TextSwitcher切换动画

package com.leigo.textswitcherdemo;import android.os.Bundle;import android.support.v4.view.ViewPager;import android.support.v7.app.ActionBarActivity;import android.view.LayoutInflater;import android.view.View;import android.widget.TextSwitcher;import android.widget.ViewSwitcher;import com.viewpagerindicator.CirclePageIndicator;import com.viewpagerindicator.PageIndicator;public class MainActivity extends ActionBarActivity implements ViewSwitcher.ViewFactory {    private static final int[] TABS = {R.string.tip_guide_first, R.string.tip_guide_second, R.string.tip_guide_third            , R.string.tip_guide_fourth, R.string.tip_guide_fifth, R.string.tip_guide_six};    TestFragmentAdapter mAdapter;    ViewPager mPager;    PageIndicator mIndicator;    TextSwitcher mTip;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mAdapter = new TestFragmentAdapter(getFragmentManager());        mPager = (ViewPager) findViewById(R.id.pager);        mPager.setAdapter(mAdapter);        mIndicator = (CirclePageIndicator) findViewById(R.id.indicator);        mIndicator.setViewPager(mPager);        mTip = (TextSwitcher) findViewById(R.id.tip);        mTip.setFactory(this);        mTip.setCurrentText(getString(R.string.tip_guide_first));        mIndicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {            @Override            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {            }            @Override            public void onPageSelected(int position) {                mTip.setText(getString(TABS[position]));            }            @Override            public void onPageScrollStateChanged(int state) {            }        });    }    @Override    public View makeView() {        return LayoutInflater.from(this).inflate(R.layout.guide_tip, null);    }}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#ff00a7ff">    <android.support.v4.view.ViewPager  android:id="@+id/pager" android:paddingBottom="100dp" android:layout_width="match_parent" android:layout_height="match_parent" />    <com.viewpagerindicator.CirclePageIndicator  android:id="@+id/indicator" android:layout_alignParentBottom="true" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="16dp" app:strokeWidth="0.0dip" app:fillColor="#ffffffff" app:pageColor="#88ffffff" app:strokeColor="#00000000" />    <TextSwitcher  android:id="@+id/tip" android:layout_width="wrap_content" android:layout_height="wrap_content" android:inAnimation="@anim/slide_in_down" android:outAnimation="@anim/slide_out_up" android:layout_above="@id/indicator" android:layout_centerHorizontal="true" /></RelativeLayout>

slide_in_down.xml

<?xml version="1.0" encoding="utf-8"?><set  android:shareInterpolator="false" android:zAdjustment="top" xmlns:android="http://schemas.android.com/apk/res/android">    <translate  android:duration="@integer/config_activity_animation_time" android:fromYDelta="50.0%p" android:toYDelta="0.0" />    <alpha  android:duration="@integer/config_activity_animation_time" android:fromAlpha="0.0" android:toAlpha="1.0" /></set>

slide_out_up.xml

<?xml version="1.0" encoding="utf-8"?><set  android:shareInterpolator="false" android:zAdjustment="top" xmlns:android="http://schemas.android.com/apk/res/android">    <translate  android:duration="@integer/config_activity_animation_time" android:fromYDelta="0.0" android:toYDelta="-50.0%p" />    <alpha  android:duration="@integer/config_activity_animation_time" android:fromAlpha="1.0" android:toAlpha="0.0" /></set>

package com.leigo.textswitcherdemo;import android.app.Fragment;import android.app.FragmentManager;import android.support.v13.app.FragmentPagerAdapter;class TestFragmentAdapter extends FragmentPagerAdapter {    protected static final String[] CONTENT = new String[]{"This", "Is", "A", "Test", "Demo", "Text"};    private int mCount = CONTENT.length;    public TestFragmentAdapter(FragmentManager fm) {        super(fm);    }    @Override    public Fragment getItem(int position) {        return TestFragment.newInstance(CONTENT[position % CONTENT.length]);    }    @Override    public int getCount() {        return mCount;    }    @Override    public CharSequence getPageTitle(int position) {        return TestFragmentAdapter.CONTENT[position % CONTENT.length];    }}

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