Android中获取apk安装包信息的方法

一、获取安装包信息

复制代码代码如下:

/**

* 获取apk包的信息：版本号，名称，图标等

* @param absPath apk包的绝对路径

* @param context

*/

public void apkInfo(String absPath,Context context) {

PackageManager pm = context.getPackageManager();

PackageInfo pkgInfo = pm.getPackageArchiveInfo(absPath,PackageManager.GET_ACTIVITIES);

if (pkgInfo != null) {

ApplicationInfo appInfo = pkgInfo.applicationInfo;

/* 必须加这两句，不然下面icon获取是default icon而不是应用包的icon */

appInfo.sourceDir = absPath;

appInfo.publicSourceDir = absPath;

String appName = pm.getApplicationLabel(appInfo).toString();// 得到应用名

String packageName = appInfo.packageName; // 得到包名

String version = pkgInfo.versionName; // 得到版本信息

/* icon1和icon2其实是一样的 */

Drawable icon1 = pm.getApplicationIcon(appInfo);// 得到图标信息

Drawable icon2 = appInfo.loadIcon(pm);

String pkgInfoStr = String.format("PackageName:%s, Vesion: %s, AppName: %s", packageName, version, appName);

Log.i(TAG, String.format("PkgInfo: %s", pkgInfoStr));

}

}

二、在APK安装的时候，我们可以获取安装包、版本、包名等信息。

复制代码代码如下:

public class TestActivity extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

String archiveFilePath="sdcard/jb51.net.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(TestActivity.this, , Toast.LENGTH_LONG).show();

Drawable icon = pm.getApplicationIcon(appInfo);//得到图标信息

TextView tv = (TextView)findViewById(R.id.tv);

tv.setText("appName:"+appName+"---packageName:"+packageName);

//显示图标

ImageView tu=(ImageView)findViewById(R.id.imageView1);

tu.setBackgroundDrawable(icon);

}

}

}

}

}