Android应用实现更换皮肤功能

Android应用实现更换皮肤功能

Category：etensoft     Time：2012-12-18 20:37     点击：286 次

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; impor

 

 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;


 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();
             }
         }
     }

 }

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