小编bal*_*uri的帖子

我正在制作一个media player需要设置均衡器效果,"seek Baar"因为"Bass","terrible","Rock","Pop","Medium"..我得到了一个链接,其中为此做了一些NDK库使用..是否有任何Java库来做它并请任何解释什么是逻辑这样做.我被困在这里2天.任何帮助将不胜感激...

 @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.equalizertab);


      f
   }
  } else {
   try {
    ((GlobalState) getApplicationContext())
      .resetEQ();
   } catch (RemoteException re) {
    // TODO:
   }
  }
 }
});

记录下面的猫:

05-25 11:52:16.630: E/AndroidRuntime(19088): FATAL EXCEPTION: main
05-25 11:52:16.630: E/AndroidRuntime(19088): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.apis.media/com.example.android.apis.media.AudioFxDemoActivity}: java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -1
05-25 11:52:16.630: E/AndroidRuntime(19088):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1818)
05-25 11:52:16.630: E/AndroidRuntime(19088):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1834)
05-25 11:52:16.630: E/AndroidRuntime(19088):    at android.app.ActivityThread.access$500(ActivityThread.java:122)
05-25 11:52:16.630: E/AndroidRuntime(19088):    at …

这是我的主要布局:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:animateLayoutChanges="true"
android:orientation="vertical">

<RelativeLayout
    android:id="@+id/top_con"
    android:layout_width="match_parent"
    android:layout_height="64dp"
    android:background="#cc0000">

    <TextView
        android:id="@+id/close"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:clickable="true"
        android:text="Close"
        android:textColor="#ffffff" />
</RelativeLayout>

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#ffffff">


    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/blue"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

    </android.support.design.widget.AppBarLayout>

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/green"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />


</android.support.design.widget.CoordinatorLayout>

在事件onClick on TextView(id/close)之后,我将visibility for RelativeLayout(id/top_con)设置为GONE.但是FrameLayout(包含一个回收者视图)仍然是keep their height,并且在屏幕底部有一个白色空间(白色是CoordinatorLayout的背景颜色).什么是问题,如何解决？谢谢!