<activity android:name=".TestInputActivity"
  android:windowSoftInputMode="adjustPan">

 <activity android:name=".TestInputActivity"
  android:windowSoftInputMode="adjustResize">

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:id="@+id/main"
 tools:context="com.example.liubin1.softkeyboardhelper.MainActivity">
 <EditText
 android:id="@+id/name"
 android:hint="請輸入用戶名："
 android:layout_centerInParent="true"
 android:layout_width="match_parent"
 android:layout_height="50dp"
 />
 <EditText
 android:id="@+id/pas"
 android:layout_below="@id/name"
 android:hint="請輸入密碼："
 android:layout_centerInParent="true"
 android:layout_width="match_parent"
 android:layout_height="50dp"
 />
 <Button
 android:id="@+id/login_btn"
 android:layout_below="@id/rpas"
 android:layout_centerHorizontal="true"
 android:text="登錄"
 android:layout_width="180dp"
 android:layout_height="50dp" />
</RelativeLayout>

RelativeLayout main = (RelativeLayout) findViewById(R.id.main);

Button login_btn = (Button) findViewById(R.id.login_btn);

//在Activity的onCreate里添加如下方法addLayoutListener(main,login_btn);/** 
 * addLayoutListener方法如下
 * @param main 根布局
 * @param scroll 需要顯示的最下方View
 */
 public void addLayoutListener(final View main, final View scroll) {
 main.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {  @Override
  public void onGlobalLayout() {
  Rect rect = new Rect();  //1、獲取main在窗體的可視區(qū)域
  main.getWindowVisibleDisplayFrame(rect);  //2、獲取main在窗體的不可視區(qū)域高度，在鍵盤沒有彈起時，main.getRootView().getHeight()調(diào)節(jié)度應(yīng)該和rect.bottom高度一樣
  int mainInvisibleHeight = main.getRootView().getHeight() - rect.bottom;  int screenHeight = main.getRootView().getHeight();//屏幕高度
  //3、不可見區(qū)域大于屏幕本身高度的1/4：說明鍵盤彈起了
  if (mainInvisibleHeight > screenHeight / 4) {   int[] location = new int[2];
   scroll.getLocationInWindow(location);   // 4､獲取Scroll的窗體坐標，算出main需要滾動的高度
   int srollHeight = (location[1] + scroll.getHeight()) - rect.bottom;   //5､讓界面整體上移鍵盤的高度
   main.scrollTo(0, srollHeight);
  } else {  //3、不可見區(qū)域小于屏幕高度1/4時,說明鍵盤隱藏了，把界面下移，移回到原有高度
   main.scrollTo(0, 0);
  }
  }
 });
 }
}

public class KeyboardLayout extends FrameLayout {
 private KeyboardLayoutListener mListener; private boolean mIsKeyboardActive = false; //輸入法是否激活
 private int mKeyboardHeight = 0; // 輸入法高度
 public KeyboardLayout(Context context) { this(context, null, 0);
 } public KeyboardLayout(Context context, AttributeSet attrs) { this(context, attrs, 0);
 } public KeyboardLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); // 監(jiān)聽布局變化
 getViewTreeObserver().addOnGlobalLayoutListener(new KeyboardOnGlobalChangeListener());
 } public void setKeyboardListener(KeyboardLayoutListener listener) {
 mListener = listener;
 } public KeyboardLayoutListener getKeyboardListener() { return mListener;
 } public boolean isKeyboardActive() { return mIsKeyboardActive;
 } /**
 * 獲取輸入法高度
 *
 * @return
 */
 public int getKeyboardHeight() { return mKeyboardHeight;
 } public interface KeyboardLayoutListener {
 /**
  * @param isActive 輸入法是否激活
  * @param keyboardHeight 輸入法面板高度
  */
 void onKeyboardStateChanged(boolean isActive, int keyboardHeight);
 } private class KeyboardOnGlobalChangeListener implements ViewTreeObserver.OnGlobalLayoutListener {
 int mScreenHeight = 0; private int getScreenHeight() {  if (mScreenHeight > 0) {  return mScreenHeight;
  }
  mScreenHeight = ((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE))
   .getDefaultDisplay().getHeight();  return mScreenHeight;
 } @Override
 public void onGlobalLayout() {
  Rect rect = new Rect();  // 獲取當前頁面窗口的顯示范圍
  ((Activity) getContext()).getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);  int screenHeight = getScreenHeight();  int keyboardHeight = screenHeight - rect.bottom; // 輸入法的高度
  boolean isActive = false;  if (Math.abs(keyboardHeight) > screenHeight / 4) {
  isActive = true; // 超過屏幕五分之一則表示彈出了輸入法
  mKeyboardHeight = keyboardHeight;
  }
  mIsKeyboardActive = isActive;  if (mListener != null) {
  mListener.onKeyboardStateChanged(isActive, keyboardHeight);
  }
 }
 }
}

public class KeyboardLayout extends FrameLayout {
 private KeyboardLayoutListener mListener; private boolean mIsKeyboardActive = false; //輸入法是否激活
 private int mKeyboardHeight = 0; // 輸入法高度
 public KeyboardLayout(Context context) { this(context, null, 0);
 } public KeyboardLayout(Context context, AttributeSet attrs) { this(context, attrs, 0);
 } public KeyboardLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); // 監(jiān)聽布局變化
 getViewTreeObserver().addOnGlobalLayoutListener(new KeyboardOnGlobalChangeListener());
 } public void setKeyboardListener(KeyboardLayoutListener listener) {
 mListener = listener;
 } public KeyboardLayoutListener getKeyboardListener() { return mListener;
 } public boolean isKeyboardActive() { return mIsKeyboardActive;
 } /**
 * 獲取輸入法高度
 *
 * @return
 */
 public int getKeyboardHeight() { return mKeyboardHeight;
 } public interface KeyboardLayoutListener {
 /**
  * @param isActive 輸入法是否激活
  * @param keyboardHeight 輸入法面板高度
  */
 void onKeyboardStateChanged(boolean isActive, int keyboardHeight);
 } private class KeyboardOnGlobalChangeListener implements ViewTreeObserver.OnGlobalLayoutListener {
 int mScreenHeight = 0; private int getScreenHeight() {  if (mScreenHeight > 0) {  return mScreenHeight;
  }
  mScreenHeight = ((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE))
   .getDefaultDisplay().getHeight();  return mScreenHeight;
 } @Override
 public void onGlobalLayout() {
  Rect rect = new Rect();  // 獲取當前頁面窗口的顯示范圍
  ((Activity) getContext()).getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);  int screenHeight = getScreenHeight();  int keyboardHeight = screenHeight - rect.bottom; // 輸入法的高度
  boolean isActive = false;  if (Math.abs(keyboardHeight) > screenHeight / 4) {
  isActive = true; // 超過屏幕五分之一則表示彈出了輸入法
  mKeyboardHeight = keyboardHeight;
  }
  mIsKeyboardActive = isActive;  if (mListener != null) {
  mListener.onKeyboardStateChanged(isActive, keyboardHeight);
  }
 }
 }
}

 /**
 * 監(jiān)聽鍵盤狀態(tài)，布局有變化時，靠scrollView去滾動界面
 */
 public void addLayoutListener() {
 bindingView.mainLl.setKeyboardListener(new KeyboardLayout.KeyboardLayoutListener() {  @Override
  public void onKeyboardStateChanged(boolean isActive, int keyboardHeight) {
  Log.e("onKeyboardStateChanged", "isActive:" + isActive + " keyboardHeight:" + keyboardHeight);  if (isActive) {
   scrollToBottom();
  }
  }
 });
 } /**
 * 彈出軟鍵盤時將SVContainer滑到底
 */
 private void scrollToBottom() {
 bindingView.loginLl.postDelayed(new Runnable() {  @Override
  public void run() {
  bindingView.loginLl.smoothScrollTo(0, bindingView.loginLl.getBottom() + SoftKeyInputHidWidget.getStatusBarHeight(LoginActivityForDiffkeyboardHeight.this));
  }
 }, 100);
 }

/**
 * 解決鍵盤檔住輸入框
 * Created by SmileXie on 2017/4/3.
 */public class SoftHideKeyBoardUtil {
 public static void assistActivity (Activity activity) { new SoftHideKeyBoardUtil(activity);
 } private View mChildOfContent; private int usableHeightPrevious; private FrameLayout.LayoutParams frameLayoutParams; //為適應(yīng)華為小米等手機鍵盤上方出現(xiàn)黑條或不適配
 private int contentHeight;//獲取setContentView本來view的高度
 private boolean isfirst = true;//只用獲取一次
 private int statusBarHeight;//狀態(tài)欄高度
 private SoftHideKeyBoardUtil(Activity activity) { //1､找到Activity的最外層布局控件，它其實是一個DecorView,它所用的控件就是FrameLayout
 FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content); //2､獲取到setContentView放進去的View
 mChildOfContent = content.getChildAt(0); //3､給Activity的xml布局設(shè)置View樹監(jiān)聽，當布局有變化，如鍵盤彈出或收起時，都會回調(diào)此監(jiān)聽 
  mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { //4､軟鍵盤彈起會使GlobalLayout發(fā)生變化
  public void onGlobalLayout() {  if (isfirst) {
   contentHeight = mChildOfContent.getHeight();//兼容華為等機型
   isfirst = false;
  }  //5､當前布局發(fā)生變化時，對Activity的xml布局進行重繪
  possiblyResizeChildOfContent();
  }
 }); //6､獲取到Activity的xml布局的放置參數(shù)
 frameLayoutParams = (FrameLayout.LayoutParams) mChildOfContent.getLayoutParams();
 } // 獲取界面可用高度，如果軟鍵盤彈起后，Activity的xml布局可用高度需要減去鍵盤高度 
 private void possiblyResizeChildOfContent() { //1､獲取當前界面可用高度，鍵盤彈起后，當前界面可用布局會減少鍵盤的高度
 int usableHeightNow = computeUsableHeight(); //2､如果當前可用高度和原始值不一樣
 if (usableHeightNow != usableHeightPrevious) {  //3､獲取Activity中xml中布局在當前界面顯示的高度
  int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();  //4､Activity中xml布局的高度-當前可用高度
  int heightDifference = usableHeightSansKeyboard - usableHeightNow;  //5､高度差大于屏幕1/4時，說明鍵盤彈出
  if (heightDifference > (usableHeightSansKeyboard/4)) {  // 6､鍵盤彈出了，Activity的xml布局高度應(yīng)當減去鍵盤高度
  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){
   frameLayoutParams.height = usableHeightSansKeyboard - heightDifference + statusBarHeight;
  } else {
   frameLayoutParams.height = usableHeightSansKeyboard - heightDifference;
  }
  } else {
  frameLayoutParams.height = contentHeight;
  }  //7､ 重繪Activity的xml布局
  mChildOfContent.requestLayout();
  usableHeightPrevious = usableHeightNow;
 }
 } private int computeUsableHeight() {
 Rect r = new Rect();
 mChildOfContent.getWindowVisibleDisplayFrame(r); // 全屏模式下：直接返回r.bottom，r.top其實是狀態(tài)欄的高度
 return (r.bottom - r.top);
 }
}

FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content);

mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener({ 
 possiblyResizeChildOfContent();
});

private int computeUsableHeight() {
 Rect rect = new Rect();
 mChildOfContent.getWindowVisibleDisplayFrame(rect); // rect.top其實是狀態(tài)欄的高度，如果是全屏主題，直接 return rect.bottom就可以了
 return (rect.bottom - rect.top);
}

android:windowSoftInputMode="stateHidden|adjustPan"