【移動應用開發(fā)技術】Android7.0中怎么使用 MTK設置默認桌面

【移動應用開發(fā)技術】Android7.0中怎么使用MTK設置默認桌面

本篇文章為大家展示了Android7.0中怎么使用MTK設置默認桌面，內容簡明扼要并且容易理解，絕對能使你眼前一亮，通過這篇文章的詳細介紹希望你能有所收獲。1.找到安裝應用的文件frameworks\base\services\core\java\com\android\server\pm\PackageManagerService.java

try

{

PackageParser.Package

newPackage

=

scanPackageTracedLI(pkg,

policyFlags,

scanFlags,

System.currentTimeMillis(),

user);

updateSettingsLI(newPackage,

installerPackageName,

null,

res,

user);

if

(res.returnCode

==

PackageManager.INSTALL_SUCCEEDED)

{

prepareAppDataAfterInstallLIF(newPackage);

Log.d("yh",

"pkgName

"

+pkgName);

//

由于客戶的應用保密

這里使用點心桌面的包名com.dianxinos.dxhome

if

(pkgName.equals("com.dianxinos.dxhome")){

//發(fā)送廣播

Intent

intent

=

new

Intent("ent.action.UPDATE_LANUCHER_APPS");

mContext.sendBroadcast(intent);

}

//

}

else

{

//

Remove

package

from

internal

structures,

but

keep

around

any

//

data

that

might

have

already

existed

deletePackageLIF(pkgName,

UserHandle.ALL,

false,

null,

PackageManager.DELETE_KEEP_DATA,

res.removedInfo,

true,

null);

}

}

catch

(PackageManagerException

e)

{

res.setError("Package

couldn't

be

installed

in

"

+

pkg.codePath,

e);

}

Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);

}2.由于設置默認桌面時，是在Settings中設置的所以廣播接收者在settings中添加并設置默認桌面（添加文件–packages\apps\Settings\src\com\android\settings下—UpdateLanucherReceiver.java）package

com.android.settings;

import

android.content.BroadcastReceiver;

import

android.content.Context;

import

android.content.Intent;

import

android.content.ComponentName;

import

android.content.IntentFilter;

import

android.content.pm.PackageManager;

import

android.content.pm.ResolveInfo;

import

java.util.ArrayList;

import

android.util.Log;

import

android.content.pm.ActivityInfo;

import

java.util.List;

public

class

UpdateLanucherReceiver

extends

BroadcastReceiver

{

public

UpdateLanucherReceiver()

{

}

@Override

public

void

onReceive(Context

context,

Intent

intent)

{

if

(intent.getAction().equals("ent.action.UPDATE_LANUCHER_APPS"))

{

Log.e("yhyh"

,"

onReceive");

final

PackageManager

mPm

=

context.getPackageManager();

//

點心桌面的包名類名

com.dianxinos.dxhome

/

com.nd.hilauncherdev.launcher.Launcher設置默認桌面

ComponentName

DefaultLauncher=new

ComponentName("

com.dianxinos.dxhome",

"com.nd.hilauncherdev.launcher.Launcher");

ArrayList<ResolveInfo>

homeActivities

=

new

ArrayList<ResolveInfo>();

ComponentName

currentDefaultHome

=

mPm.getHomeActivities(homeActivities);

ComponentName[]mHomeComponentSet

=

new

ComponentName[homeActivities.size()];

for

(int

i

=

0;

i

<

homeActivities.size();

i++)

{

final

ResolveInfo

candidate

=

homeActivities.get(i);

Log.e("yhyh","homeActivitie:

candidate

=

"+candidate);

final

ActivityInfo

activityInfo=

candidate.activityInfo;

ComponentName

activityName

=

new

ComponentName(activityInfo.packageName,

activityI);

mHomeComponentSet[i]

=

activityName;

}

IntentFilter

mHomeFilter

=

new

IntentFilter(Intent.ACTION_MAIN);

mHomeFilter.addCategory(Intent.CATEGORY_HOME);

mHomeFilter.addCategory(Intent.CATEGORY_DEFAULT);

List<ComponentName>Activities=new

ArrayList();

mPm.replacePreferredActivity(mHomeFilter,

IntentFilter.MATCH_CATEGORY_EMPTY,mHomeComponentSet,

DefaultLauncher);

//刷新桌面

Intent

intent2

=

new

Intent(Intent.ACTION_MAIN);

intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent2.addCategory(Intent.CATEGORY_HOME);

context.startActivity(intent2);

}

}

}3.packages\apps\Settings\AndroidManifest.