ExceptionHandler.java

package com.ch_linghu.fanfoudroid.app;

import android.app.Activity;
import android.content.Intent;
import android.widget.Toast;

import com.ch_linghu.fanfoudroid.LoginActivity;
import com.ch_linghu.fanfoudroid.R;
import com.ch_linghu.fanfoudroid.fanfou.RefuseError;
import com.ch_linghu.fanfoudroid.http.HttpAuthException;
import com.ch_linghu.fanfoudroid.http.HttpException;
import com.ch_linghu.fanfoudroid.http.HttpRefusedException;
import com.ch_linghu.fanfoudroid.http.HttpServerException;

public class ExceptionHandler {

	private Activity mActivity;

	public ExceptionHandler(Activity activity) {
		mActivity = activity;
	}

	public void handle(HttpException e) {

		Throwable cause = e.getCause();
		if (null == cause)
			return;

		// Handle Different Exception

		if (cause instanceof HttpAuthException) {
			// 用户名/密码错误
			Toast.makeText(mActivity, R.string.error_not_authorized,
					Toast.LENGTH_LONG).show();
			Intent intent = new Intent(mActivity, LoginActivity.class);
			mActivity.startActivity(intent); // redirect to the login activity
		} else if (cause instanceof HttpServerException) {
			// 服务器暂时无法响应
			Toast.makeText(mActivity, R.string.error_not_authorized,
					Toast.LENGTH_LONG).show();
		} else if (cause instanceof HttpAuthException) {
			// FIXME: 集中处理用户名/密码验证错误，返回到登录界面
		} else if (cause instanceof HttpRefusedException) {
			// 服务器拒绝请求，如没有权限查看某用户信息
			RefuseError error = ((HttpRefusedException) cause).getError();
			switch (error.getErrorCode()) {
			// TODO: finish it
			case -1:
			default:
				Toast.makeText(mActivity, error.getMessage(), Toast.LENGTH_LONG)
						.show();
				break;
			}
		}

	}

	private void handleCause() {

	}

}