package com.example.loadapp;
import java.util.ArrayList;
import java.util.List;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.TextView;
public class MainActivity extends Activity
{
private List<ResolveInfo> list;
private ListAdapter adapter=new BaseAdapter()
{
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater = getLayoutInflater();
LinearLayout linearLayout = (LinearLayout)inflater.inflate(R.layout.item, null);
ImageView imageView = (ImageView)linearLayout.findViewById(R.id.imageView1);
TextView textView = (TextView)linearLayout.findViewById(R.id.textView1);
// imageView.setLayoutParams(new AbsListView.LayoutParams(96,96));
APP app = APPlist.get(position);
imageView.setImageDrawable(app.getIcon());
textView.setText(app.getLabel());
return linearLayout;
}
@Override
public long getItemId(int position)
{
// TODO Auto-generated method stub
return 0;
}
@Override
public Object getItem(int position)
{
// TODO Auto-generated method stub
return null;
}
@Override
public int getCount()
{
return APPlist.size();
}
};
private ArrayList<APP> APPlist;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GridView gridView =(GridView) findViewById(R.id.gridView1);
APPlist = new ArrayList<APP>();
PackageManager packageManager = getPackageManager();
Intent intent=new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
list = packageManager.queryIntentActivities(intent, 0);
for (int i = 0; i <list.size(); i++)
{
ActivityInfo activityInfo = list.get(i).activityInfo;
Drawable icon = activityInfo.loadIcon(getPackageManager());
CharSequence label = activityInfo.loadLabel(getPackageManager());
String packagename=activityInfo.packageName;
//android:name 就是該activity的類名
//android:name 就是該activity的類名
//android:name 就是該activity的類名
String itemname=activityInfo.name;
APP app = new APP(icon,label,packagename,itemname);
APPlist.add(app);
}
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
Intent intent002 = new Intent(Intent.ACTION_MAIN);
intent002.addCategory(Intent.CATEGORY_LAUNCHER);
APP app = APPlist.get(position);
intent002.setPackage(app.getPackagename());
//return intent 該方法是非常的重要和有用
//return intent 該方法是非常的重要和有用
//return intent 該方法是非常的重要和有用
//return intent 該方法是非常的重要和有用
intent002.setComponent(new ComponentName(app.getPackagename(), app.getItemname()));
startActivity(intent002);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
///////////////////////////////////////////////app的详细信息
package com.example.loadapp;
import android.graphics.drawable.Drawable;
public class APP
{
private Drawable icon;
private CharSequence label;
private String packagename;
private String itemname;
public APP(Drawable icon, CharSequence label, String packagename, String itemname)
{
this.icon=icon;
this.label=label;
this.packagename=packagename;
this.itemname=itemname;
}
/**
* @return 就是包中要啟動的類 的 類名
*/
public String getItemname()
{
return itemname;
}
/**
* @param itemname 就 是包中要啟動的類的 類名
*/
public void setItemname(String itemname)
{
this.itemname = itemname;
}
public String getPackagename()
{
return packagename;
}
public void setPackagename(String classname)
{
this.packagename = classname;
}
public Drawable getIcon()
{
return icon;
}
public void setIcon(Drawable icon)
{
this.icon = icon;
}
public CharSequence getLabel()
{
return label;
}
public void setLabel(CharSequence label)
{
this.label = label;
}
}
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