainer).removeView(mSeekBar1);
((ViewGroup) oldContainer).removeView(mSeekBar2);
}
// remove the existing seekbar (there may not be one) and add
// ours
newContainer.removeAllViews();
newContainer.addView(mSeekBar1,
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
newContainer.addView(mSeekBar2,
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
}
} catch (Exception ex) {
Log.e(TAG, "Error binding view: " + ex.toString());
}
updateView(view);
}
/**
* Update a SeekBarPreference view with our current state
*
* @param view
*/
protected void updateView(View view) {
try {
RelativeLayout layout = (RelativeLayout) view;
mStatusText = (TextView) layout.findViewById(R.id.seekBarPrefValue);
mStatusText.setText(String.valueOf(mCurrentValue));
mStatusText.setMinimumWidth(30);
mSeekBar1.setProgress(mCurrentValue - mMinValue);
mSeekBar2.setProgress(mCurrentValue - mMinValue);
TextView unitsRight = (TextView) layout
.findViewById(R.id.seekBarPrefUnitsRight);
unitsRight.setText(mUnitsRight);
TextView unitsLeft = (TextView) layout
.findViewById(R.id.seekBarPrefUnitsLeft);
unitsLeft.setText(mUnitsLeft);
} catch (Exception e) {
Log.e(TAG, "Error updating seek bar preference", e);
}
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
int newValue = progress + mMinValue;
if (newValue > mMaxValue)
newValue = mMaxValue;
else if (newValue < mMinValue)
newValue = mMinValue;
else if (mInterval != 1 && newValue % mInterval != 0)
newValue = Math.round(((float) newValue) / mInterval) * mInterval;
// change rejected, revert to the previous value
if (!callChangeListener(newValue)) {
seekBar.setProgress(mCurrentValue - mMinValue);
return;
}
// change accepted, store it
mCurrentValue = newValue;
mStatusText.setText(String.valueOf(newValue));
persistInt(newValue);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
notifyChanged();
}
@Override
protected Object onGetDefaultValue(TypedArray ta, int index) {
int defaultValue = ta.getInt(index, DEFAULT_VALUE);
return defaultValue;
}
@Override
protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
if (restoreValue) {
mCurrentValue = getPersistedInt(mCurrentValue);
} else {
int temp = 0;
try {
temp = (Integer) defaultValue;
} catch (Exception ex) {
Log.e(TAG, "Invalid default value: " + defaultValue.toString());
}
persistInt(temp);
mCurrentValue = temp;
}
}
}
public SeekBarPreference(上下文、属性集属性){
超级(上下文,attrs);
initPreference(上下文、属性);
}
公共SeekBarPreference(上下文、属性集属性、int-defStyle){
超级(上下文、属性、定义样式);
initPreference(上下文、属性);
}
私有void initPreference(上下文上下文、属性集属性){
setValuesFromXml(attrs);
mSeekBar2=新SeekBar(上下文,属性);
mSeekBar2.setMax(mMaxValue-mMinValue);
mseekbarh2.setonseekbarchaneglistener(这个);
mSeekBar1=新SeekBar(上下文,属性);
mSeekBar1.setMax(mMaxValue-mMinValue);
mSeekBar1.setonseekbarchaneglistener(此);
}
私有void setValuesFromXml(AttributeSet attrs){
mMaxValue=attrs.getAttributeIntValue(ANDROIDNS,“最大”,100);
mMinValue=attrs.getAttributeIntValue(robobunyns,“min”,0);
munitsleet=getAttributeStringValue(attrs,robobunyns,“unitsLeft”,
"");
字符串单位=getAttributeStringValue(attrs、robobunyns、“单位”、“单位”);
munitsrright=getAttributeStringValue(属性、robobunyns,“unitsRight”,
单位);
试一试{
字符串newInterval=attrs.getAttributeValue(robobunyns,
“间隔”);
if(newInterval!=null)
mInterval=Integer.parseInt(newInterval);
}捕获(例外e){
Log.e(标记“无效间隔值”,e);
}
}
私有字符串getAttributeStringValue(AttributeSet attrs,
字符串名称空间、字符串名称、字符串默认值){
字符串值=attrs.getAttributeValue(名称空间,名称);
如果(值==null)
值=默认值;
返回值;
}
@凌驾
受保护的视图onCreateView(视图组父级){
RelativeLayout布局=空;
试一试{
LayoutInflater mInflater=(LayoutInflater)getContext()
.getSystemService(上下文布局\充气机\服务);
布局=(相对长度)最小平坦度。充气(
R.layout.seek\u bar\u首选项,父项,false);
}捕获(例外e){
Log.e(标记“创建搜索条首选项时出错”,e);
}
返回布局;
}
@凌驾
公共无效onBindView(视图){
super.onBindView(视图);
试一试{
//将我们的搜索杆移到我们得到的新视图
ViewParent mSeekBar2oldContainer=mSeekBar2.getParent();
ViewParent oldContainer=mSeekBar1.getParent();
视图组newContainer=(视图组)视图
.findViewById(R.id.seekBarPrefBarContainer);
如果(旧容器!=新容器){
//从旧视图中删除seekbar
if(oldContainer!=null){
((视图组)oldContainer.removeView(mSeekBar1);
((视图组)oldContainer).removeView(mSeekBar2);
}
//删除现有seekbar(可能没有),然后添加
//我们的
newContainer.removeallview();
newContainer.addView(mSeekBar1,
ViewGroup.LayoutParams.FILL\u父级,
ViewGroup.LayoutParams.WRAP_内容);
newContainer.addView(mSeekBar2,
ViewGroup.LayoutParams.FILL\u父级,
ViewGroup.LayoutParams.WRAP_内容);
}
}捕获(例外情况除外){
Log.e(标记,“错误绑定视图:”+ex.toString());
}
更新视图(视图);
}
/**
*使用当前状态更新SeekBarPreference视图
*
*@param视图
*/
受保护的void updateView(视图){
试一试{
RelativeLayout布局=(RelativeLayout)视图;
mStatusText=(TextView)layout.findviewbyd(R.id.seekBarPrefValue);
mStatusText.setText(String.valueOf(mccurrentValue));
mStatusText.setMinimumWidth(30);
mSeekBar1.setProgress(mCurrentValue-mMinValue);
mSeekBar2.setProgress(mCurrentValue-mMinValue);
TextView unitsRight=(TextView)布局
.findViewById(R.id.seekBarPrefUnitsRight);
unitsRight.setText(市政权);
TextView unitsLeft=(TextView)布局
.findviewbyd(R.id.seekbarprefinitsleft);
unitsLeft.setText(市政左图);
}捕获(例外e){
Log.e(标记“错误更新搜索条首选项”,e);
}
}
@凌驾
更改了公共进程无效(SeekBar SeekBar,int progress,
布尔值(用户){
int newValue=进度+mmin值;
如果(newValue>mMaxValue)
newValue=mMaxValue;
else if(新值private void initPreference(Context context, AttributeSet attrs) {
setValuesFromXml(attrs);
mSeekBar2 = new SeekBar(context, attrs);
mSeekBar2.setMax(mMaxValue - mMinValue);
mSeekBar2.setOnSeekBarChangeListener(this);
mSeekBar1 = new SeekBar(context, attrs);
mSeekBar1.setMax(mMaxValue - mMinValue);
mSeekBar1.setOnSeekBarChangeListener(this);
}
@Override
protected void onBindView(View view) {
super.onBindView(view);
mSeekBar2 = new SeekBar(context, attrs);
mSeekBar2.setMax(mMaxValue - mMinValue);
mSeekBar2.setOnSeekBarChangeListener(this);
mSeekBar1 = new SeekBar(context, attrs);
mSeekBar1.setMax(mMaxValue - mMinValue);
mSeekBar1.setOnSeekBarChangeListener(this);
}