获取sdcard上的所有apk
package com.shishixun.installapk;
import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
import android.app.Activity;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.format.Formatter;
import android.util.Log;
public class MainActivity extends Activity {
??? /** Called when the activity is first created. */
??? @Override
??? public void onCreate(Bundle savedInstanceState) {
??????? super.onCreate(savedInstanceState);
??????? setContentView(R.layout.main);
??????? final File appFolder = new File( "/sdcard" );
??? ?ArrayList<File> files = getFiles( appFolder,
????true );
??? ?PackageManager pm = getPackageManager( );
??? ?for ( int i = 0, size = files.size( ); i < size; i++ )
??{
???File f = files.get( i );
???PackageInfo pi= pm.getPackageArchiveInfo( f.getAbsolutePath( ), 0 );
???if ( pi != null )
???{
????ApkInfo holder = new ApkInfo( );
????holder.file = f;
????holder.pkgName = pi.packageName;
????holder.size = f.length( );
????holder.sizeString = Formatter.formatFileSize( MainActivity.this,
??????holder.size );
????holder.version = pi.versionName == null ? String.valueOf( pi.versionCode )
??????: pi.versionName;
????System.out.println("file="+f+"pkgName="+holder.pkgName +"size"+holder.sizeString+"version"+holder.version? );
???}
??}
??? }
???
???
??? ArrayList<File> getFiles( File parent, final boolean recursive )
?{
??final ArrayList<File> files = new ArrayList<File>( );
??FileFilter filter = new FileFilter( ) {
???public boolean accept( File f )
???{
????if ( f.isFile( )
??????&& f.getName( ).toLowerCase( ).endsWith( ".apk" ) )
????{
?????files.add( f );
????}
????else if ( recursive && f.isDirectory( ) )
????{
?????try
?????{
??????// try skip links
??????if ( f.getAbsolutePath( )
????????.equals( f.getCanonicalPath( ) ) )
??????{
???????f.listFiles( this );
??????}
?????}
?????catch ( Exception e )
?????{
??????Log.e( MainActivity.class.getName( ),
????????e.getLocalizedMessage( ),
????????e );
?????}
????}
????return false;
???}
??};
??parent.listFiles( filter );
??return files;
?}
???
???
??? /**
? * ApkInfo
? */
?private static final class ApkInfo
?{
??File file;
??CharSequence label;
??String pkgName;
??String version;
??String sizeString;
??long size;
??Drawable icon;
??int installed;
??boolean checked;
??ApkInfo( )
??{
??}
?}
}
