android Textview动态设置大小

import android.app.Activity;
//import com.travelzen.tdx.BaseActivity;
//import com.travelzen.tdx.util.PreferencesUtils;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.widget.TextView;

public class GuideActivity2 extends Activity {
	private TextView textView;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		textView = new TextView(this);
		textView.setText("fuck android ");
		textView.setTextColor(0xff00ff00);
		textView.post(new Runnable() {
			
			@Override
			public void run() {
				System.out.println("xirtam thread id " + Thread.currentThread().getId());
			}
		});
		setContentView(textView);
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
		if (event.getAction() == MotionEvent.ACTION_DOWN) {
			float size = textView.getTextSize();
			System.out.println("xirtam " + size);
			textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, size - 1);
		}
		return super.onTouchEvent(event);
	}

}

直接上代码，不可以直接使用

textView.setTextSize(size-1);　//

@param size The scaled pixel size.

这个size是缩放过的像素。