Initial commit 这只是一个带小圆点的轮播图

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 24
+    buildToolsVersion "25.0.2"
+    defaultConfig {
+        applicationId "com.qf.viewpagertest01"
+        minSdkVersion 14
+        targetSdkVersion 24
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:24.2.1'
+    testCompile 'junit:junit:4.12'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Users\Administrator\AppData\Local\Android\Sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

app/src/androidTest/java/com/qf/viewpagertest01/ExampleInstrumentedTest.java

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+package com.qf.viewpagertest01;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.qf.viewpagertest01", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.qf.viewpagertest01">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/qf/viewpagertest01/MainActivity.java

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+package com.qf.viewpagertest01;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.SystemClock;
+import android.support.v4.view.ViewPager;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.AbsListView;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MainActivity extends AppCompatActivity {
+
+    private Handler handler = new Handler(){
+        @Override
+        public void handleMessage(Message msg) {
+            vp.setCurrentItem(vp.getCurrentItem()+1);
+            handler.sendEmptyMessageDelayed(0,5000);
+        }
+    };
+
+    private ViewPager vp;
+    private int[] imgs = new int[]{R.drawable.p1,R.drawable.p2,R.drawable.p3,R.drawable.p4,R.drawable.pp1,R.drawable.tangyixin};
+    private List<ImageView> imageViews;
+    private LinearLayout dotLayout;
+    private int prePosition = 0;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        dotLayout = ((LinearLayout) findViewById(R.id.dot_layou));
+        vp = ((ViewPager) findViewById(R.id.viewpager));
+        initData();
+        MyAdapter adapter = new MyAdapter(imageViews);
+        vp.setAdapter(adapter);
+        vp.setCurrentItem(6*10000);
+        dotLayout.getChildAt(0).setEnabled(false);
+//        handler.sendEmptyMessage(0);
+        vp.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
+            @Override
+            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+
+            }
+
+            @Override
+            public void onPageSelected(int position) {
+                dotLayout.getChildAt(prePosition).setEnabled(true);
+                dotLayout.getChildAt(position%6).setEnabled(false);
+                prePosition = position%6;
+            }
+
+            @Override
+            public void onPageScrollStateChanged(int state) {
+
+            }
+        });
+
+    }
+
+    private void initData() {
+        imageViews = new ArrayList<>();
+        for (int i = 0; i < imgs.length; i++) {
+            ImageView imageView = new ImageView(this);
+            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
+            imageView.setImageResource(imgs[i]);
+            imageViews.add(imageView);
+            View dotView = new View(this);
+            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(10,10);
+            params.leftMargin = 10;
+            dotView.setLayoutParams(params);
+            dotView.setBackgroundResource(R.drawable.dot_background);
+            dotLayout.addView(dotView);
+        }
+
+    }
+
+
+}

app/src/main/java/com/qf/viewpagertest01/MyAdapter.java

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+package com.qf.viewpagertest01;
+
+import android.support.v4.view.PagerAdapter;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import java.util.List;
+
+/**
+ * Created by Administrator on 2017/3/22 0022.
+ */
+
+public class MyAdapter extends PagerAdapter {
+    private List<ImageView> list;
+
+    public MyAdapter(List<ImageView> list) {
+        this.list = list;
+    }
+
+    @Override
+    public int getCount() {
+        return Integer.MAX_VALUE;
+    }
+
+    @Override
+    public boolean isViewFromObject(View view, Object object) {
+        return view==object;
+    }
+
+    @Override
+    public Object instantiateItem(ViewGroup container, int position) {
+
+
+        ImageView imageView = list.get(position%6);
+        container.addView(imageView);
+        return imageView;
+    }
+
+    @Override
+    public void destroyItem(ViewGroup container, int position, Object object) {
+        container.removeView(list.get(position%6));
+
+    }
+}

app/src/main/res/drawable/dot_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_enabled="true" android:drawable="@drawable/white_dot" />
+    <item android:state_enabled="false" android:drawable="@drawable/red_dot" />
+</selector>

app/src/main/res/drawable/red_dot.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="5dp" />
+    <solid android:color="#ff3232" />
+</shape>