Android Studio 超出手机页面滑动滚动条设置 android studio页面下滑

<ListView
android:id=“@+id/id_lv”
android:layout_width=“match_parent”
android:layout_height=“match_parent” />
3.MainActivity.java，上滑，标题栏隐藏，下滑显示，这是动画的，比较容易，我暂时不说多
public class MainActivity extends Activity {
private ListView mListView;
private RelativeLayout mTitle;
private int mTouchSlop;
private SimpleAdapter mAdapter;
private float mFirstY;
private float mCurrentY;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
mTouchSlop = ViewConfiguration.get(this).getScaledTouchSlop();
initViews();
showHideTitleBar(true);
}
private void initViews() {
mListView = (ListView) findViewById(R.id.id_lv);
mTitle = (RelativeLayout) findViewById(R.id.id_title);
mAdapter = new SimpleAdapter(this, getData(),
R.layout.lv_item,
new String[]{“info”},
new int[]{R.id.num_info});
mListView.setAdapter(mAdapter);
mListView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mFirstY = event.getY();
break;
case MotionEvent.ACTION_MOVE:
mCurrentY = event.getY();
if (mCurrentY - mFirstY > mTouchSlop) {
System.out.println(“mtouchislop:” + mTouchSlop);
// 下滑 显示titleBar
showHideTitleBar(true);
} else if (mFirstY - mCurrentY > mTouchSlop) {
// 上滑 隐藏titleBar
showHideTitleBar(false);
}
break;
case MotionEvent.ACTION_UP:
break;
}
return false;
}
});
}
private Animator mAnimatorTitle;
private Animator mAnimatorContent;
private void showHideTitleBar(boolean tag) {
if (mAnimatorTitle != null && mAnimatorTitle.isRunning()) {
mAnimatorTitle.cancel();
}
if (mAnimatorContent != null && mAnimatorContent.isRunning()) {
mAnimatorContent.cancel();
}
if (tag) {
mAnimatorTitle = ObjectAnimator.ofFloat(mTitle, “translationY”, mTitle.getTranslationY(), 0);
mAnimatorContent = ObjectAnimator.ofFloat(mListView, “translationY”, mListView.getTranslationY(), getResources().getDimension(R.dimen.title_height));
} else {
mAnimatorTitle = ObjectAnimator.ofFloat(mTitle, “translationY”, mTitle.getTranslationY(), -mTitle.getHeight());
mAnimatorContent = ObjectAnimator.ofFloat(mListView, “translationY”, mListView.getTranslationY(), 0);
}
mAnimatorTitle.start();
mAnimatorContent.start();