Java &引用;“重画”;要更改选项的LinearLayout视图
我试图将属性更改为customJava &引用;“重画”;要更改选项的LinearLayout视图,java,android,android-layout,android-linearlayout,builder,Java,Android,Android Layout,Android Linearlayout,Builder,我试图将属性更改为customLinearLayoutclass,我将选项设置为class with: MyBuilder option = new MyBuilder.Builder() .image(...) .setCardRadius(...) .build()); 然后我调用main活动 MyObject obj = (MyObject) findViewById(R.id.myObject); obj.init(context, option); 但是,如果我使用不同的选项多次
LinearLayout
class,我将选项设置为class with:
MyBuilder option = new MyBuilder.Builder()
.image(...)
.setCardRadius(...)
.build());
然后我调用main活动
MyObject obj = (MyObject) findViewById(R.id.myObject);
obj.init(context, option);
但是,如果我使用不同的选项多次调用obj.init(…)
,则生成器设置了旧值,因此视图无法正确更改属性
所以我的问题是:我可以在初始化新对象之前重置Builder
oLinearLayout
这是我的线性布局。java:
public class MyObject extends LinearLayout{
CardView card;
ImageView image;
float cardRadiusAttr;
View rootView;
AttributeSet attributeSet;
public void init(final Context context, final MyBuilder option){
if(option != null)
{
/*
Get attribute from XML
*/
TypedArray ta = context.obtainStyledAttributes(attributeSet, R.styleable.Card, 0, 0);
try {
cardRadiusAttr = ta.getDimension(R.styleable.Card_c_cardRadius, option.getCardRadius());
} finally {
ta.recycle();
}
/*
Set up xml object.
*/
card = (CardView) findViewById(R.id.card);
image = (ImageView) findViewById(R.id.image);
card.setRadius(cardRadiusAttr);
/**
* Check if Option is set
*/
if (option.isImage() != null) {
//Set Image
}
}else{
Log.e("Initialization", "Option View not initialize!");
}
}
public MyObject(Context context, AttributeSet attrs) {
super(context, attrs);
/*
Inflater custom layout to view.
*/
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rootView = inflater.inflate(R.layout.Card, this, true);
attributeSet = attrs;
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
}
}
这是MyBuilder.java
public class MyBuilder {
private int mImage;
private float mCardRadius = 4f;
private MyBuilder(Builder builder)
{
mImage = builder.mImage;
mCardRadius = builder.mCardRadius;
}
public static class Builder{
private int mImage;
private float mCardRadius = 4f;
public Builder setCardRadius(float radius)
{
if(radius <= 0)
{
Log.e("CardRadius", "Impossible to set Card Radius lower than 0! Please Check it");
}
else {
mCardRadius = radius;
}
return this;
}
public Builder image(int image) {
if(image == 0)
{
Log.e("Image", "Impossible to set Image to 0! Please Check it");
}
else {
mImage = image;
}
return this;
}
public MyBuilder build() {
return new MyBuilder(this);
}
}
public int getImage() {
return mImage;
}
public float getCardRadius() {
return mCardRadius;
}
}
公共类MyBuilder{
私人图像;
专用浮点数mCardRadius=4f;
私人MyBuilder(生成器生成器)
{
mImage=builder.mImage;
mCardRadius=builder.mCardRadius;
}
公共静态类生成器{
私人图像;
专用浮点数mCardRadius=4f;
公共生成器setCardRadius(浮动半径)
{
如果(半径我最终发现了问题
在MyObject
的init
方法中,您必须在上次使用后清理视图
在这种特殊情况下,首先,您传递一组选项。在此基础上,View正在调整其控件的可见性(使按钮1
,按钮2
,等等可见)。但当您传递另一组选项时,您必须删除之前所做的所有更改。(即隐藏按钮1
,按钮2
等,并让视图再次调整其控件的可见性
)你确定构建器使用了旧值吗?或者视图没有根据新参数重新绘制?我确定构建器有旧参数@CristianHoldunu请显示整个自定义线性布局,它是简化的@ligiI不明白:MyBuilder
是什么?MyObject
是什么?如何“调用多次obj.init”?到目前为止,我最好的猜测是MyBuilder
中的问题。您的选项对象保持不变。您节省了我的时间,先生!