Question

我的操作栏中有一个播放按钮，我希望当我点击播放按钮然后连接到我的直播流所需的等待时间它将显示循环进度条以及何时连接它们流将出现暂停和播放按钮。如下图所示

这是我使用的代码

action_bar_progress.xml
    <?xml version="1.0" encoding="utf-8"?>
   <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    style="@android:style/Widget.ActionButton">
<ProgressBar
    android:id="@+id/actionProgressBar"
    android:layout_width="32dp"
    android:layout_height="32dp"
    android:visibility="visible"
    android:layout_gravity="center" />
</FrameLayout>

Menu.xml类

enter code here
         <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto">
   <item
    android:title="play"
    android:icon="@drawable/ic_play_arrow_black_24dp"
    android:id="@+id/actionPlay"
    app:showAsAction="always"/>
<item
    android:title="pause"
    android:icon="@drawable/ic_pause_black_24dp"
    android:id="@+id/actionPause"
    app:showAsAction="always"
    android:visible="false"/>
<item
    android:title="stop"
    android:icon="@drawable/ic_stop_black_24dp"
    android:id="@+id/actionStop"
    app:showAsAction="always"
    android:visible="false"/>
<item
    android:id="@+id/action_working"
    android:actionLayout="@layout/action_bar_progress"
    app:showAsAction="always"
    android:title="@string/loadingActionBar"
    />

MainActivity.java

     @Override
public boolean onPrepareOptionsMenu(Menu menu) {
    mnuPlay = menu.findItem(R.id.actionPlay);
    mnuStop=menu.findItem(R.id.actionStop);
    mnuPause=menu.findItem(R.id.actionPause);
    mnuProgressBar = menu.findItem(R.id.action_working);


    if(bConnected){
        if(mediaPlayer.isPlaying()){
            mnuPlay.setVisible(false);
            mnuPause.setVisible(true);
            mnuStop.setVisible(true);
            mnuProgressBar.setVisible(false);
        }else {
            if (bShouldPlay) {
                mnuPlay.setVisible(false);
                mnuPause.setVisible(false);
                mnuStop.setVisible(false);
                mnuProgressBar.setVisible(true);
            }else{
                mnuPlay.setVisible(true);
                mnuPause.setVisible(false);
                mnuStop.setVisible(false);
                mnuProgressBar.setVisible(false);
            }
        }
    }else{
        mnuPlay.setVisible(true);
        mnuPause.setVisible(false);
        mnuStop.setVisible(false);
        mnuProgressBar.setVisible(false);
    }

    return super.onPrepareOptionsMenu(menu);
}
//Menu  Item  function start
@Override
public boolean onOptionsItemSelected(MenuItem item) {


    switch (item.getItemId())
    {
        case R.id.actionPlay:
            if (bConnected)
            {
                mediaPlayer.start();
                mnuPlay.setVisible(false);
                mnuProgressBar.setVisible(false);
                mnuPause.setVisible(true);
                mnuStop.setVisible(true);
                Toast.makeText(getBaseContext(), "Playing...", Toast.LENGTH_LONG).show();

            }
            else
            {
                mnuPlay.setVisible(false);
                mnuPause.setVisible(false);
                mnuStop.setVisible(false);
                bShouldPlay = true;
                getMedia();
                mnuProgressBar.setVisible(true);
                //Toast.makeText(getBaseContext(), "Still connecting...", Toast.LENGTH_LONG).show();
            }

            break;

        case R.id.actionPause:
            //bPaused=true;
            if (mediaPlayer.isPlaying())
            {
                mediaPlayer.pause();
                bPaused=true;
                mnuPause.setVisible(false);
                mnuPlay.setVisible(true);
                mnuStop.setVisible(true);
                mnuProgressBar.setVisible(false);
                Toast.makeText(MainActivity.this, "Paused!", Toast.LENGTH_SHORT).show();
            }
            break;

        case R.id.actionStop:
            if (mediaPlayer.isPlaying() || bPaused)
            {
                Toast.makeText(this, "Stopping...", Toast.LENGTH_LONG).show();

                mediaPlayer.stop();
                mediaPlayer.release();
                bConnected = false;
                bPaused=false;
                bShouldPlay = false;
                mnuPlay.setVisible(true);
                mnuPause.setVisible(false);
                mnuStop.setVisible(false);
                mnuProgressBar.setVisible(false);

                Toast.makeText(this, "Stopped!", Toast.LENGTH_LONG).show();

            }
            break;
        default:
            break;
    }
    return super.onOptionsItemSelected(item);
}

当我点击播放按钮然后它显示我在标题中写的文本..我需要循环进度条而不是那个文本以及如何设置错误消息的另一件事。例如，如果流不可用意味着离线，然后如何连接几分钟后将向用户显示消息流不可用..

Answer 1

您可以使用工具栏中的进度条来执行此操作。工具栏只是一个ViewGroup：

 <android.support.v7.widget.Toolbar
    android:id="@+id/toolbar_main"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="#2196F3"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

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

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight=".70"
            android:gravity="center"
            android:orientation="horizontal"
            android:text="left">

            <TextView
                android:id="@+id/toolbar_title"
                style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:text="Tital"
                android:textColor="@color/white"
                android:textSize="20dp"
                android:textStyle="bold" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight=".30"
            android:text="right">

            <ProgressBar
                android:id="@+id/actionProgressBar"
                android:layout_width="32dp"
                android:layout_height="32dp"
                android:layout_gravity="center"
                android:visibility="visible" />
        </LinearLayout>
    </LinearLayout>
</android.support.v7.widget.Toolbar>

Answer 2

更改

android:actionLayout="@layout/action_bar_progress"

到

app:actionLayout="@layout/action_bar_progress"

如何在操作栏中放置循环进度条？

2 个答案: