AndroidのUI - TextSwitcher - liguofeng29’s blog

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextSwitcher
        android:id="@+id/textSwitcher"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:inAnimation="@android:anim/slide_in_left"
        android:outAnimation="@android:anim/slide_out_right"
        android:onClick="next"
        />
</LinearLayout>

MainActivity.java

package com.example.liguofeng.textswitcher;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher;

public class MainActivity extends AppCompatActivity {

    String[] texts = {"JAVA", "C", "c#" , "VB"};

    TextSwitcher switcher;
    int index = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        switcher = (TextSwitcher) findViewById(R.id.textSwitcher);
        switcher.setFactory(new ViewSwitcher.ViewFactory() {
            @Override
            public View makeView() {
                // TextView生成
                TextView view = new TextView(MainActivity.this);
                view.setTextSize(50);
                view.setTextColor(Color.MAGENTA);
                view.setBackgroundColor(Color.YELLOW);
                return view;
            }
        });

        next(null); // 初期表示
    }

    public void next(View view){
        switcher.setText(texts[index++ % texts.length]);
    }
}