前言：
- 啟動app先進入閃屏界面，接下來跳轉(zhuǎn)到viewpager引導(dǎo)界面稍算。呼伸。。睹耐。
整體結(jié)構(gòu)就是 這樣：
整體結(jié)構(gòu).jpg
- 布局文件
（splash.xml）直接一個背景
（view_1 view_2 view_3.xml）直接通過ImageView引用一張圖片
（welcome.xml）TextView一句話
（gudide.xml）
<?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/viewpager"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
</android.support.v4.view.ViewPager>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
>
<ImageView
android:id="@+id/iv_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point_selected" />
<ImageView
android:id="@+id/iv_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point" />
<ImageView
android:id="@+id/iv_3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_point" />
</LinearLayout>
</RelativeLayout>
- Splash.java(閃屏界面)
public class SplashActivity extends Activity {
private Thread newThread;
private long threadtime = 3000;
private boolean ispause = false;
private boolean isSpinshActivity = true;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//設(shè)置圖片格式
setondraweble();
setContentView(R.layout.splash);
//設(shè)置睡眠時間
setSpinshTime();
}
private void setSpinshTime() {
newThread = new Thread(){
@Override
public void run() {
super.run();
int ms = 0;
try {
while(isSpinshActivity&&ms<threadtime){
sleep(100);
if(!ispause){
ms+=100;
}
}
//設(shè)置跳轉(zhuǎn)
Intent i = new Intent(SplashActivity.this,GuideActivity.class);
startActivity(i);
finish();
}catch (InterruptedException e) {
e.printStackTrace();
}
}
};
newThread.start();
}
//設(shè)置全屏
private void setondraweble() {
// 設(shè)置無標題
requestWindowFeature(Window.FEATURE_NO_TITLE);
// 設(shè)置全屏參數(shù)
int flag = WindowManager.LayoutParams.FLAG_FULLSCREEN;
// 獲得window
Window myWindow = this.getWindow();
// 輸出
myWindow.setFlags(flag, flag);
}
// 暫停界面
@Override
protected void onPause() {
super.onPause();
ispause = true;
}
// 又回到這個界面
@Override
protected void onResume() {
super.onResume();
ispause = false;
}
}
- GuideActivity.java(viewpager引導(dǎo)界面)
public class GuideActivity extends Activity implements OnClickListener,OnPageChangeListener{
private ViewPager viewpager;
private List<View> views;
private MyPageAdapter vpadapter;
private Button join;
private ImageView[] dots;
private int viewid[] = {R.id.iv_1,R.id.iv_2,R.id.iv_3};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.guide);
//我們先要得到view對象
iviview();
//接下來圖片初始化
inidots();
}
//初始化更為方便
private void inidots() {
dots = new ImageView[views.size()];
for(int i=0;i<views.size();i++){
dots[i] = (ImageView) findViewById(viewid[i]);
}
}
@SuppressLint("InflateParams") @SuppressWarnings("static-access")
private void iviview() {
//獲得view對象
LayoutInflater lf = getLayoutInflater().from(GuideActivity.this);
View view1 = lf.inflate(R.layout.view_1, null);
View view2 = lf.inflate(R.layout.view_2, null);
View view3 = lf.inflate(R.layout.view_3, null);
views = new ArrayList<View>();// 將要分頁顯示的View裝入數(shù)組中
views .add(view1);
views .add(view2);
views .add(view3);
//調(diào)用adapter
vpadapter = new MyPageAdapter(views,this);
//找到viewpager控件
viewpager = (ViewPager) findViewById(R.id.viewpager);
viewpager.setAdapter(vpadapter);
//判斷Button的位置
join = (Button)views.get(2).findViewById(R.id.join);
//設(shè)置監(jiān)聽事件
join.setOnClickListener(this);
setOnPageChangeListener(this);
}
//按鈕點擊事件
@Override
public void onClick(View arg0) {
Intent i = new Intent(GuideActivity.this,ViewPagerDemoActivity.class);
startActivity(i);
finish();
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
//選擇了這個pager(和小圓點)
@Override
public void onPageSelected(int position) {
for(int i =0;i<views.size();i++){
//滑動到當前頁面 辐赞，小圓點變化
if(position==i){
//引用資源
dots[i].setImageResource(R.id.iv_1);
}
else{
dots[i].setImageResource(R.id.iv_2);
}
}
}
}
- MyPageAdapter.java(自定義Adapter繼承PagerAdapter)
實現(xiàn)4個方法
public class MyPageAdapter extends PagerAdapter{
private List<View> views;
@SuppressWarnings("unused")
private Context context;
public MyPageAdapter(List<View> views, Context context) {
super();
this.views = views;
this.context = context;
}
// viewpager中的要顯示的View的總數(shù)量
@Override
public int getCount()
{
return views.size();
}
// 滑動切換的時候銷毀當前的View
@Override
public void destroyItem(ViewGroup container, int position,
Object object)
{
((ViewPager) container).removeView(views.get(position));
}
// 每次滑動的時候生成的View
@Override
public Object instantiateItem(ViewGroup container, int position)
{
((ViewPager) container).addView(views.get(position));
return views.get(position);
}
// 官方建議這樣寫
@Override
public boolean isViewFromObject(View arg0, Object arg1)
{
return arg0 == arg1;
}
}
最后由引導(dǎo)界面進入主Activity界面
注:Activity不要忘記注冊
<activity
android:name=".SplashActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".ViewPagerDemoActivity"></activity>
<activity android:name=".GuideActivity"></activity>
結(jié)果:
viewpager.gif
