Android 獲取所有安裝應用顯示在listview上

先看效果圖；

詳細看代碼；

package com.taskmanage.file;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.Settings;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

publicclass SoftActivity extends Activity implements Runnable ,OnItemClickListener{

privatestaticfinal String SCHEME = "package";
privatestaticfinal String APP_PKG_NAME_21 = "com.android.settings.ApplicationPkgName";
privatestaticfinal String APP_PKG_NAME_22 = "pkg";
privatestaticfinal String APP_DETAILS_PACKAGE_NAME = "com.android.settings";
privatestaticfinal String APP_DETAILS_CLASS_NAME = "com.android.settings.InstalledAppDetails";

private List<Map<String, Object>> list = null;
private ListView softlist = null;
private ProgressDialog pd;
private Context mContext;
private PackageManager mPackageManager;
private List<ResolveInfo> mAllApps;

@Override
protectedvoid onCreate(Bundle savedInstanceState) {
        setContentView(R.layout.software);
        setTitle("文件管理器");

        mContext = this;
        mPackageManager = getPackageManager();

        softlist = (ListView) findViewById(R.id.softlist);

         pd = ProgressDialog.show(this, "請稍候..", "正在收集軟件信息...", true,false);
         Thread thread = new Thread(this);
         thread.start();

super.onCreate(savedInstanceState);
    }
/**
     * 檢查系統應用程序，添加到應用列表中
     */
privatevoid bindMsg(){
//應用過濾條件
        Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
        mAllApps = mPackageManager.queryIntentActivities(mainIntent, 0);
        softlist.setAdapter(new MyAdapter(mContext, mAllApps));
        softlist.setOnItemClickListener(this);
//按報名排序
        Collections.sort(mAllApps, new ResolveInfo.DisplayNameComparator(mPackageManager));

    }

@Override
publicvoid run() {
        bindMsg();
        handler.sendEmptyMessage(0);

    }
private Handler handler = new Handler() {
publicvoid handleMessage(Message msg) {
            pd.dismiss();
        }
    };

class MyAdapter extends BaseAdapter{

private Context context;
private List<ResolveInfo> resInfo;
private ImageView app_icon=null;
private TextView app_tilte=null,app_des=null;
private ResolveInfo res;
private LayoutInflater infater=null;

public MyAdapter(Context context, List<ResolveInfo> resInfo) {
this.context = context;
this.resInfo = resInfo;
             infater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }

@Override
publicint getCount() {

return resInfo.size();
        }

@Override
public Object getItem(int arg0) {

return arg0;
        }

@Override
publiclong getItemId(int position) {

return position;
        }

@Override
public View getView(int position, View convertView, ViewGroup parent) {

//  View view = null;
            ViewHolder holder = null;
if (convertView == null || convertView.getTag() == null) {
                convertView = infater.inflate(R.layout.soft_row, null);
                holder = new ViewHolder(convertView);
                convertView.setTag(holder);
            }
else{
//     view = convertView ;
                holder = (ViewHolder) convertView.getTag() ;
            }
//獲取應用程序包名，程序名稱，程序圖標
            res = resInfo.get(position);
            holder.appIcon.setImageDrawable(res.loadIcon(mPackageManager));
            holder.tvAppLabel.setText(res.loadLabel(mPackageManager).toString());
            holder.tvPkgName.setText(res.activityInfo.packageName+'\n'+res.activityInfo.name);
return convertView;

/*convertView = LayoutInflater.from(context).inflate(R.layout.soft_row, null);

            app_icon = (ImageView)convertView.findViewById(R.id.img);
            app_tilte = (TextView)convertView.findViewById(R.id.name);
            app_des = (TextView)convertView.findViewById(R.id.desc);

            res = resInfo.get(position);
            app_icon.setImageDrawable(res.loadIcon(mPackageManager));
            app_tilte.setText(res.loadLabel(mPackageManager).toString());
            app_des.setText(res.activityInfo.packageName+'\n'+res.activityInfo.name);

            return convertView;*/
        }
    }
//設定界面佈局
class ViewHolder {
        ImageView appIcon;
        TextView tvAppLabel;
        TextView tvPkgName;

public ViewHolder(View view) {
this.appIcon = (ImageView) view.findViewById(R.id.img);
this.tvAppLabel = (TextView) view.findViewById(R.id.name);
this.tvPkgName = (TextView) view.findViewById(R.id.desc);
        }
    }
/**
     * 單擊應用程序後進入系統應用管理界面
     */
@Override
publicvoid onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {

        ResolveInfo res = mAllApps.get(position);
        String pkg=res.activityInfo.packageName;
        Intent intent = new Intent();

finalint apiLevel = Build.VERSION.SDK_INT;

if (apiLevel >= 9) {//2.2版本後
            intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
            Uri uri = Uri.fromParts(SCHEME, pkg, null);
            intent.setData(uri);
        }else{//2.2之前
final String appPkgName = (apiLevel == 8 ? APP_PKG_NAME_22
                    : APP_PKG_NAME_21);
            intent.setAction(Intent.ACTION_VIEW);
            intent.setClassName(APP_DETAILS_PACKAGE_NAME,
                    APP_DETAILS_CLASS_NAME);
            intent.putExtra(appPkgName, pkg);
        }
        startActivity(intent);
    }

}

software.xml佈局；

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <ListView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:drawSelectorOnTop="false"
        android:id="@+id/softlist" />

</LinearLayout>

soft_row.xml佈局；

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/vw1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <ImageView android:id="@+id/img"
        android:layout_width="32dip"
        android:layout_margin="4dip"
        android:layout_height="32dip"/>

   <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView android:id="@+id/name"
            android:textSize="18sp"
            android:textStyle="bold"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>

        <TextView android:id="@+id/desc"
            android:textSize="14sp"
            android:layout_width="fill_parent"
            android:paddingLeft="10dip"
            android:layout_height="wrap_content"/>

    </LinearLayout>

</LinearLayout>

最後別忘了加權限；

<uses-permissionandroid:name="android.permission.READ_PHONE_STATE"/>
<uses-permissionandroid:name="android.permission.GET_TASKS"/>

【轉】http://blog.csdn.net/yudajun/article/details/7956933