android:
id="@+id/passwordShow"
android:
layout_width="fill_parent"
android:
layout_height="wrap_content"
android:
textSize="18sp"
/>
二、长按图标抖动以及显示删除
功能：
将app列举在界面上，并且长按图标使图标进行抖动以及显示删除图标。
1.初始化一个gridview的适配器
2.通过不停转动图标实现图标的抖动以及添加删除图标
3.添加监听器实现长按图标使图标抖动及显示删除
完整代码
1.main_activity.java
publicclassMainActivityextendsActivity{
privatePackageManagermPackageManager;
privateGridViewmAppGrid;
privateListmAppList;
privateDrawablemColorDrawable;
privateGridViewAdaptermAdapter=null;
privatestaticintmAppState=0;
privatestaticfinalintAPP_DELFINISHED=0x1;
publicMainActivity（）{
//TODOAuto-generatedconstructorstub
}
@Override
publicbooleanonKeyDown（intkeyCode,KeyEventevent）{
if（keyCode==KeyEvent.KEYCODE_BACK&&event.getRepeatCount（）==0）{
if（mAppState==1）{
//resetAllAppIcon（）;
refreshAppList（）;
returntrue;
}
}
returnsuper.onKeyDown（keyCode,event）;
}
@Override
protectedvoidonCreate（BundlesavedInstanceState）{
//TODOAuto-generatedmethodstub
super.onCreate（savedInstanceState）;
mAppList=newArrayList（）;
getAppList（mAppList）;
setContentView（R.layout.activity_main）;
mAppGrid=（GridView）findViewById（R.id.app_list_grid）;
mAppGrid.setNumColumns（calculatorNumColumn（））;
mAdapter=newGridViewAdapter（mAppList,this,mPackageManager）;
mAppGrid.setAdapter（mAdapter）;
mAppGrid.setOnItemClickListener（clickListener）;
mAppGrid.setOnItemLongClickListener（itemLongClickListener）;
//mAppGrid.setOnTouchListener（newPicOnTouchListener（））;
}
@Override
protectedvoidonResume（）{
//TODOAuto-generatedmethodstub
super.onResume（）;
}
@Override
protectedvoidonPause（）{
//TODOAuto-generatedmethodstub
super.onPause（）;
}
@Override
protectedvoidonDestroy（）{
//TODOAuto-generatedmethodstub
super.onDestroy（）;
}
OnItemClickListenerclickListener=newOnItemClickListener（）{
@Override
publicvoidonItemClick（AdapterView
>parent,Viewview,intposition,longid）{
if（mAppState==1）{
PackageInfoinfo=mAppList.get（position）;
//Activity
UripackageURI=Uri.parse（"package:
"+info.applicationInfo.packageName）;
IntentuninstallIntent=newIntent（Intent.ACTION_DELETE,packageURI）;
startActivityForResult（uninstallIntent,APP_DELFINISHED）;
}
}
};
@Override
protectedvoidonActivityResult（intrequestCode,intresultCode,Intentdata）{
//TODOAuto-generatedmethodstub
super.onActivityResult（requestCode,resultCode,data）;
}
OnItemLongClickListeneritemLongClickListener=newOnItemLongClickListener（）{
@Override
publicbooleanonItemLongClick（AdapterView
>arg0,Viewarg1,intarg2,longarg3）{
//TODOAuto-generatedmethodstub
animAllAppIcon（）;
returntrue;
}
};
privatevoidgetAppList（Listlist）{
mPackageManager=getPackageManager（）;
Listpacks=mPackageManager.getInstalledPackages（0）;
if（packs!
=null&&packs.size（）>0）{
for（PackageInfoinfo:
packs）{
if（（info.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM）==0&&
（info.applicationInfo.flags&ApplicationInfo.FLAG_UPDATED_SYSTEM_APP）==0）{
list.add（info）;
}
}
}
}
privatevoidrefreshAppList（）{
mAppList.clear（）;
getAppList（mAppList）;
mAdapter.setData（mAppList）;
mAdapter.notifyDataSetChanged（）;
mAppState=0;
}
privatevoidanimAllAppIcon（）{
intnCount=mAppGrid.getChildCount（）;
mColorDrawable=mAppGrid.getSelector（）;
mAppGrid.setSelector（newColorDrawable（Color.TRANSPARENT））;
for（inti=0;iViewv=mAppGrid.getChildAt（i）;
RelativeLayoutlayout;
Animationshake;
//if（i%2==0）{
shake=AnimationUtils.loadAnimation（
MainActivity.this,R.anim.icon_anim_left）;
shake.reset（）;
shake.setFillAfter（true）;
//}
//else{
//shake=AnimationUtils.loadAnimation（
//MainActivity.this,R.anim.icon_anim_right）;
//shake.reset（）;
//shake.setFillAfter（true）;
//}
v.startAnimation（shake）;
layout=（RelativeLayout）v.findViewById（R.id.view_delete）;
layout.setVisibility（View.VISIBLE）;
}
mAppState=1;
}
privatevoidresetAllAppIcon（）{
intnCount=mAppGrid.getChildCount（）;
mAppGrid.setSelector（mColorDrawable）;
for（inti=0;iViewv=mAppGrid.getChildAt（i）;
RelativeLayoutlayout;
v.clearAnimation（）;
layout=（RelativeLayout）v.findViewById（R.id.view_delete）;
layout.setVisibility（View.INVISIBLE）;
}
mAppState=0;
}
privateintcalculatorNumColumn（）{
intnCol=5;
android.view.Displaydisplay=getWindowManager（）.getDefaultDisplay（）;
intwidthPIX=display.getWidth（）;
finalfloatscale=getResources（）.getDisplayMetrics（）.density;
nCol=（int）（widthPIX/scale/80）;
returnnCol;
}
/*privateclassPicOnTouchListenerimplementsOnTouchListener{
@Override
publicbooleanonTouch（Viewv,MotionEventevent）{
if（mAppState==1）{
resetAllAppIcon（）;
}
returntrue;
}
}*/
}
2.GridViewAdapter
publicclassGridViewAdapterextendsBaseAdapter{
ListmAppList=null;
PackageManagermPackageManager=null;
ViewmView=null;
ContextmContext=null;
publicGridViewAdapter（Listlist,Contextcontext,PackageManagermanager）{
mAppList=list;
mContext=context;
mPackageManager=manager;
}
@Override
publicintgetCount（）{
returnmAppList.size（）;
}
@Override
publicObjectgetItem（intposition）{
returnmAppList.get（position）;
}
@Override
publiclonggetItemId（intposition）{
returnposition;
}
@Override
publicViewgetView（intposition,ViewconvertView,ViewGroupparent）{
ImageViewi;
TextViewt;
if（convertView==null）{
convertView=LayoutInflater.from（mContext）.inflate（R.layout.app_list_item,null）;
}
i=（ImageView）convertView.findViewById（R.id.img_appicon）;
t=（TextView）convertView.findViewById（R.id.txt_appname）;
i.setScaleType（ImageView.ScaleType.FIT_CENTER）;
PackageInfoinfo=mAppList.get（position）;
i.setImageDrawable（info.applicationInfo.loadIcon（mPackageManager））;
t.setText（info.applicationInfo.loa
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