開發(fā)一個android桌面

開發(fā)一個android桌面1，關(guān)于lancher要開發(fā)一個自己的桌面，作為程序員，覺得好多的應(yīng)用都在偷偷的跑流量。開發(fā)一個桌面程序，然后常駐系統(tǒng)服務(wù)，定時檢查服務(wù)。對系統(tǒng)的其他應(yīng)用網(wǎng)絡(luò)進行監(jiān)控。把一些常用的功能集成進來。做一個訊飛的語音服務(wù)。實現(xiàn)一些簡單的人機交互。2，修改配置文件在AndroidManifest.xml配置文件中增加兩行即可。<activityandroid:name=".MainActivity"><intent-filter><!--增加lancher配置--><categoryandroid:name="ent.category.HOME"/><categoryandroid:name="ent.category.DEFAULT"/><actionandroid:name="ent.action.MAIN"/><categoryandroid:name="ent.category.LAUNCHER"/></intent-filter></activity>然后這個默認(rèn)的activity程序就成桌面了。按home的時候。會彈出一個選擇框選擇桌面。3，進行優(yōu)化查詢?nèi)縜ppIntentmainIntent=newIntent(Intent.ACTION_MAIN,null);mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);newImageView(MainActivity.this);apps=getPackageManager().queryIntentActivities(mainIntent,0);if(apps!=null){for(ResolveInforesolveInfo:apps){Log.v(TAG,resolveInfo.toString());}}把返回的app顯示到主界面中。實現(xiàn)一個BaseAdapter類。實現(xiàn)getView方法。ResolveInfoinfo=apps.get(i);ViewconvertView=LayoutInflater.from(mContent).inflate(R.layout.text_img_view,null);ImageViewimage=(ImageView)convertView.findViewById(R.id.image);TextViewtext=(TextView)convertView.findViewById(R.id.text);//設(shè)置文字和圖片。text.setText(info.loadLabel(getPackageManager()));image.setImageDrawable(info.activityInfo.loadIcon(getPackageManager()));//convertView.setScaleType(ImageView.ScaleType.FIT_CENTER);//使用dp進行參數(shù)設(shè)置。進行分辨率適配。convertView.setLayoutParams(newGridView.LayoutParams((int)mResources.getDimension(R.dimen.app_width),(int)mResources.getDimension(R.dimen.app_height)));//返回一個圖文混合。returnconvertView;定義了一個layout<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><ImageViewandroid:id="@+id/image"android:layout_width="50dp"android:layout_height="50dp"android:layout_gravity="center_horizontal"/><TextViewandroid:id="@+id/text"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center"/></LinearLayout>上面是圖片，下面是文字。還定義了寬度和高度<resources><dimenname="app_width">90dp</dimen><dimenname="app_height">90dp</dimen></resources>運行效果：很接近了。最后在設(shè)置下打開。壁紙啥的。就都一樣了。4，全部代碼packagecom.demo.lanchertest;importandroid.content.ComponentName;importandroid.content.Context;importandroid.content.Intent;importandroid.content.pm.ResolveInfo;importandroid.content.res.Resources;import.Uri;importandroid.support.v7.app.AppCompatActivity;importandroid.os.Bundle;importandroid.util.Log;importandroid.view.LayoutInflater;importandroid.view.View;importandroid.view.ViewGroup;importandroid.widget.AbsListView;importandroid.widget.AdapterView;importandroid.widget.BaseAdapter;importandroid.widget.GridView;importandroid.widget.ImageView;importandroid.widget.TextView;importcom.google.android.gms.appindexing.Action;importcom.google.android.gms.appindexing.AppIndex;importcom.google.android.gms.appindexing.Thing;importmon.api.GoogleApiClient;importjava.security.AccessControlContext;importjava.util.List;importstaticjava.security.AccessController.getContext;publicclassMainActivityextendsAppCompatActivity{publicstaticfinalStringTAG="Lancher";@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(InstanceState);setContentView(R.layout.activity_main);//加載app應(yīng)用。loadApps();GridViewgridView=(GridView)findViewById(R.id.apps_list);//設(shè)置默認(rèn)適配器。mContent=getApplicationContext();mResources=getResources();gridView.setAdapter(newAppsAdapter());//gridView.setOnItemClickListener(clickListener);}privateAdapterView.OnItemClickListenerclickListener=newAdapterView.OnItemClickListener(){@OverridepublicvoidonItemClick(AdapterView<?>adapterView,Viewview,inti,longl){ResolveInfoinfo=apps.get(i);//該應(yīng)用的包名Stringpkg=info.activityInfo.packageName;//應(yīng)用的主activity類Stringcls=info.activityI;ComponentNamecomponet=newComponentName(pkg,cls);Intentintent=newIntent();intent.setComponent(componet);startActivity(intent);}};privateList<ResolveInfo>apps;privateResourcesmResources;privateContextmContent;privatevoidloadApps(){IntentmainIntent=newIntent(Intent.ACTION_MAIN,null);mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);newImageView(MainActivity.this);apps=getPackageManager().queryIntentActivities(mainIntent,0);if(apps!=null){for(ResolveInforesolveInfo:apps){Log.v(TAG,resolveInfo.toString());}}}publicclassAppsAdapterextendsBaseAdapter{publicAppsAdapter(){}@OverridepublicintgetCount(){returnapps.size();}@OverridepublicObjectgetItem(inti){returnapps.get(i);}@OverridepubliclonggetItemId(inti){returni;}@OverridepublicViewgetView(inti,Viewview,ViewGroupviewGroup){ResolveInfoinfo=apps.get(i);ViewconvertView=LayoutInflater.from(mContent).inflate(R.layout.text_img_view,null);ImageViewimage=(ImageView)convertView.findViewById(R.id.ima