软键盘显示和隐藏的工具类
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.graphics.Rect;
import android.os.Build;
import android.util.DisplayMetrics;
import android.view.inputmethod.InputMethodManager;
public class SoftKeyboardUtils {
/**
* 隐藏或显示软键盘
* 如果现在是显示调用后则隐藏 反之则显示
* @param activity
*/
public static void showORhideSoftKeyboard(Activity activity){
InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
}
/**
* 强制显示软键盘
* @param activity
*/
public static void showSoftKeyboard(Activity activity){
InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(activity.getWindow().getDecorView(),InputMethodManager.SHOW_FORCED);
}
/**
* 强制隐藏软键盘
* @param activity
*/
public static void hideSoftKeyboard(Activity activity){
InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), 0); //强制隐藏键盘
}
/**
* 调用系统方法 强制隐藏软键盘
* @param activity
*/
public static void hideSystemSoftKeyboard(Activity activity){
((InputMethodManager)activity.getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
}
/**
* 判断软键盘是否显示方法
* @param activity
* @return
*/
public static boolean isSoftShowing(Activity activity) {
//获取当屏幕内容的高度
int screenHeight = activity.getWindow().getDecorView().getHeight();
//获取View可见区域的bottom
Rect rect =new Rect();
//DecorView即为activity的顶级view
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
//考虑到虚拟导航栏的情况（虚拟导航栏情况下：screenHeight = rect.bottom + 虚拟导航栏高度）
//选取screenHeight*2/3进行判断
return screenHeight*2/3 > rect.bottom+getSoftButtonsBarHeight(activity);
}
/**
* 底部虚拟按键栏的高度
* @return
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private static int getSoftButtonsBarHeight(Activity activity) {
DisplayMetrics metrics =new DisplayMetrics();
//这个方法获取可能不是真实屏幕的高度
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
int usableHeight = metrics.heightPixels;
//获取当前屏幕的真实高度
activity.getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
int realHeight = metrics.heightPixels;
if (realHeight > usableHeight) {
return realHeight - usableHeight;
}else {
return 0;
}
}
}
