Android 皮肤apk实现换肤

没有安装顺序，先安装皮肤后安装主程序完全可以。

安装成功之后在程序里面找不皮肤1/2/3启动文件，因为皮肤只能在主程序中使用。在卸载里面能看到安装上的皮肤，可以卸载掉。

好了来看下主要代码:

Java代码


package com.iaiai;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;

/**
*
* <p>
* Title: MainActivity.java
* </p>
* <p>
* E-Mail: 176291935@qq.com
* </p>
* <p>
* QQ: 176291935
* </p>
* <p>
* Http: iaiai.iteye.com
* </p>
* <p>
* Create time: 2011-10-18
* </p>
*
* @author 丸子
* @version 0.0.1
*/
public class MainActivity extends Activity {

private ArrayList<PackageInfo> getAllSkin() {
ArrayList<PackageInfo> skinList = new ArrayList<PackageInfo>();
List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
for (PackageInfo p : packs) {
if (isSkinPackage(p.packageName)) {
skinList.add(p);
}
}
return skinList;
}

private boolean isSkinPackage(String packageName) {
String rex = ”com.iaiai\\w”;
Pattern pattern = Pattern.compile(rex);
Matcher matcher = pattern.matcher(packageName);
return matcher.find();
}

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

final LinearLayout layout = (LinearLayout) findViewById(R.id.layout);

((Button) findViewById(R.id.def))
.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
layout.setBackgroundDrawable(getResources()
.getDrawable(R.drawable.bg));
}
});

ArrayList<PackageInfo> skinList = getAllSkin();

for (int i = 0; i < skinList.size(); i++) {
try {
final Context friendContext = createPackageContext(
skinList.get(i).packageName,
Context.CONTEXT_IGNORE_SECURITY);

Button btn = new Button(this);
btn.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
btn.setText(friendContext.getText(R.string.app_name));
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
layout.setBackgroundDrawable(friendContext
.getResources().getDrawable(R.drawable.bg));
}
});

layout.addView(btn);
} catch (NameNotFoundException e) {
e.printStackTrace();
}
}
}

}