package com.my;
import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.XmlResourceParser;
import android.os.Bundle;
import android.text.style.ParagraphStyle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.view.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.my.R;
public class MainApplicationActivity extends Activity implements OnClickListener {
TextView tvShow;
ArrayList<PackageInfo> skinList = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//根据项目包名得到所有皮肤包
skinList = getAllSkin();
initView();
}
void initView() {
tvShow = (TextView)findViewById(R.id.tvShow);
findViewById(R.id.btnNormal).setOnClickListener(this);
}
/**
* 得到所有表情包
*
* @return
*/
private ArrayList<PackageInfo> getAllSkin() {
ArrayList<PackageInfo> skinList = new ArrayList<PackageInfo>();
//得到系统所有已安装项目的包名
List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
for (PackageInfo p : packs) {
if (isSkinPackage(p.packageName))
skinList.add(p);
}
return skinList;
}
/**
* 判断是否为表情包
*
* @param packageName
* @return
*/
private boolean isSkinPackage(String packageName) {
String rex = "com.myskin.\\w";
Pattern pattern = Pattern.compile(rex);
Matcher matcher = pattern.matcher(packageName);
return matcher.find();
}
int i = 0;
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnNormal:
Context friendContext = null;
try {
//得到皮肤项目上下文
friendContext = this.createPackageContext(skinList.get(i).packageName,
Context.CONTEXT_IGNORE_SECURITY);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//通过context 得到填充activity的布局文件 注意:布局文件是从skin1 或 skin2 项目中获取的 此处是关键
View view = View.inflate(friendContext, R.layout.main, null);
//指定Activity布局
setContentView(view);
//初始化布局
initView();
i++;
if (i >= skinList.size()) {
i = 0;
}
break;
default:
break;
}
}
}