Android 获取元数据 meta

[android]代码库

package com.njupt.metadata;

import android.os.Bundle;
import android.app.Activity;
import android.content.ComponentName;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.view.Menu;
import android.view.View;

public class MainActivity extends Activity {

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

        public void get(View v){
                try {
                        PackageManager pm = getPackageManager();
                        ComponentName component = new ComponentName(this,MainActivity.class);
                        ActivityInfo info = pm.getActivityInfo(component,PackageManager.GET_META_DATA);
                        Bundle bundle = info.metaData;
                        String java_ns = bundle.getString("java_ns");
                        int balance = bundle.getInt("balance");
                        String c_ns = bundle.getString("c++_ns");
                        String wife = getString(bundle.getInt("wife"));
                        
                        System.out.println("java_ns: " + java_ns + ", balance: " + balance +",c_ns: " + c_ns +",wife: " + wife);
                } catch (NameNotFoundException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
        }
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                // Inflate the menu; this adds items to the action bar if it is present.
                getMenuInflater().inflate(R.menu.main, menu);
                return true;
        }

}