实现app第一次安装浮层引导View！

在我们第一次安装app的时候，有一些app会出现一个覆盖在我们原来View上面的浮层view，用来做一个app的指示，让用户更快的知道app的整体架构和功能点。下面大家看一下效果图；

这就是我们要出现的效果。首先我们需要实现的功能点大概就是，在第一次安装的时候我们才会去触发这个浮层view的效果，我们就需要去保存这个。我们还需要去绘制一个浮层view在盖在原有的view上面，需要写一个列表，当他下拉的时候，符合某些条件就触发一个浮层。大概的要求我们知道了就可以开工了，

我们先看一下整体的项目结构：大概的架构也跃然于屏了，获取屏幕像素的工具类，浮层view管理者，构造类，对象类，主类实现效果和一点小小逻辑。

我们先从像素工具类开始看：

ScreenUtils

package com.newbieguide;import android.app.Activity;
import android.app.Application;
import android.content.Context;
import android.graphics.Rect;
import android.util.DisplayMetrics;import java.lang.reflect.Field;/*** 获取手机屏幕参数的功能工具类* Created by nzx on 2016/9/2.* 屏幕区域的获取  ：就是整个手机的可见范围* activity.getWindowManager().getDefaultDisplay();* 应用区域的获取：就是没有包括 那些 应用商，时间的那个栏 剩下的部分=屏幕部分减去时间栏* <p/>* Rect outRect = new Rect();* activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(outRect);* 我们绘制view的绘制：就是应用区域 减去（我们没有隐藏标题栏应用状态下（ this.requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏  ） ）的部分=View 部分* <p/>* Rect outRect = new Rect();* activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getDrawingRect(outRect);*/
public class ScreenUtils {private ScreenUtils() {throw new AssertionError();}//屏幕距离（dp）转换成像素距离（px）public static float dpToPx(Context context, float dp) {if (context == null) {return -1;}return dp * context.getResources().getDisplayMetrics().density;}public static int dpToPx(Context context, int dp) {return (int) (dp * context.getResources().getDisplayMetrics().density);}/*** 获取屏幕宽度* DisplayMetrics 这是 一个系统 用来 专门 管理 手机 像素 屏幕尺寸的类*/public static int getScreenWidth(Context context) {DisplayMetrics dm = context.getResources().getDisplayMetrics();int screenHeight = dm.widthPixels;return screenHeight;}/*** 获取屏幕高度*/public static int getScreenHeight(Context context) {DisplayMetrics dm = context.getResources().getDisplayMetrics();int screenHeight = dm.heightPixels;return screenHeight;}/*** 获取状态栏的高*/public static int getStatusBarHeight(Activity context) {Rect frame = new Rect();context.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);int statusBarHeight = frame.top;if (0 == statusBarHeight) {statusBarHeight = getStatusBarHeightByReflection(context);}return statusBarHeight;}public static int getStatusBarHeight1(Activity context) {Rect rect = new Rect();context.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);int statuBarHeight = rect.top;if (0 == statuBarHeight) {statuBarHeight = getStatusBarHeightByReflection(context);}return statuBarHeight;}//获取状态栏高度 。public static int getStatusBarHeightByReflection(Context context) {Class<?> c;Object obj;Field field;// 默认为38，貌似大部分是这样的int x, statusBarHeight = 38;try {c = Class.forName("com.android.internal.R$dimen");obj = c.newInstance();field = c.getField("status_bar_height");x = Integer.parseInt(field.get(obj).toString());statusBarHeight = context.getResources().getDimensionPixelSize(x);} catch (Exception e1) {e1.printStackTrace();}return statusBarHeight;}
}

我生疏一点的方法我都会去写上注释这样看来也比较轻松。

下面我们开始绘制我们的表面的浮层view了

GuideView

package com.newbieguide;import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BlurMaskFilter;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.widget.RelativeLayout;import java.util.List;/*** Created by nzx on 2016/9/2.* 我们实现浮层指引view的业务代码逻辑的实现*/
public class GuideView extends RelativeLayout {private int mBgColor = 0xb2000000;private float mStrokeWidth;private Paint mPaint;private Bitmap mBitmap;private RectF mBitmapRect;private Canvas mCanvas;private List<HoleBean> mHoleList;private PorterDuffXfermode pdf;public GuideView(Context context) {super(context);init();}public GuideView(Context context, AttributeSet attrs) {super(context, attrs);init();}public GuideView(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);init();}private void init() {pdf = new PorterDuffXfermode(PorterDuff.Mode.CLEAR);mPaint = new Paint();mPaint.setAntiAlias(true);mPaint.setColor(mBgColor);mPaint.setMaskFilter(new BlurMaskFilter(10, BlurMaskFilter.Blur.INNER));mBitmapRect = new RectF();setClickable(true);setWillNotDraw(false);}public void setDate(List<HoleBean> holeList) {mHoleList = holeList;if (mHoleList != null && !mHoleList.isEmpty()) {for (HoleBean hole : mHoleList) {mBitmapRect.union(hole.getRectF());}}mStrokeWidth = Math.max(Math.max(mBitmapRect.left, mBitmapRect.top), Math.max(ScreenUtils.getScreenWidth(getContext()) -mBitmapRect.right, ScreenUtils.getScreenHeight(getContext()) - mBitmapRect.bottom));if (mBitmapRect.width() > 0 && mBitmapRect.height() > 0) {mBitmap = Bitmap.createBitmap((int) mBitmapRect.width(), (int) mBitmapRect.height(), Bitmap.Config.ARGB_8888);} else {mBitmap = Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888);throw new UnsupportedOperationException("需要高亮的view尚未加载完，请调整适当的时机或者延迟");}mCanvas = new Canvas(mBitmap);mCanvas.drawColor(mBgColor);}@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);if (mHoleList != null && mHoleList.size() > 0) {mPaint.setXfermode(pdf);mPaint.setStyle(Paint.Style.FILL);for (HoleBean hole : mHoleList) {RectF rectF = hole.getRectF();rectF.offset(-mBitmapRect.left, -mBitmapRect.top);switch (hole.getType()) {case HoleBean.TYPE_CIRCLE:mCanvas.drawCircle(rectF.centerX(), rectF.centerY(), hole.getRadius(), mPaint);break;case HoleBean.TYPE_RECTANGLE:mCanvas.drawRect(rectF, mPaint);break;case HoleBean.TYPE_OVAL:mCanvas.drawOval(rectF, mPaint);break;}}canvas.drawBitmap(mBitmap, mBitmapRect.left, mBitmapRect.top, null);//绘制剩余空间的矩形mPaint.setXfermode(null);mPaint.setStyle(Paint.Style.STROKE);mPaint.setStrokeWidth(mStrokeWidth + 0.1f);canvas.drawRect(fillRect(mBitmapRect), mPaint);}}private RectF fillRect(RectF rectF) {RectF fillRect = new RectF();fillRect.left = rectF.left - mStrokeWidth / 2;fillRect.top = rectF.top - mStrokeWidth / 2;fillRect.right = rectF.right + mStrokeWidth / 2;fillRect.bottom = rectF.bottom + mStrokeWidth / 2;return fillRect;}public void recycler() {if (mBitmap != null) {mBitmap.recycle();mBitmap = null;}}}

浮层view 的一些封装的对象类

HoleBean

package com.newbieguide;import android.graphics.RectF;
import android.view.View;/*** Created by nzx on 2016/9/2.*改变原有的对象类   ，覆盖在原有层上面的表面view*/
public class HoleBean {public static final int TYPE_CIRCLE = 0; //圆public static final int TYPE_RECTANGLE = TYPE_CIRCLE + 1;   //长方形public static final int TYPE_OVAL = TYPE_RECTANGLE + 1;   //椭圆private View mHole;private int mType;public HoleBean(View hole, int type) {this.mHole = hole;this.mType = type;}//获得我们需要绘制的浮层view 宽，高public int getRadius() {return mHole != null ? Math.min(mHole.getWidth(), mHole.getHeight()) / 2 : 0;}public RectF getRectF() {RectF rectF = new RectF();if (mHole != null) {int[] location = new int[2];mHole.getLocationOnScreen(location);rectF.left = location[0];rectF.top = location[1];rectF.right = location[0] + mHole.getWidth();rectF.bottom = location[1] + mHole.getHeight();}return rectF;}public int getType() {return mType;}}

下面就是我们怎么去设置浮层view的管理者类咯，这里对于我们来说就比较重要，想要什么样式，点击事件，时间的回调，什么字的那个操作都需要在这边进行修改。

 NewbieGuide

package com.newbieguide;import android.app.Activity;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;import java.util.ArrayList;
import java.util.List;/*** Created by nzx on 2016/9/2.* 新的页面层*/
public class NewbieGuide {public static final int CENTER = 0;private boolean mEveryWhereTouchable = true;private OnGuideChangedListener mOnGuideChangedListener;private List<HoleBean> mHoleList;private Activity mActivity;private GuideView mGuideView;private FrameLayout mParentView;public NewbieGuide(Activity activity) {init(activity);}//初始化我们的整个视图private NewbieGuide init(Activity activity) {mActivity = activity;mParentView = (FrameLayout) mActivity.getWindow().getDecorView();mGuideView = new GuideView(mActivity);mHoleList = new ArrayList<>();return this;}//添加 我们高亮view的 视图  对象public NewbieGuide addHighLightView(View view, int type) {HoleBean hole = new HoleBean(view, type);mHoleList.add(hole);return this;}//蒙版提示图标public NewbieGuide addIndicateImg(int id, int offsetX, int offsetY) {ImageView arrowImg = new ImageView(mActivity);arrowImg.setImageResource(id);mGuideView.addView(arrowImg, getLp(offsetX, offsetY));return this;}//   蒙版提示的消息public NewbieGuide addMessage(String msg, int offsetX, int offsetY) {mGuideView.addView(generateMsgTv(msg), getLp(offsetX, offsetY));return this;}//蒙版提示的消息文本public NewbieGuide addKnowTv(String text, int offsetX, int offsetY) {mGuideView.addView(generateKnowTv(text), getLp(offsetX, offsetY));return this;}//蒙版提示的消息文本的显示位置public NewbieGuide addMsgAndKnowTv(String msg, int offsetY) {mGuideView.addView(generateMsgAndKnowTv(msg), getLp(CENTER, offsetY));return this;}//生成提示文本private TextView generateMsgTv(String msg) {TextView msgTv = new TextView(mActivity);msgTv.setText(msg);msgTv.setTextColor(0xffffffff);msgTv.setTextSize(15);//设置文本的行距间距msgTv.setLineSpacing(ScreenUtils.dpToPx(mActivity, 5), 1f);//文本的相对位置msgTv.setGravity(Gravity.CENTER);return msgTv;}//生成我知道了文本private TextView generateKnowTv(String text) {TextView knowTv = new TextView(mActivity);knowTv.setTextColor(0xffffffff);knowTv.setTextSize(15);knowTv.setPadding(ScreenUtils.dpToPx(mActivity, 15), ScreenUtils.dpToPx(mActivity, 5), ScreenUtils.dpToPx(mActivity, 15),ScreenUtils.dpToPx(mActivity, 5));knowTv.setBackgroundResource(R.drawable.solid_white_bg);knowTv.setText(text);knowTv.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Toast.makeText(mActivity,"继续下一个动画",Toast.LENGTH_LONG).show();remove();}});return knowTv;}private TextView generateKnowTv1(String text) {TextView knowTv1 = new TextView(mActivity);knowTv1.setTextColor(0xffffffff);knowTv1.setTextSize(15);knowTv1.setPadding(ScreenUtils.dpToPx(mActivity, 15), ScreenUtils.dpToPx(mActivity, 5), ScreenUtils.dpToPx(mActivity, 15),ScreenUtils.dpToPx(mActivity, 5));knowTv1.setBackgroundResource(R.drawable.solid_white_bg);knowTv1.setText(text);knowTv1.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {remove();}});return knowTv1;}//生成提示文本和我知道了文本private LinearLayout generateMsgAndKnowTv(String msg) {LinearLayout container = new LinearLayout(mActivity);container.setOrientation(LinearLayout.VERTICAL);container.setGravity(Gravity.CENTER_HORIZONTAL);LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);container.addView(generateMsgTv(msg), lp);lp.topMargin = ScreenUtils.dpToPx(mActivity, 10);container.addView(generateKnowTv("就你TM话多"), lp);return container;}//生成布局参数private RelativeLayout.LayoutParams getLp(int offsetX, int offsetY) {RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);//水平方向if (offsetX == CENTER) {lp.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);} else if (offsetX < 0) {lp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);lp.rightMargin = -offsetX;} else {lp.leftMargin = offsetX;}//垂直方向if (offsetY == CENTER) {lp.addRule(RelativeLayout.CENTER_VERTICAL, RelativeLayout.TRUE);} else if (offsetY < 0) {lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);lp.bottomMargin = -offsetY;} else {lp.topMargin = offsetY;}return lp;}public void show() {int paddingTop = ScreenUtils.getStatusBarHeight(mActivity);mGuideView.setPadding(0, paddingTop, 0, 0);mGuideView.setDate(mHoleList);mParentView.addView(mGuideView, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));if (mOnGuideChangedListener != null) mOnGuideChangedListener.onShowed();if (mEveryWhereTouchable) {mGuideView.setOnTouchListener(new View.OnTouchListener() {@Overridepublic boolean onTouch(View v, MotionEvent event) {remove();return false;}});}}public void remove() {if (mGuideView != null && mGuideView.getParent() != null) {mGuideView.recycler();((ViewGroup) mGuideView.getParent()).removeView(mGuideView);if (mOnGuideChangedListener != null) {mOnGuideChangedListener.onRemoved();}}}public NewbieGuide setEveryWhereTouchable(boolean everyWhereTouchable) {mEveryWhereTouchable = everyWhereTouchable;return this;}public void setOnGuideChangedListener(OnGuideChangedListener onGuideChangedListener) {this.mOnGuideChangedListener = onGuideChangedListener;}//浮层显示后的回调public interface OnGuideChangedListener {void onShowed();void onRemoved();}}

下面这个类我们就实现了一个相关的点击等时间了比如怎么设置高亮区，我们的按钮回调等，像是我们需要很多自定义操作都在这里可以实现

NewbieGuideManager

package com.newbieguide;import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Handler;
import android.view.View;
import android.widget.Toast;/*** Created by nzx on 2016/9/2.* 新的指引页面管理者*/
public class NewbieGuideManager {static final String TAG = "newbie_guide";public static final int TYPE_LIST = 0;// listpublic static final int TYPE_COLLECT = 1;// 收藏Activity mActivity;SharedPreferences sp;    NewbieGuide mNewbieGuide;int mType;public NewbieGuideManager(Activity activity, int type) {mNewbieGuide = new NewbieGuide(activity);sp = activity.getSharedPreferences(TAG, Activity.MODE_PRIVATE);mActivity = activity;mType = type;}//添加 我们高亮view的 视图public NewbieGuideManager addView(View view, int shape) {mNewbieGuide.addHighLightView(view, shape);return this;}public void show() {show(0);}public void show(int delayTime) {SharedPreferences.Editor editor = sp.edit();editor.putBoolean(TAG + mType, false);editor.apply();new Handler().postDelayed(new Runnable() {@Overridepublic void run() {switch (mType) {case TYPE_LIST:mNewbieGuide.setEveryWhereTouchable(false).addIndicateImg(R.drawable.left_arrow, ScreenUtils.dpToPx(mActivity,60), ScreenUtils.dpToPx(mActivity, 110)).addMsgAndKnowTv("这个listview滚动到item6后出现新手引导浮层，\n只有点击我知道啦才会想消失",-ScreenUtils.dpToPx(mActivity, 250)).show();Toast.makeText(mActivity,"辣鸡",Toast.LENGTH_LONG).show();break;case TYPE_COLLECT:mNewbieGuide.addIndicateImg(R.drawable.right, ScreenUtils.dpToPx(mActivity, -70), ScreenUtils.dpToPx(mActivity,50)).addMsgAndKnowTv("写了一个测试的，随便点击哪里都可以\n废话就不那么多了，你们看看吧", ScreenUtils.dpToPx(mActivity, 150)).show();break;}}}, delayTime);}public void showWithListener(int delayTime, NewbieGuide.OnGuideChangedListener onGuideChangedListener) {mNewbieGuide.setOnGuideChangedListener(onGuideChangedListener);show(delayTime);}/*** 判断新手引导也是否已经显示了*/public static boolean isNeverShowed(Activity activity, int type) {return activity.getSharedPreferences(TAG, Activity.MODE_PRIVATE).getBoolean(TAG + type, true);}}

下面就开始写我们的listview列表了，这个都很熟悉了适配器布局item 都是轻车熟路了布局我就不贴了后面可以拿demo看

ListAdapter

package com.newbieguide;import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;import java.util.List;/*** Created by nzx on 2016/9/2.*/
class ListAdapter extends BaseAdapter {private List<String> mList;private LayoutInflater inflater;private Context context;public ListAdapter(List<String> list,Context context) {mList = list;this.context = context;this.inflater = LayoutInflater.from(context);}@Overridepublic int getCount() {return mList != null ? mList.size() : 0;}@Overridepublic Object getItem(int position) {return mList != null ? mList.get(position) : null;}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {final ViewHolder holder;if(convertView == null) {holder = new ViewHolder();convertView = View.inflate(context,R.layout.item, null) ;holder.logo = (ImageView) convertView.findViewById(R.id.logo);holder.item = (TextView) convertView.findViewById(R.id.details);convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}holder.item.setText(mList.get(position).toString());return convertView;}
}class ViewHolder {ImageView logo;TextView item;
}

下面的MainActivity 实现的逻辑就是第一次一进来app
我们就实现浮层view ，还有一些关于 listview的相关操作

package com.newbieguide;import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;import java.security.KeyStore;
import java.util.ArrayList;
import java.util.List;public class MainActivity extends Activity implements AbsListView.OnScrollListener {private ImageView mCollect;private TextView mTitleTv;private ListView mListView;private List<String> mList;private boolean isShow;SharedPreferences sp;private boolean isFirst = false;//是否第一次打开Appprivate Handler handler = new Handler();@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);init();initData();}private void initData(){sp= getSharedPreferences("WelcomeActivity", 0);isFirst = sp.getBoolean("isFirst",true);//判断是否第一次打开App,是的话跳转到引导页，否则跳转到主页if (isFirst) {handler.postDelayed(new Runnable() {@Overridepublic void run() {/**  if (NewbieGuideManager.isNeverShowed(MainActivity.this, NewbieGuideManager.TYPE_COLLECT)) {new NewbieGuideManager(MainActivity.this, NewbieGuideManager.TYPE_COLLECT).addView(mCollect, HoleBean.TYPE_CIRCLE).addView(mTitleTv,HoleBean.TYPE_RECTANGLE).show();}  */onWindowFocusChanged(true);}}, 550);SharedPreferences.Editor editor = sp.edit();editor.putBoolean("isFirst", false);editor.commit();} else {handler.postDelayed(new Runnable() {@Overridepublic void run() {onWindowFocusChanged(false);}}, 2000);}}private void init() {mCollect = (ImageView) findViewById(R.id.collect);mTitleTv = (TextView) findViewById(R.id.title);mListView = (ListView) findViewById(R.id.list);mList = new ArrayList<>();for (int i = 0; i < 50; i++) {mList.add("Item:" + i);}mListView.setAdapter(new ListAdapter(mList,getApplicationContext()));mListView.setOnScrollListener(this);}@Overrideprotected void onResume() {super.onResume();}/**如果刚启动Activity时就要计算这些数据，最好在 onWindowFocusChanged  函数中进行，否则得到的某些数据可能是错误的，比如，应用区域高宽的获取  */@Overridepublic void onScrollStateChanged(AbsListView view, int scrollState) {}@Overridepublic void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {if(firstVisibleItem >= 6 && NewbieGuideManager.isNeverShowed(this, NewbieGuideManager.TYPE_LIST) && !isShow) {isShow = true;mListView.smoothScrollToPosition(6);mListView.postDelayed(new Runnable() {@Overridepublic void run() {mListView.setSelection(6);mListView.post(new Runnable() {@Overridepublic void run() {new NewbieGuideManager(MainActivity.this, NewbieGuideManager.TYPE_LIST).addView(view.getChildAt(0).findViewById(R.id.logo), HoleBean.TYPE_RECTANGLE).show();}});}}, 200);}}@Overrideprotected void onDestroy() {super.onDestroy();//todo 下面代码需要删掉/** SharedPreferences.Editor editor = getSharedPreferences("newbie_guide", MODE_PRIVATE).edit();editor.putBoolean("newbie_guide" + NewbieGuideManager.TYPE_LIST, true);editor.putBoolean("newbie_guide" + NewbieGuideManager.TYPE_COLLECT, true);editor.apply();   */}public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); if(NewbieGuideManager.isNeverShowed(this, NewbieGuideManager.TYPE_COLLECT)){
new NewbieGuideManager(this, NewbieGuideManager.TYPE_COLLECT).addView(mCollect, HoleBean.TYPE_CIRCLE).addView(mTitleTv, HoleBean.TYPE_RECTANGLE).show(); } }}

这里的逻辑都在 ui操作里面我们操作过了app 就改变布尔值来通过

onWindowFocusChanged（true或者false）来决定我们是不是需要 在去拉起浮层view。
new NewbieGuideManager(this, NewbieGuideManager.TYPE_COLLECT).addView(mCollect, HoleBean.TYPE_CIRCLE).addView(mTitleTv,HoleBean.TYPE_RECTANGLE).show();

这个方法我们可以觉得显示view的对象，样式，和我们需要显示的高亮区域等。
通过这个能对 view 和轻量级存储，listview 像素计算有不错的进步的。
大家有什么疑问欢迎大家来群 166120952 互相伤害。
demo 下载链接：http://download.csdn.net/detail/ningzhouxu/9620324

实现app第一次安装浮层引导View！相关推荐

国行iphone第一次安装APP网络状况
国行手机第一次安装APP,会有请求网络权限的一个弹框出现,在这期间APP是没有任何网络连接的. 想必大部分APP的需求和这个逻辑有冲突. 先推荐一个链接:http://www.cocoachina.c ...
APP第一次走引导页面的方法
很多时候APP需要在用户安装后只在第一次启动显示引导页面. 代码在AppDelegate.m中,进行判断,在其他页面也可以判断 if (![[NSUserDefaultsstandardUserDe ...
【Android 小功能】启动 App 时实现启动页、引导页功能，并且只在第一次启动 App 时跳入引导页面
[Android]如何实现启动APP时引导页.欢迎页功能之(一)引导页功能的实现 [Android]如何实现启动APP时引导页.欢迎页功能设置之(二)设置只在第一次启动APP时跳入引导界面
MacBook Air 2014 安装NVME硬盘并纯UEFI安装和引导Win7
前言: 本文是关于在苹果笔记本上安装NVME固态硬盘.纯UEFI安装及引导win7的实践,供电脑爱好者参考. 手里有一台MacBook Air(MBA) 2014,256G,跟现在的笔记本比较,性能肯 ...
android 点击图标重启,Android应用第一次安装成功点击“打开”后Home键切出应用后再点击桌面图标返回导致应用重启问题的解决方法...
Android应用第一次安装成功点击"打开"后Home键切出应用后再点击桌面图标返回导致应用重启问题的解决方法 if((getIntent().getFlags() & I ...
Android 系统（78）---《android framework常用api源码分析》之 app应用安装流程
<android framework常用api源码分析>之 app应用安装流程 <android framework常用api源码分析>android生态在中国已经发展非常庞大 ...
分析APP的安装流程 API29
先总结一下安装流程,以及比较重要的类 PackageInstallerActivity.java: 在文件管理器里点击apk后就会调用该类,主要用于显示要安装的apk的一些权限信息. InstallA ...
致第一次安装RIME的你
转载自百度RIME吧,作者:半月湾C 原帖地址:http://tieba.baidu.com/p/3288634121 序言很喜欢小狼毫输入法,喜欢他的简洁,美观以及超强悍的个人定制功能.关于 R ...
黑苹果放html5卡,小白第一次安装黑苹果，然后卡代码，别着急，教你一个通用步骤，一个一个排查，大部分是可以解决的，毕竟安装不是最难的一个步骤...
总所周知如果安装黑苹果出现问题了问题肯定是出现在EFI文件当然也有少部分是你的电脑硬件问题今天的教程主要针对前者有卡代码的兄弟打开你的EFI文件夹吧小白今天教你如何给你的EFI治病有病 ...

实现app第一次安装浮层引导View！

实现app第一次安装浮层引导View！相关推荐

最新文章

热门文章