Android获取apk的版本及包名等信息

http://blog.sina.com.cn/s/blog_49f485700100qk10.html

import android.app.Activity; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.res.Resources; import android.graphics.drawable.Drawable; import android.graphics.drawable.TransitionDrawable; import android.os.Bundle; import android.view.ViewGroup.LayoutParams; import android.widget.Gallery; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast;
public class test4 extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); String archiveFilePath="sdcard/download/Law.apk";//安装包路径 PackageManager pm = getPackageManager(); PackageInfo info = pm.getPackageArchiveInfo(archiveFilePath, PackageManager.GET_ACTIVITIES); if(info != null){ ApplicationInfo appInfo = info.applicationInfo; String appName = pm.getApplicationLabel(appInfo).toString(); String packageName = appInfo.packageName; //得到安装包名称 String version=info.versionName; //得到版本信息 Toast.makeText(test4.this, "packageName:"+packageName+";version:"+version, Toast.LENGTH_LONG).show(); Drawable icon = pm.getApplicationIcon(appInfo);//得到图标信息 TextView tv = (TextView)findViewById(R.id.tv); //显示图标 tv.setBackgroundDrawable(icon); } } }

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