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AppInfo

MainActivity.java

package com.example.a10223567.appinfo;import android.content.Context;import android.content.Intent;import android.content.pm.ApplicationInfo;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.os.Environment;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.ListView;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity{    private ListView lv;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lv = (ListView) findViewById(R.id.list_item);        setAdapter(getAllapps(MainActivity.this, 0));//      apk信息        PackageInfo info = this.getPackageManager().getPackageArchiveInfo("/sdcard/app-release.apk", PackageManager.GET_ACTIVITIES);        ApplicationInfo appInfo = null;        if (info != null) {            appInfo = info.applicationInfo;            Log.d("fuck", "packageName--->"+ appInfo.packageName);        }//      按钮        Button systemApp = (Button) findViewById(R.id.button_system);        Button nonsystemApp = (Button) findViewById(R.id.button_nonsystem);        systemApp.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                setAdapter(getAllapps(MainActivity.this, 1));            }        });        nonsystemApp.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                setAdapter(getAllapps(MainActivity.this, 2));            }        });    }//    adapter render    public void setAdapter(List<AppDetail> list){        AppInfoAdapter adapter = new AppInfoAdapter(this, R.layout.app_item, list);        lv.setAdapter(adapter);    }    private String getVersionName(String packageName) {        PackageManager pm = getPackageManager();        PackageInfo packInfo = null;        try {            packInfo = pm.getPackageInfo(packageName, 0);        } catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();        }        String version = packInfo.versionName + "  Code: " + packInfo.versionCode;        return version != null ? version : "未获取到系统版本号";    }//   是否是系统应用    public Boolean isSystemApp(Context context,ResolveInfo resolveInfo){        PackageInfo packInfo = null;        String packageName = resolveInfo.activityInfo.packageName;        try {            packInfo = context.getPackageManager().getPackageInfo(packageName, 0);        } catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();        }        if ((packInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0){            return false;        } else {            return true;        }    }//   获取所有应用的信息    public List<AppDetail> getAllapps(Context context, int type){        List<AppDetail> apps = new ArrayList<>();        PackageManager pm = context.getPackageManager();        Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);        //查询ResolveInfo对象        List<ResolveInfo> resolveInfos = pm.queryIntentActivities(mainIntent, PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);        for (int i = 0; i < resolveInfos.size(); i++){            AppDetail temp = new AppDetail();            ResolveInfo resolveInfo = resolveInfos.get(i);            temp.setAppIcon(resolveInfo.loadIcon(pm));            temp.setAppName(resolveInfo.loadLabel(pm).toString());            temp.setPackageName(resolveInfo.activityInfo.packageName);            temp.setVersionName(getVersionName(resolveInfo.activityInfo.packageName));//            temp.setAppPath(getAppDir(this, resolveInfo));            switch(type){                case 1:                    if (isSystemApp(this, resolveInfo)){                        apps.add(temp);                    }                    break;                case 2:                    if (!isSystemApp(this, resolveInfo)){                        apps.add(temp);                    }                    break;                default:                    apps.add(temp);            }        }        return apps;    }}

AppInfoAdapter

package com.example.a10223567.appinfo;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.ImageView;import android.widget.TextView;import java.util.List;/** * Created by 10223567 on 2017/8/3. */public class AppInfoAdapter extends ArrayAdapter<AppDetail>{    private int resourceId;    public AppInfoAdapter(Context context, int textViewResourceId, List<AppDetail> objects){        super(context, textViewResourceId, objects);        resourceId = textViewResourceId;    }    @Override    public View getView(int position, View convertView, ViewGroup parent){        AppDetail appDetail = getItem(position);        View view;        ViewHolder viewHolder;        if (convertView == null){            view = LayoutInflater.from(getContext()).inflate(resourceId, parent, false);            viewHolder = new ViewHolder();            viewHolder.appIcon = (ImageView) view.findViewById(R.id.app_icon);            viewHolder.appName = (TextView) view.findViewById(R.id.app_name);            view.setTag(viewHolder);        } else {            view = convertView;            viewHolder = (ViewHolder) view.getTag();        }        viewHolder.appIcon.setImageDrawable(appDetail.getAppIcon());        viewHolder.appName.setText(appDetail.getAppName() +"\n"+ appDetail.getPackageName() +"\n"+                appDetail.getVersionName() +"\n"+ appDetail.getAppPath());        return view;    }    class ViewHolder{        ImageView appIcon;        TextView appName;    }}

AppDetail

package com.example.a10223567.appinfo;import android.graphics.drawable.Drawable;/** * Created by 10223567 on 2017/8/3. */public class AppDetail {    private Drawable appIcon;//应用的图标    private String appName;//应用名称    private String packageName;//应用的包名    private String versionName;//版本名    private String appPath;    public String getAppName(){        return appName;    }    public void setAppName(String appName){        this.appName = appName;    }    public Drawable getAppIcon(){        return appIcon;    }    public void setAppIcon(Drawable appIcon){        this.appIcon = appIcon;    }    public void setVersionName(String versionName){        this.versionName = versionName;    }    public String getVersionName(){        return versionName;    }    public void setPackageName(String packageName){        this.packageName = packageName;    }    public String getPackageName(){        return packageName;    }    public void setAppPath(String appPath){        this.appPath = appPath;    }    public String getAppPath() {        return appPath;    }}

app_item.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal" android:layout_width="match_parent"    android:layout_height="wrap_content">    <ImageView        android:id="@+id/app_icon"        android:scaleType="centerInside"        android:layout_width="60dp"        android:layout_height="60dp"        android:layout_gravity="center_vertical"        android:padding="2dp"        />    <TextView        android:id="@+id/app_name"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center_vertical"        android:layout_marginLeft="10dp"        android:lineSpacingExtra="2dp"        /></LinearLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    >    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button        android:id="@+id/button_system"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="系统应用"        android:layout_weight="1"        />        <Button        android:id="@+id/button_nonsystem"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="第三方应用"        android:layout_weight="1"        />    </LinearLayout>    <ListView        android:id="@+id/list_item"        android:layout_width="match_parent"        android:layout_height="match_parent"        >    </ListView></LinearLayout>