AssistantView.java
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package com.ys.yslibrary.ui.custom;
import android.content.Context;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.LayoutAnimationController;
import android.widget.FrameLayout;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.databinding.DataBindingUtil;
import androidx.databinding.ViewDataBinding;
import com.ys.yslibrary.R;
import com.ys.yslibrary.databinding.AssistantViewBinding;
public class AssistantView extends FrameLayout {
private AbsViewAdapter adapter;
private LayoutInflater inflater;
private AssistantViewBinding binding;
private LayoutAnimationController loadLayoutAnimation;
private ViewDataChangeListener viewDataChangeListener;
private BaseViewHolder baseViewHolder;
public AssistantView(@NonNull Context context) {
super(context);
init();
}
public AssistantView(@NonNull Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
init();
}
public AssistantView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public void init() {
viewDataChangeListener = new ViewDataChangeListener();
inflater = LayoutInflater.from(getContext());
binding = DataBindingUtil.inflate(inflater, R.layout.assistant_view, this, true);
}
@Override
public void setLayoutAnimation(LayoutAnimationController controller) {
this.loadLayoutAnimation = controller;
}
public void setAdapter(AbsViewAdapter adapter) {
if (adapter == null) {
return;
}
this.adapter = adapter;
adapter.setAdapterDataChangeListener(viewDataChangeListener);
adapter.notifyAllChange();
}
public void setOnClickBlankBgListener(View.OnClickListener onClickListener) {
if (onClickListener == null) {
return;
}
binding.viewBg.setOnClickListener(onClickListener);
}
private class ViewDataChangeListener implements AbsViewAdapter.AdapterDataChangeListener {
@Override
public void notifyAllChange() {
if (baseViewHolder != null && baseViewHolder.getChildView() != null) {
binding.flRoot.removeView(baseViewHolder.getChildView());
}
baseViewHolder = adapter.onCreateViewHolder(AssistantView.this, adapter.getViewType());
if (baseViewHolder != null) {
adapter.onBindViewHolder(baseViewHolder, adapter.getViewType());
View childView = baseViewHolder.getChildView();
if (childView != null) {
binding.flRoot.addView(childView);
FrameLayout.LayoutParams params = (LayoutParams) childView.getLayoutParams();
params.gravity = Gravity.BOTTOM;
childView.setLayoutParams(params);
if (loadLayoutAnimation != null) {
binding.flRoot.setLayoutAnimation(loadLayoutAnimation);
}
}
}
}
@Override
public void notifyDataChange() {
if (adapter != null && baseViewHolder != null) {
adapter.onBindViewHolder(baseViewHolder, adapter.getViewType());
}
}
}
public static abstract class AbsViewAdapter {
private AdapterDataChangeListener adapterDataChangeListener;
abstract BaseViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType);
abstract void onBindViewHolder(@NonNull BaseViewHolder holder, int viewType);
public void notifyAllChange() {
if (adapterDataChangeListener != null) {
adapterDataChangeListener.notifyAllChange();
}
}
public void notifyDataChange() {
if (adapterDataChangeListener != null) {
adapterDataChangeListener.notifyDataChange();
}
}
public int getViewType() {
return -1;
}
public interface AdapterDataChangeListener {
void notifyAllChange();
void notifyDataChange();
}
public void setAdapterDataChangeListener(AdapterDataChangeListener adapterDataChangeListener) {
this.adapterDataChangeListener = adapterDataChangeListener;
}
}
public static class AbsAssistantHolder {
private View childView;
public AbsAssistantHolder(View childView) {
this.childView = childView;
}
public View getChildView() {
return childView;
}
}
public static class BaseViewHolder<B extends ViewDataBinding> extends AbsAssistantHolder {
private final B binding;
public BaseViewHolder(B binding) {
super(binding.getRoot());
this.binding = binding;
}
public B getBinding() {
return binding;
}
}
}