自动调整TextView字体大小以适应文字长度&拖动一个角增大textView面积
效果是 当字数少的时候 字体最大，随着字数的增多字体逐渐减小。

public class EditTextClass extends Activity implements OnTouchListener {    private EditText txt;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        txt = (EditText) findViewById(YourEditTextId);        txt.setOnTouchListener(this);    }    @Override    public boolean onTouch(View v, MotionEvent event) {       if(event.getX() >= txt.getWidth() - 5 && event.getX() <= txt.getWidth()            event.getY() >= txt.getHeight() - 5 && event.getY() <= txt.getHeight()) {           txt.setWidth(event.getX());            txt.setHeight(event.getY());       }       return true;    }}

ImageView伸缩动画效果
http://edison-cool911.iteye.com/blog/870339 1 楼 安轩之 2011-09-20 楼主，你写的是否有误？？？