uu-android/WeiChat/src/main/java/com/sk/weichat/view/DataLoadView.java

package com.sk.weichat.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.sk.weichat.R;

public class DataLoadView extends LinearLayout {
	
	public DataLoadView(Context context) {
		super(context);
		initView();
	}

	public DataLoadView(Context context, AttributeSet attrs) {
		super(context, attrs);
		initView();
	}

	public DataLoadView(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
		initView();
	}

	private ProgressBar mLoadProgressBar;
	private TextView mLoadFailedTv;
	private static final int STATUS_NONE = 0;
	private static final int STATUS_LOADING = 1;
	private static final int STATUS_FIALED = 2;
	private static final int STATUS_ERROR= 3;
	private int status;

	private void initView() {
		LayoutInflater.from(getContext()).inflate(R.layout.layout_data_load, this);
		mLoadProgressBar = (ProgressBar) findViewById(R.id.load_progress_bar);
		mLoadFailedTv = (TextView) findViewById(R.id.load_failed_tv);
		status = STATUS_NONE;
		mLoadProgressBar.setVisibility(View.GONE);
		mLoadFailedTv.setVisibility(View.GONE);
		mLoadFailedTv.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				if (status != STATUS_FIALED) {
					return;
				}
				if (mLoadingEvent != null) {
					showLoading();
					mLoadingEvent.load();
				}
			}
		});
	}

	public static interface LoadingEvent {
		void load();
	}

	private LoadingEvent mLoadingEvent;

	public void setLoadingEvent(LoadingEvent loadingEvent) {
		mLoadingEvent = loadingEvent;
	}

	public void showLoading() {
		status = STATUS_LOADING;
		mLoadProgressBar.setVisibility(View.VISIBLE);
		mLoadFailedTv.setVisibility(View.GONE);
	}
	
	public void showSuccess() {
		status = STATUS_NONE;
		setVisibility(View.GONE);
		mLoadProgressBar.setVisibility(View.GONE);
		mLoadFailedTv.setVisibility(View.GONE);
	}

	public void showFailed() {
		status = STATUS_FIALED;
		mLoadProgressBar.setVisibility(View.GONE);
		mLoadFailedTv.setVisibility(View.VISIBLE);
	}
	public void showError(String errorMsg){
		status = STATUS_ERROR;
		mLoadProgressBar.setVisibility(View.GONE);
		mLoadFailedTv.setVisibility(View.VISIBLE);
		mLoadFailedTv.setText(errorMsg);
	}
}