android中怎么把自己须要的app启动图标集中到一个弹出框中

先看效果图

这个是我们自己的apk点击之后的效果

下边是布局文件

activity_main.xml主布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity"

    android:orientation="vertical">

<TextView 

   android:layout_width="match_parent"

   android:layout_height="wrap_content"

   android:gravity="center"

   android:layout_marginTop="15dp"

   android:text="@string/app_name"/>





    <GridView 

        android:id="@+id/allapps"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"/>





</LinearLayout>

我用一个GridView 做容器

下边是单个item布局文件

application_layout.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"

    android:gravity="center" 

    >

    

<ImageView 

   android:id="@+id/app_icon"

   android:layout_width="wrap_content"

   android:layout_height="wrap_content"

   android:layout_marginTop="15dp"/>



<TextView

   android:id="@+id/app_title"

   android:layout_width="wrap_content"

   android:layout_height="wrap_content"

   android:textSize="12sp"

   android:gravity="center"/>

</LinearLayout>

下边是AndroidManifest.xml。这个里边有几个和普通apk不同的地方

<?xml version="1.0" encoding="utf-8"?

>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.wind.lancherdemo"

    android:versionCode="1"

    android:versionName="1.0" >





    <uses-sdk

        android:minSdkVersion="17"

        android:targetSdkVersion="17" />





    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name" >

        <activity

            android:name="com.wind.lancherdemo.MainActivity"

            android:theme="@android:style/Theme.Dialog"                  <!--这个更改app theme为Dialog-->

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />





                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>





</manifest>

下边是源文件

package com.wind.lancherdemo;





import java.util.ArrayList;

import java.util.Collections;

import java.util.List;





import android.app.Activity;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.view.Window;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.BaseAdapter;

import android.widget.GridView;

import android.widget.ImageView;

import android.widget.TextView;





public class MainActivity extends Activity implements OnItemClickListener{

private GridView mGridView;

private Context mContext;

private PackageManager mPackageManager;

private List<ResolveInfo> mAllApps;

private List<ResolveInfo> mShowApps = new ArrayList<ResolveInfo>();

private static final String[] mShowAppPkgNames = {"com.android.contacts","com.android.mms","com.android.browser"};  //这个地方能够加入我们须要过滤的apk包名

  @Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_main);



setupViews();

}













private void setupViews() {

mContext = MainActivity.this;

mPackageManager = getPackageManager();

mGridView = (GridView)findViewById(R.id.allapps);

bindAllApps();



mGridView.setAdapter(new GridItemAdapter(mContext, mShowApps));  //这个地方时设置GridView的适配器，不懂的能够去网上搜下详细教程

mGridView.setNumColumns(3);

mGridView.setOnItemClickListener(this);

}













private void bindAllApps() {

Intent mainIntent = new Intent(Intent.ACTION_MAIN,null);

mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);

mAllApps = mPackageManager.queryIntentActivities(mainIntent, 0);//这个地方就是我们依据我们安装的全部apk过滤出我们想要的apk，这样做的目的是你删除了某个我们须要的应用。我们的程序依旧正常

for (ResolveInfo app_item : mAllApps) {

String pkg = app_item.activityInfo.packageName;

for (int i = 0; i < mShowAppPkgNames.length; i++) {

if(mShowAppPkgNames[i].equals(pkg)) {

mShowApps.add(app_item);

}

}

}

Collections.sort(mShowApps, new ResolveInfo.DisplayNameComparator(mPackageManager));

}











//这个是依据我们的点击进入到详细的应用

@Override

public void onItemClick(AdapterView<?

> parent, View view, int position, long id) {

ResolveInfo res = mShowApps.get(position);

String pkg = res.activityInfo.packageName;

String cls = res.activityInfo.name;



ComponentName component = new ComponentName(pkg, cls);



Intent i = new Intent();

i.setComponent(component);

startActivity(i);

}

//这个地方是我们重写我们的GridView适配器

private class GridItemAdapter extends BaseAdapter{

private Context context;

private List<ResolveInfo> resInfo;







public GridItemAdapter(Context context, List<ResolveInfo> resInfo) {

this.context = context;

this.resInfo = resInfo;

}





@Override

public int getCount() {

// TODO Auto-generated method stub

return resInfo.size();

}





@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return resInfo.get(position);

}





@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return position;

}



//这个地方用ViewHolder的目的是不用我们每次重构我们的convertView 及寻找ImageView和TextView，能够提高app执行速度

@Override

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

ViewHolder holder = null;



if (convertView == null) {

convertView = LayoutInflater.from(context).inflate(R.layout.application_layout, null);

holder = new ViewHolder();

holder.mAppIcon = (ImageView)convertView.findViewById(R.id.app_icon);

holder.mAppTitle = (TextView)convertView.findViewById(R.id.app_title);

convertView.setTag(holder);

} else {

holder = (ViewHolder)convertView.getTag();

}



ResolveInfo res = resInfo.get(position);

holder.mAppIcon.setImageDrawable(res.loadIcon(mPackageManager));

holder.mAppTitle.setText(res.loadLabel(mPackageManager).toString());



return convertView;

}



private class ViewHolder {

ImageView mAppIcon;

TextView mAppTitle;

}

}





}