安卓学习UI组件TextSwitcher和ImageSwitcher文字和图片切换

TextSwitcher

滑动屏幕&＃xff0c;左滑或者右滑

代码&＃xff1a;


xmlns:tools&＃61;"http://schemas.android.com/tools"
android:layout_width&＃61;"match_parent"
android:layout_height&＃61;"match_parent"
android:paddingBottom&＃61;"&＃64;dimen/activity_vertical_margin"
android:paddingLeft&＃61;"&＃64;dimen/activity_horizontal_margin"
android:paddingRight&＃61;"&＃64;dimen/activity_horizontal_margin"
android:paddingTop&＃61;"&＃64;dimen/activity_vertical_margin"
tools:context&＃61;"com.example.administrator.myapplication.MainActivity2">

android:layout_width&＃61;"match_parent"
android:layout_height&＃61;"match_parent"
android:id&＃61;"&＃64;&＃43;id/textSwitcher"
android:layout_alignParentTop&＃61;"true"
android:layout_alignParentLeft&＃61;"true"
android:layout_alignParentStart&＃61;"true" />



package com.example.administrator.myapplication;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher;

public class MainActivity2 extends ActionBarActivity implements ViewSwitcher.ViewFactory,View.OnTouchListener {

private TextSwitcher textSwitcher;
private String[] texts&＃61;{"岁月是一把无情的杀猪刀","岁月静好&＃xff0c;现世安稳","我有钱我任性"};
private int index; //默认为0
&＃64;Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
textSwitcher&＃61; (TextSwitcher) findViewById(R.id.textSwitcher);
textSwitcher.setOnTouchListener(this);
textSwitcher.setFactory(this);
}

&＃64;Override
public View makeView() {

TextView tv&＃61;new TextView(this);
tv.setText(texts[index]);
return tv;
}

float startX&＃61;0.0f;
float endX&＃61;0.0f;
&＃64;Override
public boolean onTouch(View v, MotionEvent event) {
int action&＃61;event.getAction();//获取当前的事件动作
System.out.println("action&＃61;"&＃43;action);//sout

if(action&＃61;&＃61;MotionEvent.ACTION_DOWN)
{
startX&＃61;event.getX();
return true;
}
if(action&＃61;&＃61;MotionEvent.ACTION_UP)
{
endX&＃61;event.getX();
if(startX-endX>20)//下一张
{
index&＃61;(index&＃43;1 textSwitcher.setInAnimation(this,android.R.anim.fade_in);
textSwitcher.setOutAnimation(this, android.R.anim.fade_out);

// imageSwitcher.setImageResource(images[index]);
}
else if(endX-startX>20){ //上一张
index&＃61;(index-1>&＃61;0?--index:texts.length-1);
// imageSwitcher.setImageResource(images[index]);
textSwitcher.setInAnimation(this,android.R.anim.fade_in);
textSwitcher.setOutAnimation(this,android.R.anim.fade_out);

}
System.out.println("index"&＃43;index);
textSwitcher.setText(texts[index]);

}

return true;
}
}


ImageSwitcher

滑动后

代码&＃xff1a;


xmlns:tools&＃61;"http://schemas.android.com/tools"
android:layout_width&＃61;"match_parent"
android:layout_height&＃61;"match_parent"
android:paddingBottom&＃61;"&＃64;dimen/activity_vertical_margin"
android:paddingLeft&＃61;"&＃64;dimen/activity_horizontal_margin"
android:paddingRight&＃61;"&＃64;dimen/activity_horizontal_margin"
android:paddingTop&＃61;"&＃64;dimen/activity_vertical_margin"
tools:context&＃61;"com.example.administrator.myapplication.MainActivity">

android:layout_width&＃61;"match_parent"
android:layout_height&＃61;"wrap_content"
android:id&＃61;"&＃64;&＃43;id/imageSwitcher"
android:layout_alignParentTop&＃61;"true"
android:layout_alignParentLeft&＃61;"true"
android:layout_alignParentStart&＃61;"true" />