android 解决输入法键盘遮盖布局问题

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>

原文地址：http://blog.csdn.net/yqichang/article/details/11705235