android - 将闪烁添加到自定义 ListView 项目？

Question

我创建了一个包含多个项目的 listview，并且我为这些项目添加了边框，因此它看起来像这样:

由于这个自定义边框，项目的原始闪烁被阻止，所以它不会出现，我试图通过动画添加闪烁，但延迟太多，主线程上的工作太多，我还在线程内使用了动画，但它与延迟的事情相同，这迫使我忘记了动画所以无论如何我可以在不使用动画或使用它但以有效的方式点击它时使它闪烁我在 onItemClickListener 中使用闪烁动画的方式你可以在下面的代码中找到它: onItemClickListener 处理闪烁:

dataList.setOnItemClickListener(new OnItemClickListener() {

                @Override
                public void onItemClick(AdapterView<?> arg0, final View arg1,
                        final int arg2, long arg3) {
                    // TODO Auto-generated method stub
                    tvWarningNoEmp.setVisibility(View.GONE);
                    // adding blink

                                final Animation animation = new AlphaAnimation(
                                        1, 0); // Change
                                // alpha
                                // from
                                // fully
                                // visible
                                // to
                                // invisible
                                animation.setDuration(100); // duration - half a
                                                            // second
                                animation
                                        .setInterpolator(new LinearInterpolator()); // do
                                // not
                                // alter
                                // animation
                                // rate
                                animation.setRepeatCount(Animation.INFINITE); // Repeat
                                // animation
                                // infinitely
                                animation.setRepeatMode(Animation.REVERSE);
                                arg1.startAnimation(animation);
                                // blink one time timer
                                new CountDownTimer(100, 100) {// CountDownTimer(edittext1.getText()+edittext2.getText())
                                                                // also parse it to long

                                    public void onTick(long millisUntilFinished) {

                                        // here you can have your logic to set text to
                                        // edittext
                                    }

                                    public void onFinish() {
                                        arg1.clearAnimation();
                                    }
                                }.start();



                                // set margins for tickets buttons
                                LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                                        LayoutParams.WRAP_CONTENT,
                                        LayoutParams.WRAP_CONTENT);
                                params.setMargins(0, 0, 30, 0);
                                bAssign.setLayoutParams(params);
                                LinearLayout.LayoutParams paramsO = new LinearLayout.LayoutParams(
                                        LayoutParams.WRAP_CONTENT,
                                        LayoutParams.WRAP_CONTENT);
                                paramsO.setMargins(110, 0, 0, 0);
                                bEmpChat.setLayoutParams(paramsO);
                                noEmpLayout.setVisibility(LinearLayout.GONE);
                                empLayout.setVisibility(LinearLayout.VISIBLE);
                                Employee item = adapter.getItem(arg2);
                                ivEmpIcon.setBackgroundResource(R.drawable.free);
                                tvEmpName.setText(" " + item.getEmpName());
                                tvEmpDetails.setText(" " + item.getEmpDetails());
                                empLongitude = item.getEmpLongitude();
                                empLatitude = item.getEmpLatitude();
                                CameraPosition cameraPosition = new CameraPosition.Builder()
                                        .target(new LatLng(empLatitude, empLongitude))
                                        .zoom(15).build();
                                googleEmpMap.animateCamera(CameraUpdateFactory
                                        .newCameraPosition(cameraPosition));
                                MarkerOptions marker = new MarkerOptions().position(
                                        new LatLng(empLatitude, empLongitude)).title(
                                        tvEmpName.getText().toString());
                                marker.icon(BitmapDescriptorFactory
                                        .defaultMarker(BitmapDescriptorFactory.HUE_RED));
                                googleEmpMap.addMarker(marker);
                                // based on item add info to intent
                                // hide button directions
                                bEmpDirections.setVisibility(View.GONE);
                                // current address
                                Geocoder geocoder;
                                List<Address> addresses;
                                geocoder = new Geocoder(getApplicationContext(), Locale
                                        .getDefault());
                                try {
                                    addresses = geocoder.getFromLocation(empLatitude,
                                            empLongitude, 1);
                                    String street = addresses.get(0).getAddressLine(0);
                                    String state = addresses.get(0).getAdminArea();
                                    String country = addresses.get(0).getCountryName();
                                    tvEmpCurrentAdd.setText(" " + country + "-" + state
                                            + "-" + street + " st.");
                                } catch (IOException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();}





                }

            });

ListView 布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/redborder" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >
<LinearLayout
   android:layout_width="match_parent"
        android:layout_height="wrap_content"
    >
        <Button
            android:id="@+id/btnBack"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="5dp"
            android:background="@drawable/back" />

        <TextView
            android:id="@+id/tvWarningNoEmp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="choose an employee from here to assign this problem to!"
            android:textColor="#FF0000" 
            android:layout_marginLeft="400dp"
            android:visibility="gone"/>

</LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal" >

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginBottom="40dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp"

                android:layout_weight="2"
                android:background="@drawable/pepsiborder"
                android:orientation="vertical" >

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginTop="10dp"
                    android:background="@drawable/blueborder"
                    android:orientation="horizontal"
                    android:padding="10dp" >

                    <ImageView
                        android:id="@+id/TicketIcon"
                        android:layout_width="60dp"
                        android:layout_height="60dp"
                        android:layout_gravity="center_vertical"
                        android:layout_weight="0.1" />

                    <LinearLayout
                        android:layout_width="fill_parent"
                        android:layout_height="fill_parent"
                        android:layout_weight="0.7"
                        android:gravity="center_vertical"
                        android:orientation="vertical" >

                        <TextView
                            android:id="@+id/ticketCat"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_gravity="center_vertical"
                            android:layout_marginLeft="7dp"
                            android:gravity="center_vertical"
                            android:textColor="#D3D9FF"
                            android:textSize="17sp" />
                    </LinearLayout>
                </LinearLayout>

                <fragment
                    android:id="@+id/ticketMap"
                    android:name="com.google.android.gms.maps.MapFragment"
                    android:layout_width="match_parent"
                    android:layout_height="200dp"
                    android:layout_marginBottom="10dp"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginTop="10dp" />

<ScrollView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="10dp"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:orientation="vertical" >

                    <LinearLayout
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" >

                        <TextView
                            android:id="@+id/textView2"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="State:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#D3D9FF" />

                        <TextView
                            android:id="@+id/ticketState"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text=""
                            android:textColor="#D3D9FF" />
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" >

                        <TextView
                            android:id="@+id/textView1"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="Ticket No:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#D3D9FF" />

                        <TextView
                            android:id="@+id/ticketNo"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text=""
                            android:textColor="#D3D9FF" />
                    </LinearLayout>
                    <LinearLayout
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" >

                        <TextView
                            android:id="@+id/textView12"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="Report Date:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#D3D9FF" />

                        <TextView
                            android:id="@+id/ticketReportDate"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text=""
                            android:textColor="#D3D9FF" />
                    </LinearLayout>


                        <TextView
                            android:id="@+id/textView13"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="Details:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#D3D9FF" />

                        <TextView
                            android:id="@+id/ticketDetails"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text=""
                            android:textColor="#D3D9FF" />

                </LinearLayout>
</ScrollView>
                <LinearLayout
                    android:id="@+id/llBtn"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="bottom"
                    android:layout_marginBottom="10dp"
                    android:layout_marginTop="170dp"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:background="@drawable/blueborder"
                    android:orientation="horizontal"
                    android:padding="10dp" >

                    <Button
                        android:id="@+id/btnTicketDirections"
                        android:layout_width="match_parent"
                        android:layout_height="30dp"
                        android:layout_weight="1"
                        android:background="@drawable/directions" />

                    <Button
                        android:id="@+id/btnSolve"
                        android:layout_width="match_parent"
                        android:layout_height="30dp"
                        android:layout_weight="1"
                        android:background="@drawable/solve" />

                    <Button
                        android:id="@+id/btnOther"
                        android:layout_width="match_parent"
                        android:layout_height="30dp"
                        android:layout_weight="1"
                        android:background="@drawable/other" />


                </LinearLayout>
            </LinearLayout>
 <LinearLayout
     android:id="@+id/llListView"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginBottom="40dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp"
                android:layout_weight="2"
                android:background="@drawable/pepsiborder"
                android:orientation="vertical" >
     <TextView
        android:id="@+id/textView124"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textColor="#D3D9FF"
        android:text="Free Employees"
        android:textSize="30sp"
        android:gravity="left"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="10dp"
        android:textAppearance="?android:attr/textAppearanceLarge" />

     <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:layout_marginLeft="20dp"

            >

    <ListView
        android:id="@+id/listTic"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginRight="5dp"
        android:layout_marginTop="20dp"
        android:divider="@android:color/transparent"
        android:dividerHeight="10dp" >

    </ListView>
  </LinearLayout>

 </LinearLayout>
 <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginBottom="10dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp"
                android:layout_weight="2"
                android:id="@+id/noempLayout"
                android:background="@android:color/transparent"
                android:orientation="vertical" >
     <TextView 
         android:text="Please select free Employee to handle this problem!"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
         android:gravity="center"
         android:layout_marginTop="300dp"
         />
 </LinearLayout>
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginBottom="40dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp"
                android:layout_weight="2"
                android:id="@+id/empLayout"
                android:background="@drawable/pepsiborder"
                android:orientation="vertical" >

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginTop="10dp"
                    android:background="@drawable/blueborder"
                    android:orientation="horizontal"
                    android:padding="10dp" >

                    <ImageView
                        android:id="@+id/empIcon"
                        android:layout_width="60dp"
                        android:layout_height="60dp"
                        android:layout_gravity="center_vertical"
                        android:layout_weight="0.1" />

                    <LinearLayout
                        android:layout_width="fill_parent"
                        android:layout_height="fill_parent"
                        android:layout_weight="0.7"
                        android:gravity="center_vertical"
                        android:orientation="vertical" >

                        <TextView
                            android:id="@+id/empName"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_gravity="center_vertical"
                            android:layout_marginLeft="7dp"
                            android:gravity="center_vertical"
                            android:textColor="#D3D9FF"
                            android:textSize="17sp" />
                    </LinearLayout>
                </LinearLayout>

                <fragment
                    android:id="@+id/empMap"
                    android:name="com.google.android.gms.maps.MapFragment"
                    android:layout_width="match_parent"
                    android:layout_height="200dp"
                    android:layout_marginBottom="10dp"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginTop="10dp" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="10dp"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:orientation="vertical" >

                    <LinearLayout
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" >

                        <TextView
                            android:id="@+id/textView33"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="Current Address:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#D3D9FF" />

                        <TextView
                            android:id="@+id/empAddress"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text=""
                            android:textColor="#D3D9FF" />
                    </LinearLayout>



                <LinearLayout
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" >

                        <TextView
                            android:id="@+id/textView22"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="Details:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#D3D9FF" />

                        <TextView
                            android:id="@+id/empDetails"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text=""
                            android:textColor="#D3D9FF" />
                    </LinearLayout>
                    </LinearLayout>
                    <LinearLayout
                    android:id="@+id/llBtn2"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="bottom"
                    android:layout_marginTop="220dp"
                    android:layout_marginBottom="10dp"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:background="@drawable/blueborder"
                    android:orientation="horizontal"
                    android:padding="10dp" >

                    <Button
                        android:id="@+id/btnEmpDirections"
                        android:layout_width="30dp"
                        android:layout_height="30dp"
                        android:layout_weight="1"
                        android:layout_gravity="center"
                        android:background="@drawable/directions" />

                    <Button
                        android:id="@+id/btnEmpChat"
                        android:layout_width="30dp"
                        android:layout_height="30dp"
                        android:layout_weight="1"
                        android:layout_gravity="center"
                        android:background="@drawable/chat" />

                    <Button
                        android:id="@+id/btnEmpAssign"
                        android:layout_width="30dp"
                        android:layout_height="30dp"
                        android:layout_weight="1"
                        android:layout_gravity="center"
                        android:background="@drawable/assign" />


                </LinearLayout>
            </LinearLayout>
        </LinearLayout>
    </LinearLayout>

</LinearLayout>

ListView 项目布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="280dp"
    android:layout_height="90dp"
    android:orientation="horizontal"
    android:background="@drawable/border"
    android:layout_marginTop="10dp"
    android:padding="10dp"
     >

    <ImageView
        android:id="@+id/imgIcon"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:layout_weight="0.1"
        android:gravity="center_vertical" 

         />
    <LinearLayout 
      android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:layout_weight="0.7"
    android:gravity="center_vertical"

        >
    <TextView
        android:id="@+id/txtTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:textSize="17sp"
        android:textColor="#D3D9FF"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="7dp"
           />
     <TextView
        android:id="@+id/txtTitle1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:layout_gravity="center_vertical"
        android:textSize="13sp"
        android:textColor="#D3D9FF"
        android:layout_marginLeft="7dp"
           />
      </LinearLayout>
</LinearLayout>

边框.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
       android:shape="rectangle"
       >
   <stroke
        android:width="2dip"
        android:color="#8D8D8D" />
   <corners android:radius="10dip"/>
   <solid android:color="#464A4F" />
</shape>

非常感谢任何帮助。

Answer 1

如果你想让 View 闪烁:

public void blink(final View v) {
        v.setBackgroundColor(Color.DKGRAY);
        v.animate().setDuration(25).alpha(0).withEndAction(new Runnable() {
            @Override
            public void run() {
                v.setBackgroundResource(R.drawable.standard_key_normal);
                v.setAlpha(1);
            }
        });
    }

将您的 View 发送到此函数，用您想要的任何可绘制对象或颜色资源替换背景。如果你想要多次眨眼，把它放在一个 for 循环中。