android view的setVisibility的方法

Question

这个到底是怎么用的呢？
mButton.setVisibility(View.INVISIBLE);
            mTextView.setVisibility(View.INVISIBLE);
            mTimerView.setVisibility(View.VISIBLE);
            mJetBoyThread.setGameState(JetBoyThread.STATE_RUNNING);
这些到底是什么意思？

Answer 1

public void onClick(View v) { 
         
        if (mJetBoyThread.getGameState() == JetBoyThread.STATE_START) { 
            mButton.setText("PLAY!"); 
            mTextView.setVisibility(View.VISIBLE); 
            mTextView.setText(R.string.helpText); 
            mJetBoyThread.setGameState(JetBoyThread.STATE_PLAY); 
        } 
        // we have entered game play, now we about to start running 
        else if (mJetBoyThread.getGameState() == JetBoyThread.STATE_PLAY) { 
            mButton.setVisibility(View.INVISIBLE); 
            mTextView.setVisibility(View.INVISIBLE); 
            mTimerView.setVisibility(View.VISIBLE); 
            mJetBoyThread.setGameState(JetBoyThread.STATE_RUNNING); 
        } 
        // this is a retry button 
        else if (mButtonRetry.equals(v)) { 
            mTextView.setText(R.string.helpText); 
            mButton.setText("PLAY!"); 
            mButtonRetry.setVisibility(View.INVISIBLE); 
            // mButtonRestart.setVisibility(View.INVISIBLE); 
            mTextView.setVisibility(View.VISIBLE); 
            mButton.setText("PLAY!"); 
            mButton.setVisibility(View.VISIBLE); 
            mJetBoyThread.setGameState(JetBoyThread.STATE_PLAY); 
        } else { 
            Log.d("JB VIEW", "unknown click " + v.getId()); 
            Log.d("JB VIEW", "state is  " + mJetBoyThread.mState); 
        } 
    }
有人说这个代码十分好懂  可是我就是没看懂啊  代码来源于jetboy游戏

Answer 2

setVisibility 设置控件是否可见啊

Answer 3

mButton.setVisibility(View.INVISIBLE); --- mButton不可见，任然占用位置
mTextView.setVisibility(View.INVISIBLE);---mTextView不可见，任然占用位置
mTimerView.setVisibility(View.VISIBLE);---mTimerView可见
 还有个GONE属性 是不可见，不占用位置