/*

5k桌面 源码

作者：基哥

AndroidManifest.xml重要配置：

壁纸背景(三选一)：

android:theme="@android:style/Theme.Wallpaper"

android:theme="@android:style/Theme.Wallpaper.NoTitleBar"

android:theme="@android:style/Theme.Wallpaper.NoTitleBar.Fullscreen"

*/

package l.l;

import android.app.*;

import android.content.*;

import android.content.pm.*;

import android.os.*;

import android.view.*;

import android.widget.*;

import android.widget.AdapterView.*;

import java.util.*;

import android.util.*;

import android.net.*;

import android.provider.*;

public class l extends Activity {

GridView g;

private List apps;

int w,h,p;

Context c;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setTheme(android.R.style.Theme_Wallpaper_NoTitleBar);

/*

在AndroidManifest.xml添加

android:theme="@android:style/Theme.Wallpaper.NoTitleBar.Fullscreen"

再用setTheme，就型成一种启动效果

*/

if(Build.VERSION.SDK_INT==Build.VERSION_CODES.KITKAT)

{

getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);

}

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)

{

getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

getWindow().setStatusBarColor(0x00000000);

}

c=this;

DisplayMetrics metric = new DisplayMetrics();

getWindowManager().getDefaultDisplay().getMetrics(metric);

w = metric.widthPixels;

h = metric.heightPixels;

p=w/60;

apps = getPackageManager().queryIntentActivities(new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_LAUNCHER), 0);

g = new GridView(this);

g.setAdapter(new AppsAdapter());

g.setOnItemLongClickListener(new OnItemLongClickListener(){

@Override

public boolean onItemLongClick(AdapterView> a, View v, int i, long l)

{

String s=apps.get(i).activityInfo.packageName;

Intent localIntent = new Intent();

localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

if (Build.VERSION.SDK_INT >= 9) {

localIntent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);

localIntent.setData(Uri.fromParts("package", s, null));

} else if (Build.VERSION.SDK_INT <= 8) {

localIntent.setAction(Intent.ACTION_VIEW);

localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");

localIntent.putExtra("com.android.settings.ApplicationPkgName", s);

}

startActivity(localIntent);

return true;

}

});

g.setOnItemClickListener(new OnItemClickListener() {

@Override

public void onItemClick(AdapterView> adapterView, View view, int i, long l) {

ActivityInfo a=apps.get(i).activityInfo;

startActivity(new Intent().setComponent(new ComponentName(a.packageName, a.name)));

}

});

g.setNumColumns(5);

addContentView(g,new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));

}

public class AppsAdapter extends BaseAdapter {

@Override

public int getCount() {

return apps.size();

}

@Override

public Object getItem(int i) {

return apps.get(i);

}

@Override

public long getItemId(int i) {

return i;

}

@Override

public View getView(int in, View view, ViewGroup viewGroup) {

app a;

if(view == null){

a = new app();

ImageView i  ;

LinearLayout l;

TextView t;

l=new LinearLayout(c);

l.setOrientation(LinearLayout.VERTICAL);

l.setGravity(Gravity.CENTER);

i = new ImageView(c);

i.setPadding(p,p,p,p);

i.setScaleType(ImageView.ScaleType.FIT_CENTER);

i.setLayoutParams(new GridView.LayoutParams(w/6, w/6));

l.addView(i);

t=new TextView(c);

t.setMaxLines(1);

t.setGravity(Gravity.CENTER);

l.addView(t);

a.i=i;

a.t=t;

view=l;

view.setTag(a);

} else {

a=(app) view.getTag();

}

ActivityInfo app=apps.get(in).activityInfo;

a.i.setImageDrawable(app.loadIcon(getPackageManager()));

a.t.setText(app.loadLabel(getPackageManager()));

return view;

}

class app

{

ImageView i;

TextView t;

}

}

}