安卓開發(fā)實(shí)驗(yàn)報(bào)告目錄頁面跳轉(zhuǎn)長(zhǎng)按圖標(biāo)抖動(dòng)以及顯示刪除頁面跳轉(zhuǎn)功能：通過點(diǎn)擊button實(shí)現(xiàn)2個(gè)activity之間的跳轉(zhuǎn)。1.設(shè)置監(jiān)聽器監(jiān)聽點(diǎn)擊button2.使用intent傳輸數(shù)據(jù)完整代碼1.ui_test.javapublicclassUI_TestextendsActivity{@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.incident_activity_1);Buttonbt=(Button)findViewById(R.id.login);bt.setOnClickListener(newOnClickListener());}classOnClickListenerimplementsView.OnClickListener{ publicvoidonClick(Viewv){ EditTextname=(EditText)findViewById(R.); EditTextpassword=(EditText)findViewById(R.id.password); Bundledata=newBundle(); data.putString("name",name.getText().toString()); data.putString("password",password.getText().toString()); Intentintent=newIntent(UI_Test.this,UI_Result.class); intent.putExtras(data); startActivity(intent); }}2.ui_result.javapublicclassUI_ResultextendsActivity{ @Override protectedvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.incident_activity_2); TextViewname=(TextView)findViewById(R.Show); TextViewpassword=(TextView)findViewById(R.id.passwordShow); Intentintent=getIntent(); Bundleresult=intent.getExtras(); name.setText("您的用戶名為："+result.getString("name")); password.setText("您的密碼為："+result.getString("password"));通過不停轉(zhuǎn)動(dòng)圖標(biāo)實(shí)現(xiàn)圖標(biāo)的抖動(dòng)以及添加刪除圖標(biāo)添加監(jiān)聽器實(shí)現(xiàn)長(zhǎng)按圖標(biāo)使圖標(biāo)抖動(dòng)及顯示刪除完整代碼main_activity.javapublicclassMainActivityextendsActivity{ privatePackageManagermPackageManager; privateGridViewmAppGrid; privateList<PackageInfo>mAppList; 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<PackageInfo>(); 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(List<PackageInfo>list){ mPackageManager=getPackageManager(); List<PackageInfo>packs=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;i<nCount;i++){ Viewv=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;i<nCount;i++){ Viewv=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{@OverridepublicbooleanonTouch(Viewv,MotionEventevent){if(mAppState==1){ resetAllAppIcon();}returntrue;}}*/}GridViewAdapterpublicclassGridViewAdapterextendsBaseAdapter{ List<PackageInfo>mAppList=null; PackageManagermPackageManager=null; ViewmView=null; ContextmContext=null; publicGridViewAdapter(List<PackageInfo>list,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.loadLabel(mPackageManager)); returnconvertView; } publicvoidsetData(List<PackageInfo>list){ mAppList=list; } }activity_main.xml<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_marginTop="20dip"android:layout_marginBottom="20dip"android:layout_marginLeft="10dip"android:layout_marginRight="10dip"android:orientation="vertical"> <GridView android:id="@+id/app_list_grid" android:layout_width="match_parent" android:layout_height="match_parent" android:verticalSpacing="0dip" android:horizontalSpacing="0dip" android:numColumns="5"> </GridView></LinearLayout>app_list_item.xml<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="/apk/res/android"android:layout_width="wrap_content"android:layout_height="wrap_content"><FrameLayoutandroid:id="@+id/icon_framelayout"android:layout_centerInParent="true"android:layout_width="wrap_content" android:layout_height="wrap_content"><LinearLayoutandroid:id="@+id/view_app_info"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical"android:layout_marginTop="5dip" android:layout_marginBottom="5dip" android:layout_marginLeft="5dip" android:layout_marginRight="5dip"android:visibility="visible"> <ImageView android:id="@+id/img_appicon" android:layout_width="@android:dimen/app_icon_size" android:layout_height="@android:dimen/app_icon_size" android:contentDescription="