计算textView高度

TextView tv = (TextView) findViewById(R.id.TextView02); 
int height_in_pixels = tv.getLineCount() * tv.getLineHeight(); //approx height text 
tv.setHeight(height_in_pixels);

有时候你需要加上TextView tv = (TextView)findViewById(R.id.TextView02); 
tv.setMovementMethod(ScrollingMovementMethod.getInstance());