/** * @param root 最外层布局,需要调整的布局 * @param scrollToView 被键盘遮挡的scrollToView,滚动root,使scrollToView在root可视区域的底部 */ private void controlKeyboardLayout(final View root, final View scrollToView) { root.getViewTreeObserver().addOnGlobalLayoutListener( new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { Rect rect = new Rect(); //获取root在窗体的可视区域 root.getWindowVisibleDisplayFrame(rect); //获取root在窗体的不可视区域高度(被其他View遮挡的区域高度) int rootInvisibleHeight = root.getRootView().getHeight() - rect.bottom; //若不可视区域高度大于100,则键盘显示 if (rootInvisibleHeight > 100) { int[] location = new int[2]; //获取scrollToView在窗体的坐标 scrollToView.getLocationInWindow(location); //计算root滚动高度,使scrollToView在可见区域的底部 int srollHeight = (location[1] + scrollToView.getHeight()) - rect.bottom; root.scrollTo(0, srollHeight); } else { //键盘隐藏 root.scrollTo(0, 0); } } }); }
效果图如下:
下面提供完整的代码及布局文件:
1. MainActivity
public class MainActivity extends Activity { private LinearLayout mRoot; private Button mSubmit; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mRoot = (LinearLayout) findViewById(R.id.root); mSubmit = (Button) findViewById(R.id.submit); controlKeyboardLayout(mRoot, mSubmit); } /** * @param root 最外层布局,需要调整的布局 * @param scrollToView 被键盘遮挡的scrollToView,滚动root,使scrollToView在root可视区域的底部 */ private void controlKeyboardLayout(final View root, final View scrollToView) { root.getViewTreeObserver().addOnGlobalLayoutListener( new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { Rect rect = new Rect(); //获取root在窗体的可视区域 root.getWindowVisibleDisplayFrame(rect); //获取root在窗体的不可视区域高度(被其他View遮挡的区域高度) int rootInvisibleHeight = root.getRootView().getHeight() - rect.bottom; //若不可视区域高度大于100,则键盘显示 if (rootInvisibleHeight > 100) { int[] location = new int[2]; //获取scrollToView在窗体的坐标 scrollToView.getLocationInWindow(location); //计算root滚动高度,使scrollToView在可见区域 int srollHeight = (location[1] + scrollToView.getHeight()) - rect.bottom; root.scrollTo(0, srollHeight); } else { //键盘隐藏 root.scrollTo(0, 0); } } }); }
}
2. activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/root" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:gravity="center_vertical" > <EditText android:layout_width="fill_parent" android:layout_height="50dip" android:hint="edit1"/> <EditText android:layout_width="fill_parent" android:layout_height="50dip" android:hint="edit2"/> <EditText android:layout_width="fill_parent" android:layout_height="50dip" android:hint="edit3"/> <Button android:id="@+id/submit" android:layout_width="fill_parent" android:layout_height="50dip" android:text="submit"/>
</LinearLayout> |