小编Cla*_*l X的帖子

一旦我尝试使用a CheckBox,我注意到了这一点.然后我测试了其余的,看看我是否从他们那里得到了错误.结果我从很少的小部件中得到错误.

我不能使用CheckBoxes,ProgressBars,Seekbars.

细节 :

java.lang.NoSuchMethodError: android.graphics.drawable.VectorDrawable_Delegate.nCreateTreeFromCopy(JJ)J
at android.graphics.drawable.VectorDrawable.nCreateTreeFromCopy(VectorDrawable.java)
at android.graphics.drawable.VectorDrawable.access$400(VectorDrawable.java:204)
at android.graphics.drawable.VectorDrawable$VectorDrawableState.createNativeTreeFromCopy(VectorDrawable.java:837)
at android.graphics.drawable.VectorDrawable$VectorDrawableState.<init>(VectorDrawable.java:812)
at android.graphics.drawable.VectorDrawable.mutate(VectorDrawable.java:268)
at android.graphics.drawable.AnimatedVectorDrawable.inflate(AnimatedVectorDrawable.java:374)
at android.graphics.drawable.DrawableInflater.inflateFromXml(DrawableInflater.java:130)
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1224)
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1197)
at com.android.layoutlib.bridge.impl.ResourceHelper.getDrawable(ResourceHelper.java:315)
at android.content.res.BridgeTypedArray.getDrawable(BridgeTypedArray.java:681)
at android.widget.ProgressBar.<init>(ProgressBar.java:318)
at android.widget.ProgressBar.<init>(ProgressBar.java:268)
at android.widget.ProgressBar.<init>(ProgressBar.java:264)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:645)
at android.view.BridgeInflater.onCreateView(BridgeInflater.java:107)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:717)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:785)
at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:149)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:858)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:70)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:834)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:861)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:70)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:834)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821)
at …

我想知道我是否可以为1个项目添加多个域数据库.例如1#realm数据库用于电话号码,#2用于书籍名称等.

我有像这样创建的Firebase数据:

我需要获取第二个对象的ID.我试图使用getKey()方法,但它返回"Post"..我想获得唯一的ID.我使用此代码添加值:

private DatabaseReference refposts;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    context = this;
    refposts = FirebaseDatabase.getInstance().getReference("Posts");
    Posts posts = new Posts();
    posts.setTitle("Title2");
    posts.setDesc("Desc2?");
    posts.setWriter("user-1");
    refposts.child("Post").push().setValue(posts);
}