通过TextSwitcher实现广告栏内容动画切换

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textswitcher
1，布局中使用

  <TextSwitcher        android:id="@+id/switcher"        android:layout_width="match_parent"        //控制进入动画  根据需求自顶更改        android:inAnimation="@anim/enter_animation"        //控制退出的动画        android:outAnimation="@anim/outer_animation"        android:background="@color/cardview_dark_background"        android:layout_height="wrap_content">    </TextSwitcher>

//动画 enter_animation

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:duration="2000"        android:fromYDelta="100%p"        android:interpolator="@android:anim/accelerate_interpolator"        android:toYDelta="0%p" /></set>

//退出动画 outer_animation

public class MainActivity extends FragmentActivity {    int index;    String  [] str={"fahkfahkfha","窗前明月光"};    private Handler mHandler =new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            index++;            mTextSwitcher.setText(str[index%2]);            mHandler.sendEmptyMessageDelayed(0,2000);        }    };    private TextSwitcher mTextSwitcher;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mTextSwitcher = (TextSwitcher) findViewById(R.id.switcher);        mTextSwitcher.setFactory(new ViewSwitcher.ViewFactory() {            @Override            public View makeView() {                TextView  textView=new TextView(MainActivity.this);                FrameLayout.LayoutParams layoutParams=   new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);                textView.setPadding(0,40,0,40);                textView.setGravity(Gravity.CENTER_HORIZONTAL);                textView.setLayoutParams(layoutParams);                return textView;            }        });        mTextSwitcher.setText("hahahha");        mHandler.sendEmptyMessageDelayed(0,2000);    }

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