模仿QQ登录界面解决软键盘遮挡按钮问题

package com.example.qq.support; import android.app.Activity; import android.content.Context; import android.content.pm.ActivityInfo; import android.graphics.Rect; import android.util.Log; import android.view.View; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import android.view.WindowManager; import android.view.inputmethod.InputMethodManager; public class KeyboardHelper { private Activity activity; private OnKeyboardStatusChangeListener onKeyboardStatusChangeListener; private int windowBottom = -1; private int keyboardHeight = 0; public KeyboardHelper(Activity activity) { this.activity = activity; activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); if (activity.getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) { activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } } public void onCreate() { View content = activity.findViewById(android.R.id.content); // content.addOnLayoutChangeListener(listener); 这个方法有时会出现一些问题 content.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayoutListener); } public void onDestroy() { View content = activity.findViewById(android.R.id.content); ViewUtils.removeOnGlobalLayoutListener(content, onGlobalLayoutListener); } private OnGlobalLayoutListener onGlobalLayoutListener = new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { Rect rect = new Rect(); activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect); Log.d("KeyboardHelper", "onGlobalLayout: " + rect + ", " + windowBottom); int newBottom = rect.bottom; if (windowBottom != -1 && windowBottom != newBottom) { if (newBottom < windowBottom) { // keyboard pop keyboardHeight = windowBottom - newBottom; if (onKeyboardStatusChangeListener != null) { onKeyboardStatusChangeListener.OnKeyBoardPop(keyboardHeight); } } else { // keyboard close if (onKeyboardStatusChangeListener != null) { onKeyboardStatusChangeListener.OnKeyBoardClose(keyboardHeight); } } } windowBottom = newBottom; } }; public void setOnKeyboardStatusChangeListener( OnKeyboardStatusChangeListener onKeyboardStatusChangeListener) { this.onKeyboardStatusChangeListener = onKeyboardStatusChangeListener; } public void showKeyboard(final View editText) { editText.requestFocus(); InputMethodManager manager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE); manager.showSoftInput(editText, 0); } public void hideKeyboard(View editText) { InputMethodManager manager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE); manager.hideSoftInputFromWindow(editText.getWindowToken(), 0); } public interface OnKeyboardStatusChangeListener { void OnKeyBoardPop(int keyboardHeight); void OnKeyBoardClose(int keyboardHeight); } }