java setMovementMethod(滚动)会干扰textView中的缩放检测器(缩放)
非常感谢你的阅读。我有一个文本视图,你可以点击缩放,当我在代码中添加"textview.setMovementMethod(new ScrollingMovementMethod());"
时,我也可以滚动缩放的文本视图,这正是我所需要的。问题是,一旦文本被缩放,只有滚动可以工作,但收缩缩放不再工作(除非我把一个手指放在文本视图外面,另一个手指放在里面)。任何帮助都将不胜感激。我从这里得到了代码:Pinch Zooming TextView
import 安卓.os.Bundle;
import 安卓.app.Activity;
import 安卓.util.Log;
import 安卓.util.TypedValue;
import 安卓.view.Menu;
import 安卓.view.MotionEvent;
import 安卓.view.ScaleGestureDetector;
import 安卓.view.ScaleGestureDetector.SimpleOnScaleGestureListener;
import 安卓.widget.TextView;
public class MainActivity extends Activity {
TextView scaleGesture;
ScaleGestureDetector scaleGestureDetector;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
scaleGesture = (TextView)findViewById(R.id.article);
scaleGesture.setText("this is some text");
scaleGestureDetector = new ScaleGestureDetector(this, new simpleOnScaleGestureListener());
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
scaleGestureDetector.onTouchEvent(event);
return true;
}
public class simpleOnScaleGestureListener extends
SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
// TODO Auto-generated method stub
float size = scaleGesture.getTextSize();
Log.d("TextSizeStart", String.valueOf(size));
float factor = detector.getScaleFactor();
Log.d("Factor", String.valueOf(factor));
float product = size*factor;
Log.d("TextSize", String.valueOf(product));
scaleGesture.setTextSize(TypedValue.COMPLEX_UNIT_PX, product);
size = scaleGesture.getTextSize();
Log.d("TextSizeEnd", String.valueOf(size));
return true;
}
}
}`
# 1 楼答案
我只是解决了这个问题(使用相同的示例),在代码中只添加一个“如果”: