Android TextSwitcher数字序列动画

Question

我想做以下 - 动画数字序列更改,我正在使用TextSwitcher.我有用户得分,它会不时变化.有没有办法对此更改进行动画处理,以便将此数字从其当前值缓慢增加到其结果值？像http://josheinstein.com/blog/index.php/2010/02/silverlight-animated-turbotax-number-display/,但对于Android.

Answer 1

我一直在找同样的,有朋友帮我,这是一份工作样本.希望对你有效.

-Raj

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.widget.TextView;

public class TimerUpdateAnimatorActivity extends Activity {

    private static final int toValue = 20;
    private static final int fromValue = 0;
    private static final int FRAME_TIME_MS = 100;
    private static final String KEY = "i";
    private TextView animatedText;
    boolean isRunning = false;

    // background updating
    Handler handler = new Handler() {
        public void handleMessage(Message msg) {
            try {
                int i= msg.getData().getInt(KEY);
                animatedText.setText(""+i);

            } catch (Exception err) {
            }
        }

    };

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        animatedText = (TextView) findViewById(R.id.animatedText);
    }

    public void onStart() {
        super.onStart();
        Thread background = new Thread(new Runnable() {
            public void run() {
                try {
                    for (int i = fromValue; i <= toValue && isRunning; i++) {
                        Thread.sleep(FRAME_TIME_MS);
                        Bundle data= new Bundle();
                        data.putInt(KEY, i);
                        Message message = handler.obtainMessage();
                        message.setData(data);
                        handler.sendMessage(message);
                    }
                }
                catch (Throwable t) {
                }
            }
        });
        isRunning = true;
        background.start();
    }

    public void onStop() {
        super.onStop();
        isRunning = false;
    }

}