小编you*_*_08的帖子

我需要在 Android 中创建收据布局。这个想法很简单，一个带有锯齿形顶部的矩形布局。

甚至，我试过虚线但没有任何效果。

<shape xmlns:android="http://schemas.android.com/apk/res/android"
 android:shape="line">

<stroke
   android:color="#FF00"
   android:dashWidth="5dp"
   android:dashGap="5dp" />
</shape>

我想在布局的一角有一个徽章。我设法将徽章放入布局中，但无法在布局的一角实现。

目前，我的代码给了我：

我想要的是：我想将此徽章放置在布局的右上角。

我想要这样的东西：

Toolbar.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar 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="@dimen/toolbar_height"
    android:background="@color/toolbar_color"
    android:contentInsetLeft="0dp"
    android:contentInsetStart="0dp"
    android:elevation="4dp"
    android:theme="@style/ThemeOverlay.AppCompat.Dark"
    app:contentInsetLeft="0dp"
    app:contentInsetStart="0dp">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:weightSum="1"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/textview"
            android:text="My Assignments"
            android:layout_gravity="center"
            android:gravity="center"
            android:layout_marginLeft="90dp"
            android:layout_weight="0.5"
            android:textSize="20sp"
            />

        <RelativeLayout
        android:id="@+id/bell_linearlayout1"
        android:layout_width="35dp"
        android:layout_height="35dp"
        android:layout_gravity="center"
        android:layout_marginLeft="15dp">

        <RelativeLayout
            android:id="@+id/bell_linearlayout"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_gravity="center"
            android:background="#75aadb">
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="2dp"
                android:layout_centerInParent="true"
                android:id="@+id/cartIconImageView"
                android:src="@drawable/notification"/>
        </RelativeLayout>

        <RelativeLayout
            android:layout_width="25dip"
            android:layout_height="25dip"
            android:gravity="end|top|right"
            android:layout_alignParentTop="true"
            android:layout_marginBottom="100dp"
            android:layout_marginLeft="20dp">

            <TextView
                android:id="@+id/textView1"
                android:layout_width="15dp"
                android:layout_height="15dp"
                android:layout_alignParentTop="true"
                android:background="@drawable/badge" />
        </RelativeLayout>

</RelativeLayout>
        <LinearLayout
            android:layout_width="35dp"
            android:layout_height="35dp"
            android:background="#75aadb"
            android:id="@+id/accountinfo_layout" …

我的适配器列表在广播接收器上刷新.

如果适配器列表大小大于1,一切正常工作,意味着如果我的recyclerview已经有一行shwoing然后列表刷新就好了.但是如果列表大小从0变为1,那么我的适配器通知数据集已更改停止工作.在recyclerview上没有数据显示.我不知道为什么它不起作用.

Recyclerview类:

     @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        v = inflater.inflate(R.layout.job_recyclerview, container, false);
getActivity());
        initialise(v);
        init();
        showNoTaskMessage();
        new loadListTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
        mMyBroadcastReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                // Here you can refresh your listview or other UI


                SlidingTab.slidingTab.getTabAt(0).setText("New (" + SingleTon.getInstance().getNewjob() + ")");
                SlidingTab.slidingTab.getTabAt(1).setText("In Progress (" + SingleTon.getInstance().getInprogressjob() + ")");;
                SlidingTab.slidingTab.getTabAt(2).setText("Completed (" + SingleTon.getInstance().getCompletedjob() + ")");

            }

        };

        try {

            IntentFilter filter = new IntentFilter("newJob");
            LocalBroadcastManager.getInstance(context).registerReceiver(mMyBroadcastReceiver,
                    filter);

        } catch (Exception …

I am using floating action button of Android Design Library in my app which is working fine on lollipop and above versions but getting crashed on pre-lollipop version (4.0-4.2.2) . I am really stuck and unable to figure out the issue .

Error:

FATAL EXCEPTION: main android.view.InflateException: Binary XML file line #396: Error inflating class android.support.design.widget.FloatingActionButton at android.view.LayoutInflater.createView(LayoutInflater.java:619) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:693) at android.view.LayoutInflater.rInflate(LayoutInflater.java:752) at android.view.LayoutInflater.inflate(LayoutInflater.java:495) at android.view.LayoutInflater.inflate(LayoutInflater.java:397) at com.example.sony.bluedolphintrialapp.DhampureFragment.onCreateView(DhampureFragment.java:18) at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:955) android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138 android.support.v4.app.BackStackRecord.run(BackStackRecord.java:740)

android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1501)

android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:458) at android.os.Handler.handleCallback(Handler.java:725) at android.os.Handler.dispatchMessage(Handler.java:92) …

我的相对布局有两个子Rcyclerview(不可见)和进度条.

我想要的是:布局的创建,recyclelerview到隐形和进度条显示,直到AsyncTask(从SD文件夹获取图像)完成并且recyclerview可见并且进度条不可见.

发生了什么:我的应用程序没有显示进度条.在asyctask完成后,我的recyclerview出现了.

XML:

 <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_below="@+id/view3">

                <android.support.v7.widget.RecyclerView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:paddingTop="5dp"
                    android:divider="@null"
                    android:visibility="invisible"
                    android:id="@+id/recycler_view_cameragallery"
                    android:dividerHeight="0dp"
                    android:fadingEdge="none" />

                <ProgressBar
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:id="@+id/progressBar_Gallery"
                    style="?android:attr/progressBarStyleLarge"
                    android:layout_centerInParent="true"
                    android:layout_gravity="center"
                    android:padding="12dp" />
            </RelativeLayout>

ActivityCode:

public View onCreateView(LayoutInflater inflater,@Nullable ViewGroup container,@Nullable Bundle savedInstanceState){

        View rootView=inflater.inflate(R.layout.camera_layout,container,false);
        rootView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));
        ButterKnife.inject(this,rootView);
        init();
        initialise(rootView);
        initialiseListeners();
        listofImagesPath = new ArrayList<String>();
        new mediaScanAyscTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);}

的AsyncTask

public class mediaScanAyscTask extends AsyncTask<Void,Void,Void>{

        @Override
        protected Void doInBackground(Void... params) {

            return null;
        }

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            adapter.clearApplications();
            galleryProgressBar.setVisibility(View.VISIBLE);
            galleryProgressBar.getIndeterminateDrawable().setColorFilter(Color.parseColor("#ff4081"), PorterDuff.Mode.MULTIPLY);
            cameraRecyclerView.setVisibility(View.INVISIBLE); …

我想更改searchview的边框颜色.现在它变得透明了.我尝试给它造型但没有任何效果.

SearchView.xml

 <LinearLayout
        android:id="@+id/linear1"
        android:background="@android:color/white"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="1">

    <android.support.v7.widget.SearchView
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:id="@+id/searchView"
        android:background="@android:color/white"
        android:layout_marginTop="10dp"
        style="@style/CitySearchView"
        android:layout_weight="0.9"
        android:layout_marginLeft="10dp"/>

风格= "@风格/ CitySearchView"

<style name="CitySearchView" parent="Widget.AppCompat.Light.SearchView">
        <item name="searchIcon">@drawable/blue_search_bar</item>
        <item name="colorControlActivated">@color/labelColorHighligh</item>
        <item name="colorControlNormal">@color/backgroud_user</item>
        <item name="queryBackground">@color/labelColorHighligh</item>

    </style>

style.xml

 <LinearLayout
        android:id="@+id/linear1"
        android:background="@android:color/white"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="1">

    <android.support.v7.widget.SearchView
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:id="@+id/searchView"
        android:background="@android:color/white"
        android:layout_marginTop="10dp"
        style="@style/CitySearchView"
        android:layout_weight="0.9"
        android:layout_marginLeft="10dp"/>