使用PackageManager和ResolverInfo

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test01"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test01.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Activity01"
android:label="@string/activity01"
android:icon="@drawable/authentication_name_n">
<intent-filter >
<action android:name="cxd.test.demo"/>
</intent-filter>
</activity>
<activity android:name=".Activity02"
android:label="@string/activity02"
android:icon="@drawable/box_tj_h">
<intent-filter >
<action android:name="cxd.test.demo"/>
</intent-filter>
</activity>
<activity android:name=".Activity03"
android:label="@string/activity03"
android:icon="@drawable/box_tj">
<intent-filter >
<action android:name="cxd.test.demo"/>
</intent-filter>
</activity>
</application>

</manifest>

public class MainActivity extends ListActivity {

private PackageManager mPackageManager;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPackageManager = getPackageManager();

List<ResolveInfo> activities = mPackageManager.queryIntentActivities(
makeDemoActivityIntent(), PackageManager.GET_META_DATA);
getListView().setAdapter(
new ActivityListAdapter(this, activities, mPackageManager));
}

protected Intent makeDemoActivityIntent() {
Intent intent = new Intent(Constants.DEMO_ACTION);
return intent;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
ActivityInfo resolveInfo = ((ResolveInfo) l.getItemAtPosition(position)).activityInfo;
Intent intent = new Intent();
intent.setComponent(new ComponentName(resolveInfo.packageName,
resolveInfo.name));
startActivity(intent);
}

}

Intent intent = new Intent(Constants.DEMO_ACTION);参数就是

<action android:name="cxd.test.demo"/>里的参数

public class ActivityListAdapter extends BaseAdapter {
private List<ResolveInfo> mData;
private LayoutInflater mInflater;
private PackageManager mPackageManager;

public ActivityListAdapter(Context context, List<ResolveInfo> data,
PackageManager packagetManager) {
mData = data;
mInflater = LayoutInflater.from(context);
mPackageManager = packagetManager;
}

@Override
public int getCount() {
return mData.size();
}

@Override
public ResolveInfo getItem(int position) {
return mData.get(position);
}

@Override
public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ResolveInfo resolveInfo = getItem(position);
if (null == convertView) {
convertView = mInflater.inflate(
android.R.layout.simple_list_item_1, parent, false);
}
((TextView) convertView)
.setText(resolveInfo.loadLabel(mPackageManager));
((TextView) convertView).setCompoundDrawables(
resolveInfo.loadIcon(mPackageManager), null, null, null);
return convertView;
}
}

在ListActivity中点击每一个item然后就可以进入到activity中去，如果要做中文匹配的话在res文件里面新建values-zh-rCN.xml配置文件中新建string.xml文件，写中文版的