SendGiftActivity.java

package com.kaixin.android.activity;

import java.util.HashMap;
import java.util.Map;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.TypedValue;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;

import com.kaixin.android.KXActivity;
import com.kaixin.android.R;
import com.kaixin.android.common.Constants;
import com.kaixin.android.result.GiftResult;
import com.kaixin.android.utils.ActivityForResultUtil;
import com.kaixin.android.utils.TextUtil;
import com.nostra13.universalimageloader.core.ImageLoader;

/**
 * 送礼物类
 * 
 * @author gyz
 * 
 */
public class SendGiftActivity extends KXActivity {
	private Button mCancel;
	private Button mHandsel;
	private LinearLayout mFriendsList;
	private EditText mMessage;
	private ImageView mMessageLine1;
	private ImageView mMessageLine2;
	private ImageView mAddGift;
	private CheckBox mSendType;
	private CheckBox mSendSMS;
	// 是否已经选择礼物
	private boolean mIsSelectGift;

	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.sendgift_activity);
		findViewById();
		setListener();
		init();
	}

	private void findViewById() {
		mCancel = (Button) findViewById(R.id.sendgift_cancel);
		mHandsel = (Button) findViewById(R.id.sendgift_handsel);
		mFriendsList = (LinearLayout) findViewById(R.id.sendgift_friends_list);
		mMessage = (EditText) findViewById(R.id.sendgift_message);
		mMessageLine1 = (ImageView) findViewById(R.id.sendgift_message_line1);
		mMessageLine2 = (ImageView) findViewById(R.id.sendgift_message_line2);
		mAddGift = (ImageView) findViewById(R.id.sendgift_add_gift);
		mSendType = (CheckBox) findViewById(R.id.sendgift_send_type);
		mSendSMS = (CheckBox) findViewById(R.id.sendgift_send_sms);
	}

	private void setListener() {
		mCancel.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				//关闭当前界面
				finish();
			}
		});
		mHandsel.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				//判断是否显示礼物,如果选择了则显示发送成功并关闭当前界面否则则显示对话框提示
				if (mIsSelectGift) {
					Toast.makeText(SendGiftActivity.this, "礼物发送成功",
							Toast.LENGTH_SHORT).show();
					finish();
				} else {
					new AlertDialog.Builder(SendGiftActivity.this)
							.setTitle("OOXX")
							.setIcon(android.R.drawable.ic_dialog_alert)
							.setMessage("请选择礼物")
							.setPositiveButton("确定",
									new DialogInterface.OnClickListener() {

										public void onClick(
												DialogInterface dialog,
												int which) {
											dialog.dismiss();
										}
									}).create().show();
				}
			}
		});
		mMessage.addTextChangedListener(new TextWatcher() {
			//当文本修改时调用
			public void onTextChanged(CharSequence s, int start, int before,
					int count) {
				//根据内容的行数添加文本线
				int lineCount = mMessage.getLineCount();
				switch (lineCount) {
				case 1:
					mMessageLine2.setVisibility(View.GONE);
					break;

				case 2:
					mMessageLine2.setVisibility(View.VISIBLE);
					break;
				}
			}

			public void beforeTextChanged(CharSequence s, int start, int count,
					int after) {

			}

			public void afterTextChanged(Editable s) {

			}
		});
		mFriendsList.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				//跳转到选择好友
				startActivityForResult(new Intent(SendGiftActivity.this,
						SelectFriendsActivity.class),
						ActivityForResultUtil.REQUESTCODE_SELECTFRIENDS);
			}
		});
		mAddGift.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				//跳转到选择礼物
				startActivityForResult(new Intent(SendGiftActivity.this,
						SelectGiftActivity.class),
						ActivityForResultUtil.REQUESTCODE_SELECTGIFT);
			}
		});
		mSendType.setOnCheckedChangeListener(new OnCheckedChangeListener() {

			public void onCheckedChanged(CompoundButton buttonView,
					boolean isChecked) {
				// 暂时不做任何操作
			}
		});
		mSendSMS.setOnCheckedChangeListener(new OnCheckedChangeListener() {

			public void onCheckedChanged(CompoundButton buttonView,
					boolean isChecked) {
				// 暂时不做任何操作
			}
		});
	}

	private void init() {
		//初始化显示一条线
		mMessageLine1.setVisibility(View.VISIBLE);
		mMessageLine2.setVisibility(View.GONE);
		//获取当前接收礼物的好友的ID、姓名以及头像
		String uid = getIntent().getStringExtra("uid");
		String name = getIntent().getStringExtra("name");
		int avatar = getIntent().getIntExtra("avatar", -1);
		//添加到送礼物列表中
		Map<String, String> map = new HashMap<String, String>();
		map.put("uid", uid);
		map.put("name", name);
		map.put("avatar", String.valueOf(avatar));
		mKXApplication.mGiftFriendsList.put(uid, map);
		// 更新头像列表
		initFriendsList();
	}
	/**
	 * 修改头像框显示内容
	 */
	private void initFriendsList() {
		mFriendsList.removeAllViews();
		for (Map.Entry<String, Map<String, String>> entry : mKXApplication.mGiftFriendsList
				.entrySet()) {
			ImageView imageView = getImageView();
//			imageView.setImageBitmap(mKXApplication.getAvatar(Integer
//					.parseInt(entry.getValue().get("avatar"))));
			ImageLoader.getInstance().displayImage(Constants.getImageUrl() + entry.getValue().get("avatar"), imageView);
			
			mFriendsList.addView(imageView);
			mFriendsList.invalidate();
		}
		ImageView imageView = getImageView();
		imageView.setImageBitmap(BitmapFactory.decodeResource(getResources(),
				R.drawable.gifts_add));
		mFriendsList.addView(imageView);
		mFriendsList.invalidate();
	}
	/**
	 * 获取头像框控件
	 * 
	 * @return
	 */
	private ImageView getImageView() {
		ImageView imageView = new ImageView(SendGiftActivity.this);
		int widthAndHeight = (int) TypedValue.applyDimension(
				TypedValue.COMPLEX_UNIT_DIP, 30, getResources()
						.getDisplayMetrics());
		LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
				widthAndHeight, widthAndHeight);
		imageView.setLayoutParams(params);
		imageView.setPadding(4, 4, 4, 4);
		return imageView;
	}

	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		switch (requestCode) {
		case ActivityForResultUtil.REQUESTCODE_SELECTGIFT:
			if (resultCode == RESULT_OK) {
				//获取礼物成功后,显示获取的礼物的内容和显示图片
				mIsSelectGift = true;
				GiftResult result = data.getParcelableExtra("result");
				mAddGift.setImageBitmap(mKXApplication.getGift(result.getGid()
						+ ".jpg"));
				mMessage.setText(new TextUtil(mKXApplication).replace(result
						.getContent()));
			}
			break;

		case ActivityForResultUtil.REQUESTCODE_SELECTFRIENDS:
			if (resultCode == RESULT_OK) {
				// 更新头像列表
				initFriendsList();
			}
			break;
		}
	}

	protected void onDestroy() {
		super.onDestroy();
		mKXApplication.mGiftFriendsList.clear();
	}
}