android虚拟键盘适配

[lyxxman]

方案一：
针对一般界面，使用主题设置，就行了。
方案二：
全屏页面或者沉侵式状态栏页面，可以使用下面的方案：
public class NavigationBarUtil {
private static NavigationBarUtil instance;

public static void initActivity(View content, boolean isChengQingShi) {
    instance = new NavigationBarUtil(content, isChengQingShi);
}

public static void destroy() {
    if (instance != null) {
        instance.destoryed();
        instance = null;
    }
}

public static NavigationBarUtil getInstance(View content, boolean isChengQingShi) {
    if (instance == null) {
        instance = new NavigationBarUtil(content, isChengQingShi);
    }
    return instance;
}

private View mObserved;//被监听的视图
private int usableHeightView;//视图变化前的可用高度
private ViewGroup.LayoutParams layoutParams;
private boolean isChenQingShi = false;

private NavigationBarUtil(View content, final boolean isChenQingShi) {
    mObserved = content;
    this.isChenQingShi = isChenQingShi;
}

public void register() {
    //给View添加全局的布局监听器监听视图的变化
    mObserved.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        public void onGlobalLayout() {
            resetViewHeight(isChenQingShi);
        }
    });
    layoutParams = mObserved.getLayoutParams();
}

public void unRegister() {
    //给View添加全局的布局监听器监听视图的变化
    mObserved.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        public void onGlobalLayout() {
        }
    });
    layoutParams = mObserved.getLayoutParams();
}

private void destoryed() {
    mObserved = null;

}

/**
 * 重置视图的高度，使不被底部虚拟键遮挡
 */
private void resetViewHeight(boolean isChenQinShi) {
    int usableHeightViewNow = CalculateAvailableHeight(isChenQinShi);
    //比较布局变化前后的View的可用高度
    if (usableHeightViewNow != usableHeightView) {
        //如果两次高度不一致
        //将当前的View的可用高度设置成View的实际高度
        layoutParams.height = usableHeightViewNow;
        mObserved.requestLayout();//请求重新布局
        usableHeightView = usableHeightViewNow;
    }
}

/**
 * 计算试图高度
 *
 * @return
 */
private int CalculateAvailableHeight(boolean isChegnQingShi) {
    Rect r = new Rect();
    mObserved.getWindowVisibleDisplayFrame(r);

// return (r.bottom - r.top);//如果不是沉浸状态栏，需要减去顶部高度
if (isChegnQingShi) {
return (r.bottom);//如果是沉浸状态栏
} else {
return (r.bottom - r.top);
}

}

/**
 * 判断底部是否有虚拟键
 *
 * @param context
 * @return
 */
public static boolean hasNavigationBar(Context context) {
    boolean hasNavigationBar = false;
    Resources rs = context.getResources();
    int id = rs.getIdentifier("config_showNavigationBar", "bool", "android");
    if (id > 0) {
        hasNavigationBar = rs.getBoolean(id);
    }
    try {
        Class systemPropertiesClass = Class.forName("android.os.SystemProperties");
        Method m = systemPropertiesClass.getMethod("get", String.class);
        String navBarOverride = (String) m.invoke(systemPropertiesClass, "qemu.hw.mainkeys");
        if ("1".equals(navBarOverride)) {
            hasNavigationBar = false;
        } else if ("0".equals(navBarOverride)) {
            hasNavigationBar = true;
        }
    } catch (Exception e) {

    }
    return hasNavigationBar;

}

}
使用方法：
在oncreateView里面判断是否有虚拟键盘就行。