androdi 怎么获得安装在SD卡上面的程序 RT 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 一般安装在SD卡的应用程序都是以包名作为应用程序文件夹的名称,所以尼可以遍历SD安装应用程序的目录,获取下面子文件的名称,然后把这个名称作为包名去搜索应用程序我自己没试过,只是提供一个思路,不知道网上有没有人已经做好了 使用packageManager 详情请自行搜索吧 给你贴点代码package eoe.appshow; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.Activity; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.TextView; public class AppShowActivity extends Activity { ListView lv; MyAdapter adapter; ArrayList<HashMap<String, Object>> items = new ArrayList<HashMap<String, Object>>(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); lv = (ListView)findViewById(R.id.lv); //得到PackageManager对象 PackageManager pm = getPackageManager(); //得到系统安装的所有程序包的PackageInfo对象 //List<ApplicationInfo> packs = pm.getInstalledApplications(0); List<PackageInfo> packs = pm.getInstalledPackages(0); for(PackageInfo pi:packs) { HashMap<String, Object> map = new HashMap<String, Object>(); //显示用户安装的应用程序,而不显示系统程序 // if((pi.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM)==0&& // (pi.applicationInfo.flags&ApplicationInfo.FLAG_UPDATED_SYSTEM_APP)==0) // { // //这将会显示所有安装的应用程序,包括系统应用程序 // map.put("icon", pi.applicationInfo.loadIcon(pm));//图标 // map.put("appName", pi.applicationInfo.loadLabel(pm));//应用程序名称 // map.put("packageName", pi.applicationInfo.packageName);//应用程序包名 // //循环读取并存到HashMap中,再增加到ArrayList上,一个HashMap就是一项 // items.add(map); // } //这将会显示所有安装的应用程序,包括系统应用程序 map.put("icon", pi.applicationInfo.loadIcon(pm));//图标 map.put("appName", pi.applicationInfo.loadLabel(pm));//应用程序名称 map.put("packageName", pi.applicationInfo.packageName);//应用程序包名 //循环读取并存到HashMap中,再增加到ArrayList上,一个HashMap就是一项 items.add(map); } /** * 参数:Context * ArrayList(item的集合) * item的layout * 包含ArrayList中的HashMap的key的数组 * key所对应的值的相应的控件id */ adapter = new MyAdapter(this, items, R.layout.piitem, new String[]{"icon", "appName", "packageName"}, new int[]{R.id.icon, R.id.appName, R.id.packageName}); lv.setAdapter(adapter); } } class MyAdapter extends SimpleAdapter { private int[] appTo; private String[] appFrom; private ViewBinder appViewBinder; private List<? extends Map<String, ?>> appData; private int appResource; private LayoutInflater appInflater; public MyAdapter(Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to) { super(context, data, resource, from, to); appData = data; appResource = resource; appFrom = from; appTo = to; appInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public View getView(int position, View convertView, ViewGroup parent){ return createViewFromResource(position, convertView, parent, appResource); } private View createViewFromResource(int position, View convertView, ViewGroup parent, int resource){ View v; if(convertView == null) { v = appInflater.inflate(resource, parent,false); final int[] to = appTo; final int count = to.length; final View[] holder = new View[count]; for(int i = 0; i < count; i++) { holder[i] = v.findViewById(to[i]); } v.setTag(holder); }else { v = convertView; } bindView(position, v); return v; } private void bindView(int position, View view) { final Map dataSet = appData.get(position); if(dataSet == null) { return; } final ViewBinder binder = appViewBinder; final View[] holder = (View[])view.getTag(); final String[] from = appFrom; final int[] to = appTo; final int count = to.length; for(int i = 0; i < count; i++) { final View v = holder[i]; if(v != null) { final Object data = dataSet.get(from[i]); String text = data == null ? "":data.toString(); if(text == null) { text = ""; } boolean bound = false; if(binder != null) { bound = binder.setViewValue(v, data, text); } if(!bound) { /** * 自定义适配器,关在在这里,根据传递过来的控件以及值的数据类型, * 执行相应的方法,可以根据自己需要自行添加if语句。另外,CheckBox等 * 集成自TextView的控件也会被识别成TextView,这就需要判断值的类型 */ if(v instanceof TextView) { //如果是TextView控件,则调用SimpleAdapter自带的方法,设置文本 setViewText((TextView)v, text); }else if(v instanceof ImageView){ //如果是ImageView控件,调用自己写的方法,设置图片 setViewImage((ImageView)v, (Drawable)data); }else{ throw new IllegalStateException(v.getClass().getName() + " is not a " + "view that can be bounds by this SimpleAdapter"); } } } } } public void setViewImage(ImageView v, Drawable value){ v.setImageDrawable(value); } } 支持LS的,Framework层负责的主要是PackageManagerService...其实扫描后主要还是通过Linux的文件系统注册的 android应用开发疑问 listView GPS HAL 换掉 libhardware_legacy.so 之后开发板总是重启 android里MapView地图加载慢 android 下载网络图片报错的问题 activity跳转问题 请问下service被杀死如何自启动(非系统杀) google被墙了,如何通过git下载Android源码 请问:在service里面能否改变statusBar的颜色? 安卓图片处理问题 android零基础怎么学? 日期控件大小问题
我自己没试过,只是提供一个思路,不知道网上有没有人已经做好了
package eoe.appshow;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class AppShowActivity extends Activity {
ListView lv;
MyAdapter adapter;
ArrayList<HashMap<String, Object>> items = new ArrayList<HashMap<String, Object>>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
lv = (ListView)findViewById(R.id.lv);
//得到PackageManager对象
PackageManager pm = getPackageManager();
//得到系统安装的所有程序包的PackageInfo对象
//List<ApplicationInfo> packs = pm.getInstalledApplications(0);
List<PackageInfo> packs = pm.getInstalledPackages(0);
for(PackageInfo pi:packs)
{
HashMap<String, Object> map = new HashMap<String, Object>();
//显示用户安装的应用程序,而不显示系统程序
// if((pi.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM)==0&&
// (pi.applicationInfo.flags&ApplicationInfo.FLAG_UPDATED_SYSTEM_APP)==0)
// {
// //这将会显示所有安装的应用程序,包括系统应用程序
// map.put("icon", pi.applicationInfo.loadIcon(pm));//图标
// map.put("appName", pi.applicationInfo.loadLabel(pm));//应用程序名称
// map.put("packageName", pi.applicationInfo.packageName);//应用程序包名
// //循环读取并存到HashMap中,再增加到ArrayList上,一个HashMap就是一项
// items.add(map);
// }
//这将会显示所有安装的应用程序,包括系统应用程序
map.put("icon", pi.applicationInfo.loadIcon(pm));//图标
map.put("appName", pi.applicationInfo.loadLabel(pm));//应用程序名称
map.put("packageName", pi.applicationInfo.packageName);//应用程序包名
//循环读取并存到HashMap中,再增加到ArrayList上,一个HashMap就是一项
items.add(map);
}
/**
* 参数:Context
* ArrayList(item的集合)
* item的layout
* 包含ArrayList中的HashMap的key的数组
* key所对应的值的相应的控件id
*/
adapter = new MyAdapter(this, items, R.layout.piitem,
new String[]{"icon", "appName", "packageName"},
new int[]{R.id.icon, R.id.appName, R.id.packageName});
lv.setAdapter(adapter);
}
} class MyAdapter extends SimpleAdapter
{
private int[] appTo;
private String[] appFrom;
private ViewBinder appViewBinder;
private List<? extends Map<String, ?>> appData;
private int appResource;
private LayoutInflater appInflater;
public MyAdapter(Context context, List<? extends Map<String, ?>> data,
int resource, String[] from, int[] to) {
super(context, data, resource, from, to);
appData = data;
appResource = resource;
appFrom = from;
appTo = to;
appInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public View getView(int position, View convertView, ViewGroup parent){
return createViewFromResource(position, convertView, parent, appResource);
}
private View createViewFromResource(int position, View convertView, ViewGroup parent, int resource){
View v;
if(convertView == null)
{
v = appInflater.inflate(resource, parent,false);
final int[] to = appTo;
final int count = to.length;
final View[] holder = new View[count];
for(int i = 0; i < count; i++)
{
holder[i] = v.findViewById(to[i]);
}
v.setTag(holder);
}else
{
v = convertView;
}
bindView(position, v);
return v;
}
private void bindView(int position, View view)
{
final Map dataSet = appData.get(position);
if(dataSet == null)
{
return;
}
final ViewBinder binder = appViewBinder;
final View[] holder = (View[])view.getTag();
final String[] from = appFrom;
final int[] to = appTo;
final int count = to.length;
for(int i = 0; i < count; i++)
{
final View v = holder[i];
if(v != null)
{
final Object data = dataSet.get(from[i]);
String text = data == null ? "":data.toString();
if(text == null)
{
text = "";
}
boolean bound = false;
if(binder != null)
{
bound = binder.setViewValue(v, data, text);
}
if(!bound)
{
/**
* 自定义适配器,关在在这里,根据传递过来的控件以及值的数据类型,
* 执行相应的方法,可以根据自己需要自行添加if语句。另外,CheckBox等
* 集成自TextView的控件也会被识别成TextView,这就需要判断值的类型
*/
if(v instanceof TextView)
{
//如果是TextView控件,则调用SimpleAdapter自带的方法,设置文本
setViewText((TextView)v, text);
}else if(v instanceof ImageView){
//如果是ImageView控件,调用自己写的方法,设置图片
setViewImage((ImageView)v, (Drawable)data);
}else{
throw new IllegalStateException(v.getClass().getName() + " is not a " + "view that can be bounds by this SimpleAdapter");
}
}
}
}
}
public void setViewImage(ImageView v, Drawable value){
v.setImageDrawable(value);
}
}