FlexibleLayout.java
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package com.naji.xiaotao.cookbook.view;
import android.content.Context;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewStub;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.naji.xiaotao.R;
/**
* author pangchao
* created on 2017/5/20
* email fat_chao@163.com.
*/
public abstract class FlexibleLayout extends LinearLayout {
private View mLoadingView;
private View mNetworkErrorView;
private View mEmptyView;
private ViewGroup mSuccessView;
private ProgressBar mLoadingProgress;
private TextView mLoadingText;
private View title;
public FlexibleLayout(Context context) {
super(context);
setOrientation(VERTICAL);
setClipToPadding(true);
setFitsSystemWindows(true);
inflate(context, R.layout.layout_all, this);
mSuccessView = initNormalView();
title = mSuccessView.findViewWithTag("title");
LayoutParams lp = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
addView(mSuccessView, lp);
int childCount = mSuccessView.getChildCount();
Log.d("count---", String.valueOf(childCount));
}
public abstract ViewGroup initNormalView();
public void loadData() {
showPageWithState(State.Loading);
onLoad();
}
public abstract void onLoad();
public void showPageWithState(State status) {
if (status != State.Normal && title != null) {
String tag = (String) getChildAt(0).getTag();
if (TextUtils.equals(tag, "title")) {
//已经有标题栏
} else {
mSuccessView.removeView(title);
addView(title, 0);
}
}
switch (status) {
case Normal:
mSuccessView.setVisibility(VISIBLE);
int childCount = getChildCount();
Log.d("count--->", String.valueOf(childCount));
View childAt = mSuccessView.getChildAt(0);//有可能为空
if (childAt != null) {
String tag = (String) childAt.getTag();
if (!TextUtils.equals(tag, "title") && null != title) {
removeView(title);
mSuccessView.addView(title, 0);
}
}
if (mLoadingView != null) {
mLoadingView.setVisibility(GONE);
}
if (mNetworkErrorView != null) {
mNetworkErrorView.setVisibility(GONE);
}
if (mNetworkErrorView != null) {
mNetworkErrorView.setVisibility(GONE);
}
invalidate();
break;
case Loading:
mSuccessView.setVisibility(GONE);
if (mEmptyView != null) {
mEmptyView.setVisibility(GONE);
}
if (mNetworkErrorView != null) {
mNetworkErrorView.setVisibility(GONE);
}
if (mLoadingView == null) {
ViewStub viewStub = (ViewStub) findViewById(R.id.vs_loading);
mLoadingView = viewStub.inflate();
mLoadingProgress = (ProgressBar) mLoadingView.findViewById(R.id.loading_progress);
mLoadingText = (TextView) mLoadingView.findViewById(R.id.loading_text);
} else {
mLoadingView.setVisibility(VISIBLE);
}
mLoadingProgress.setVisibility(View.VISIBLE);
mLoadingText.setText("正在加载");
break;
case Empty:
mSuccessView.setVisibility(GONE);
if (mLoadingView != null) {
mLoadingView.setVisibility(GONE);
}
if (mNetworkErrorView != null) {
mNetworkErrorView.setVisibility(GONE);
}
if (mEmptyView == null) {
ViewStub viewStub = (ViewStub) findViewById(R.id.vs_end);
mEmptyView = viewStub.inflate();
} else {
mEmptyView.setVisibility(VISIBLE);
}
break;
case NetWorkError:
mSuccessView.setVisibility(GONE);
if (mLoadingView != null) {
mLoadingView.setVisibility(GONE);
}
if (mEmptyView != null) {
mEmptyView.setVisibility(GONE);
}
if (mNetworkErrorView == null) {
ViewStub viewStub = (ViewStub) findViewById(R.id.vs_error);
mNetworkErrorView = viewStub.inflate();
View btnRetry = mNetworkErrorView.findViewById(R.id.btn_retry);
btnRetry.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
onLoad();
}
});
} else {
mNetworkErrorView.setVisibility(VISIBLE);
}
break;
default:
break;
}
}
public enum State {
Normal, Empty, Loading, NetWorkError
}
}