In android, how does one set the desired app startup icon to a pop-up box?

In android, how does one set the desired app startup icon to a pop-up box?

First look

This is the effect of clicking on our own apk.

Below is the layout File <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + YWN0aXZpdHlfbWFpbi54bWzW97K8vtbOxLz + PGJyPgo8L3A + Signature = "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">
Android: layout_width = "match_parent"
Android: layout_height = "wrap_content"
Android: gravity = "center"
Android: layout_marginTop = "15dp"
Android: text = "@ string/app_name"/>


Android: id = "@ + id/allapps"
Android: layout_width = "match_parent"
Android: layout_height = "wrap_content"/>

I use a GridView as a container

Below is the layout file for a single item

Application_layout.xml

Android: layout_width = "match_parent"
Android: layout_height = "match_parent"
Android: orientation = "vertical"
Android: gravity = "center"
>

Android: id = "@ + id/app_icon"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: layout_marginTop = "15dp"/>

Android: id = "@ + id/app_title"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: textSize = "12sp"
Android: gravity = "center"/>

The following is AndroidManifest. xml, which is different from the common apk.

Package = "com. wind. lancherdemo"
Android: versionCode = "1"
Android: versionName = "1.0" type = "codeph" text = "/codeph">


Android: minSdkVersion = "17"
Android: targetSdkVersion = "17"/>


Android: allowBackup = "true"
Android: icon = "@ drawable/ic_launcher"
Android: label = "@ string/app_name">
Android: name = "com. wind. lancherdemo. MainActivity"
Android: theme = "@ android: style/Theme. Dialog"
Android: label = "@ string/app_name">

Below is the source file

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 MAllApps;
Private List MShowApps = new ArrayList ();
Private static final String [] mShowAppPkgNames = {"com. android. contacts "," com. android. mms "," com. android. browser "}; // you can add the apk package name to be filtered.
@ 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); // you can search for a specific tutorial on the Internet if you do not know how to set the GridView adapter.
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); // This is where we filter out the apk we want based on all the apk we have installed. This is to delete an application we need, our program is still normal
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 ));
}





// Click here to enter the specific application.
@ 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 );
}
// Here we rewrite our GridView Adapter
Private class GridItemAdapter extends BaseAdapter {
Private Context context;
Private List ResInfo;



Public GridItemAdapter (Context context, List 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;
}

// ViewHolder is used in this place to increase the app Running Speed instead of refactoring our convertView and searching for ImageView and TextView every time.
@ 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;
}
}


}