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完成自定义Navigator的演示
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‎app/src/main/java/net/lucode/hackware/magicindicatordemo/example/CustomNavigatorExampleActivity.java

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package net.lucode.hackware.magicindicatordemo.example;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.support.v4.view.ViewPager;
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import android.support.v7.app.AppCompatActivity;
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import net.lucode.hackware.magicindicator.MagicIndicator;
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import net.lucode.hackware.magicindicator.ViewPagerHelper;
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import net.lucode.hackware.magicindicator.buildins.circlenavigator.CircleNavigator;
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import net.lucode.hackware.magicindicatordemo.R;
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import net.lucode.hackware.magicindicatordemo.ext.navigator.ScaleCircleNavigator;
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import java.util.Arrays;
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import java.util.List;
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public class CustomNavigatorExampleActivity extends AppCompatActivity {
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private static final String[] CHANNELS = new String[]{"CUPCAKE", "DONUT", "ECLAIR", "GINGERBREAD", "HONEYCOMB", "ICE_CREAM_SANDWICH", "JELLY_BEAN", "KITKAT", "LOLLIPOP", "M", "NOUGAT"};
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private List<String> mDataList = Arrays.asList(CHANNELS);
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private ExamplePagerAdapter mExamplePagerAdapter = new ExamplePagerAdapter(mDataList);
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private ViewPager mViewPager;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_custom_navigator_example_layout);
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mViewPager = (ViewPager) findViewById(R.id.view_pager);
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mViewPager.setAdapter(mExamplePagerAdapter);
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initMagicIndicator1();
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initMagicIndicator2();
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initMagicIndicator3();
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}
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private void initMagicIndicator1() {
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MagicIndicator magicIndicator = (MagicIndicator) findViewById(R.id.magic_indicator1);
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CircleNavigator circleNavigator = new CircleNavigator(this);
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circleNavigator.setCircleCount(CHANNELS.length);
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circleNavigator.setCircleColor(Color.RED);
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circleNavigator.setCircleClickListener(new CircleNavigator.OnCircleClickListener() {
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@Override
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public void onClick(int index) {
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mViewPager.setCurrentItem(index);
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}
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});
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magicIndicator.setNavigator(circleNavigator);
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ViewPagerHelper.bind(magicIndicator, mViewPager);
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}
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private void initMagicIndicator2() {
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MagicIndicator magicIndicator = (MagicIndicator) findViewById(R.id.magic_indicator2);
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CircleNavigator circleNavigator = new CircleNavigator(this);
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circleNavigator.setFollowTouch(false);
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circleNavigator.setCircleCount(CHANNELS.length);
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circleNavigator.setCircleColor(Color.RED);
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circleNavigator.setCircleClickListener(new CircleNavigator.OnCircleClickListener() {
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@Override
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public void onClick(int index) {
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mViewPager.setCurrentItem(index);
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}
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});
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magicIndicator.setNavigator(circleNavigator);
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ViewPagerHelper.bind(magicIndicator, mViewPager);
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}
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private void initMagicIndicator3() {
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MagicIndicator magicIndicator = (MagicIndicator) findViewById(R.id.magic_indicator3);
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ScaleCircleNavigator scaleCircleNavigator = new ScaleCircleNavigator(this);
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scaleCircleNavigator.setCircleCount(CHANNELS.length);
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scaleCircleNavigator.setNormalCircleColor(Color.LTGRAY);
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scaleCircleNavigator.setSelectedCircleColor(Color.DKGRAY);
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scaleCircleNavigator.setCircleClickListener(new ScaleCircleNavigator.OnCircleClickListener() {
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@Override
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public void onClick(int index) {
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mViewPager.setCurrentItem(index);
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}
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});
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magicIndicator.setNavigator(scaleCircleNavigator);
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ViewPagerHelper.bind(magicIndicator, mViewPager);
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}
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}

‎app/src/main/res/layout/activity_custom_navigator_example_layout.xml

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<?xml version="1.0" encoding="utf-8"?>
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:id="@+id/activity_custom_navigator_example"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:paddingBottom="@dimen/activity_vertical_margin"
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android:paddingLeft="@dimen/activity_horizontal_margin"
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android:paddingRight="@dimen/activity_horizontal_margin"
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android:paddingTop="@dimen/activity_vertical_margin"
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tools:context="net.lucode.hackware.magicindicatordemo.example.CustomNavigatorExampleActivity">
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<TextView
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<android.support.v4.view.ViewPager
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android:id="@+id/view_pager"
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android:layout_width="match_parent"
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android:layout_height="match_parent" />
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<net.lucode.hackware.magicindicator.MagicIndicator
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android:id="@+id/magic_indicator1"
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android:layout_width="wrap_content"
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android:layout_height="@dimen/common_navigator_height"
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android:layout_alignParentBottom="true"
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android:layout_centerHorizontal="true" />
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<net.lucode.hackware.magicindicator.MagicIndicator
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android:id="@+id/magic_indicator2"
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android:layout_width="wrap_content"
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android:layout_height="@dimen/common_navigator_height"
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android:layout_above="@+id/magic_indicator1"
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android:layout_centerHorizontal="true" />
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<net.lucode.hackware.magicindicator.MagicIndicator
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android:id="@+id/magic_indicator3"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_centerInParent="true"
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android:text="coming soon!" />
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android:layout_height="@dimen/common_navigator_height"
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android:layout_above="@id/magic_indicator2"
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android:layout_centerHorizontal="true" />
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</RelativeLayout>

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