android 帮助页

package com.weidingqiang.custommooc.activitys;

import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageView;

import com.weidingqiang.custommooc.R;

import java.util.ArrayList;
import java.util.List;

/**
* 引导页
*/
public class GuideActivity extends AppCompatActivity implements View.OnClickListener{

private static final String TAG = GuideActivity.class.getSimpleName();

private ViewPager viewPager;

private Button guideButton;

private int[] imgIds;
private List<ImageView> imageViews ;

//是否显示按钮
private boolean isshow;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setContentView(R.layout.activity_guide);

//设置全屏
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);

initData();
initUI();
}

/**
* 绑定UI
*/
private void initUI(){
viewPager = (ViewPager) this.findViewById(R.id.guide_viewPager);
guideButton = (Button) this.findViewById(R.id.guide_button);
guideButton.setOnClickListener(this);

initImageData();

viewPager.setAdapter(pagerAdapter);

viewPager.addOnPageChangeListener(onPageChangeListener);
}

/**
* 初始化数据
*/
private void initData(){
imgIds = new int[] { R.mipmap.guide_image1,R.mipmap.guide_image2,
R.mipmap.guide_image3,R.mipmap.guide_image4,R.mipmap.guide_image5};
imageViews = new ArrayList<ImageView>();
}

private void initImageData()
{
for (int imgId : imgIds)
{
ImageView imageView = new ImageView(getApplicationContext());
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setImageResource(imgId);
imageViews.add(imageView);
}
}

@Override
public void onClick(View v) {

finish();
}

/**
* PagerAdapter 监听器
*/
private PagerAdapter pagerAdapter = new PagerAdapter() {
@Override
public Object instantiateItem(ViewGroup container, int position) {
container.addView(imageViews.get(position));
return imageViews.get(position);
}

@Override
public int getCount() {
return imageViews.size();
}

@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(imageViews.get(position));
}
};

/**
* OnPageChangeListener 监听器
*/
private ViewPager.OnPageChangeListener onPageChangeListener = new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

}

@Override
public void onPageSelected(int position) {
if(position == imageViews.size()-1){
isshow = true;
}else
{
isshow = false;
}
}

@Override
public void onPageScrollStateChanged(int state) {

if(isshow && state==ViewPager.SCROLL_STATE_IDLE)
{
guideButton.setVisibility(View.VISIBLE);
}else
{
guideButton.setVisibility(View.INVISIBLE);
}
}
};
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>

<android.support.v4.view.ViewPager
android:id="@+id/guide_viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent">

</android.support.v4.view.ViewPager>

<Button
android:id="@+id/guide_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/guide_but_bg"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:layout_marginBottom="60dp"
android:visibility="invisible"
/>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@mipmap/guide_start_click_pressed"/>
<item android:drawable="@mipmap/guide_start_click_pormal"/>
</selector>

package com.weidingqiang.custommooc.activitys;

import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;

import com.weidingqiang.custommooc.R;
import com.weidingqiang.custommooc.utils.DisplayUtil;
import com.weidingqiang.custommooc.views.widgets.GuidePointGroup;

import java.util.ArrayList;
import java.util.List;

/**
* 引导页
*/
public class GuideActivity extends AppCompatActivity implements View.OnClickListener{

private static final String TAG = GuideActivity.class.getSimpleName();

private ViewPager viewPager;

private Button guideButton;

private int[] imgIds;
private List<ImageView> imageViews ;

//是否显示按钮
private boolean isshow;

private RelativeLayout baseLayout;

private GuidePointGroup guidePointGroup;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setContentView(R.layout.activity_guide);

//设置全屏
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);

initData();
initUI();
}

/**
* 绑定UI
*/
private void initUI(){
baseLayout = (RelativeLayout) this.findViewById(R.id.baseLayout);
viewPager = (ViewPager) this.findViewById(R.id.guide_viewPager);
guideButton = (Button) this.findViewById(R.id.guide_button);
guideButton.setOnClickListener(this);

initImageData();
initGuidePointGroup();

viewPager.setAdapter(pagerAdapter);

viewPager.addOnPageChangeListener(onPageChangeListener);
}

/**
* 初始化数据
*/
private void initData(){
imgIds = new int[] { R.mipmap.guide_image1,R.mipmap.guide_image2,
R.mipmap.guide_image3,R.mipmap.guide_image4,R.mipmap.guide_image5};
imageViews = new ArrayList<ImageView>();
}

private void initImageData()
{
for (int imgId : imgIds)
{
ImageView imageView = new ImageView(getApplicationContext());
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setImageResource(imgId);
imageViews.add(imageView);
}
}

private void initGuidePointGroup(){
guidePointGroup = new GuidePointGroup(this,imgIds.length);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
layoutParams.bottomMargin = DisplayUtil.dip2px(getBaseContext(),90);
baseLayout.addView(guidePointGroup, layoutParams);

}

@Override
public void onClick(View v) {

finish();
}

/**
* PagerAdapter 监听器
*/
private PagerAdapter pagerAdapter = new PagerAdapter() {
@Override
public Object instantiateItem(ViewGroup container, int position) {
container.addView(imageViews.get(position));
return imageViews.get(position);
}

@Override
public int getCount() {
return imageViews.size();
}

@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(imageViews.get(position));
}
};

/**
* OnPageChangeListener 监听器
*/
private ViewPager.OnPageChangeListener onPageChangeListener = new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

}

@Override
public void onPageSelected(int position) {
if(position == imageViews.size()-1){
isshow = true;
}else
{
isshow = false;
}
guidePointGroup.changeSelectView(position);
}

@Override
public void onPageScrollStateChanged(int state) {

if(isshow && state==ViewPager.SCROLL_STATE_IDLE)
{
guideButton.setVisibility(View.VISIBLE);
}else
{
guideButton.setVisibility(View.INVISIBLE);
}
}
};
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/baseLayout"
>

<android.support.v4.view.ViewPager
android:id="@+id/guide_viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent">

</android.support.v4.view.ViewPager>

<Button
android:id="@+id/guide_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/guide_but_bg"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:layout_marginBottom="30dp"
android:visibility="invisible"
/>
</RelativeLayout>

package com.weidingqiang.custommooc.views.widgets;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;

import com.weidingqiang.custommooc.R;
import com.weidingqiang.custommooc.utils.DisplayUtil;

import java.util.ArrayList;
import java.util.List;

/**
* Created by weidingqiang on 15/11/25.
*/
public class GuidePointGroup extends LinearLayout {

private int pointnum;

private List<ImageView> viewList;

public GuidePointGroup(Context context,int num) {

super(context);

pointnum = num;

initView();
}

private void initView(){
viewList = new ArrayList<ImageView>();

for (int i = 0;i<pointnum;i++){
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
if(i!=0){
layoutParams.leftMargin = DisplayUtil.dip2px(getContext(),6);
}
ImageView view = new ImageView(getContext());
view.setBackgroundResource(R.drawable.guide_view_bg);
addView(view, layoutParams);
viewList.add(view);
}

changeSelectView(0);
}

public void changeSelectView(int current){
for (int i = 0;i<pointnum;i++) {
ImageView view = viewList.get(i);
view.setSelected(i == current);
}
}
}

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true" android:drawable="@mipmap/guide_view_check_icon"/>
<item android:drawable="@mipmap/guide_view_uncheck_icon"/>
</selector>