Android获取软键盘的高度、键盘的打开与关闭、监听键盘处于打开还是关闭状态

最近在项目中，需要获取到软键盘的高度，再将底部的布局上移键盘的高度，话不多说，直接上代码：

获取软键盘高度

    //一个静态变量存储高度public static int keyboardHeight = 0;boolean isVisiableForLast = false;ViewTreeObserver.OnGlobalLayoutListener onGlobalLayoutListener = null;public void addOnSoftKeyBoardVisibleListener() {if (keyboardHeight > 0) {return;}final View decorView = getWindow().getDecorView();onGlobalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {@Overridepublic void onGlobalLayout() {Rect rect = new Rect();decorView.getWindowVisibleDisplayFrame(rect);//计算出可见屏幕的高度int displayHight = rect.bottom - rect.top;//获得屏幕整体的高度int hight = decorView.getHeight();boolean visible = (double) displayHight / hight < 0.8;int statusBarHeight = 0;try {Class c = Class.forName("com.android.internal.R$dimen");Object obj = c.newInstance();Field field = c.getField("status_bar_height");int x = Integer.parseInt(field.get(obj).toString());statusBarHeight = getApplicationContext().getResources().getDimensionPixelSize(x);} catch (Exception e) {e.printStackTrace();}if (visible && visible != isVisiableForLast) {//获得键盘高度keyboardHeight = hight - displayHight - statusBarHeight;Log.i("keyboardHeight==1213==", "" + keyboardHeight);}isVisiableForLast = visible;}};decorView.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayoutListener);}

键盘的打开与关闭操作：

public class KeybordS {/*** 打开软键盘*/public static void openKeybord(EditText mEditText, Context mContext) {mEditText.setFocusable(true);mEditText.setFocusableInTouchMode(true);mEditText.requestFocus();InputMethodManager imm = (InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE);imm.showSoftInput(mEditText, InputMethodManager.RESULT_SHOWN);imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,InputMethodManager.HIDE_IMPLICIT_ONLY);}/*** 关闭软键盘*/public static void closeKeybord(EditText mEditText, Context mContext) {InputMethodManager imm = (InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE);imm.hideSoftInputFromWindow(mEditText.getWindowToken(), 0);}/*** 关闭软键盘*/public static void hideInput(Activity activity) {if (activity.getCurrentFocus() != null) {InputMethodManager inputManager = (InputMethodManager) activity.getSystemService(INPUT_METHOD_SERVICE);inputManager.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), 0);}}/*** 判断当前软键盘是否打开*/public static boolean isSoftInputShow(Activity activity) {// 虚拟键盘隐藏 判断view是否为空View view = activity.getWindow().peekDecorView();if (view != null) {// 隐藏虚拟键盘InputMethodManager inputmanger = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
//       inputmanger.hideSoftInputFromWindow(view.getWindowToken(),0);return inputmanger.isActive() && activity.getWindow().getCurrentFocus() != null;}return false;}}

监听键盘处于打开还是关闭状态：

private void setListenerToRootView() {final View rootView = getWindow().getDecorView().findViewById(android.R.id.content);rootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {@Overridepublic void onGlobalLayout() {boolean mKeyboardUp = isKeyboardShown(rootView);if (mKeyboardUp) {//键盘弹出//Toast.makeText(getApplicationContext(), "键盘弹出", Toast.LENGTH_SHORT).show(); } else {//键盘收起//Toast.makeText(getApplicationContext(), "键盘收起", Toast.LENGTH_SHORT).show();}}});
}private boolean isKeyboardShown(View rootView) {final int softKeyboardHeight = 100;Rect r = new Rect();rootView.getWindowVisibleDisplayFrame(r);DisplayMetrics dm = rootView.getResources().getDisplayMetrics();int heightDiff = rootView.getBottom() - r.bottom;return heightDiff > softKeyboardHeight * dm.density;
}

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