获取Android中createChooser方法的IntentSender对象

我想使用新版本的方法，它使用

IntentSender

文档仅说明我可以从

pendingent

实例中获取它。就我而言，

pendingent

似乎没有任何其他用途

---

是否有其他方法获取

意向书

或是否需要创建

挂起内容

？

选择器目标意向不是

挂起内容

。例如，在下面的代码段中，我正在声明

操作发送的意图，类型为
text/plain
，这是
intent.createChooser
的目标意图。然后我创建另一个
Intent
、接收器和一个处理程序
pendingett
，在用户从选择器中选择内容后，它将调用我的广播接收器的
onReceive

// Set up the broadcast receiver (preferably as a class member)
BroadcastReceiver receiver = new BroadcastReceiver() {
     @Override
     public void onReceive(Context context, Intent intent) {
         // Unregister self right away
         context.unregisterReceiver(this);

         // Component will hold the package info of the app the user chose
         ComponentName component = intent.getParcelableExtra<ComponentName>(Intent.EXTRA_CHOSEN_COMPONENT);
         // Do something with component
     }
}


Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
intent.setType("text/plain");

// Use custom action only for your app to receive the broadcast
final String shareAction = "com.yourdomain.share.SHARE_ACTION";
Intent receiver = new Intent(shareAction);
receiver.putExtra("test", "test");
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, receiver, PendingIntent.FLAG_UPDATE_CURRENT);
Intent chooser = Intent.createChooser(intent, "test", pendingIntent.getIntentSender());

// Before firing chooser activity, register the receiver with our custom action from above so that we receive the chosen app
context.registerReceiver(receiver, new IntentFilter(SHARE_ACTION));

startActivity(chooser);

在我的例子中，我得到了

ComponentInfo{org.telegrame.messenger/org.telegrame.ui.LaunchActivity}

对于
电报
和

ComponentInfo{com.google.android.apps.inbox/com.google.android.apps.bigtop.activities.ComposeMessageActivity}

对于
收件箱
另一种方法

    /**
     * Receiver to record the chosen component when sharing an Intent.
     */
    static class TargetChosenReceiver extends BroadcastReceiver {
        private static final String EXTRA_RECEIVER_TOKEN = "receiver_token";
        private static final Object LOCK = new Object();

        private static String sTargetChosenReceiveAction;
        private static TargetChosenReceiver sLastRegisteredReceiver;

        static boolean isSupported() {
            return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
        }

        @TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
        static void sendChooserIntent(Activity activity, Intent sharingIntent) {
            synchronized (LOCK) {
                if (sTargetChosenReceiveAction == null) {
                    sTargetChosenReceiveAction = activity.getPackageName() + "/"
                            + TargetChosenReceiver.class.getName() + "_ACTION";
                }
                Context context = activity.getApplicationContext();
                if (sLastRegisteredReceiver != null) {
                    context.unregisterReceiver(sLastRegisteredReceiver);
                }
                sLastRegisteredReceiver = new TargetChosenReceiver();
                context.registerReceiver(
                        sLastRegisteredReceiver, new IntentFilter(sTargetChosenReceiveAction));
            }

            Intent intent = new Intent(sTargetChosenReceiveAction);
            intent.setPackage(activity.getPackageName());
            intent.putExtra(EXTRA_RECEIVER_TOKEN, sLastRegisteredReceiver.hashCode());
            final PendingIntent callback = PendingIntent.getBroadcast(activity, 0, intent,
                    PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
            Intent chooserIntent = Intent.createChooser(sharingIntent,
                    activity.getString(R.string.share_link_chooser_title),
                    callback.getIntentSender());
            activity.startActivity(chooserIntent);
        }

        @Override
        public void onReceive(Context context, Intent intent) {
            synchronized (LOCK) {
                if (sLastRegisteredReceiver != this) return;
                context.getApplicationContext().unregisterReceiver(sLastRegisteredReceiver);
                sLastRegisteredReceiver = null;
            }
            if (!intent.hasExtra(EXTRA_RECEIVER_TOKEN)
                    || intent.getIntExtra(EXTRA_RECEIVER_TOKEN, 0) != this.hashCode()) {
                return;
            }

            ComponentName target = intent.getParcelableExtra(Intent.EXTRA_CHOSEN_COMPONENT);
            if (target != null) {
                setLastShareComponentName(context, target);
            }
        }
    }

您必须通过
pendingent
创建它。构造函数是公共的，但是用
@hide
@Blackbelt注释，但是我是否应该将
pendingent
作为目标
Intent
？别忘了将广播注册类添加到你的声明中有没有代码示例，我可以看看如何做？我的广播接收器没有接收到任何东西。我的广播接收器也不工作。你能演示一下你是如何连接广播接收器的吗？我正在我的活动中注册它，但不确定如何用于意图过滤器。当api级别低于221时，我们会做什么。此createChooser在API>=22 2上可用。这种方法对我不起作用。当chooser打开时立即调用onReceive，从chooser中选择某个应用时不调用onReceive。
    /**
     * Receiver to record the chosen component when sharing an Intent.
     */
    static class TargetChosenReceiver extends BroadcastReceiver {
        private static final String EXTRA_RECEIVER_TOKEN = "receiver_token";
        private static final Object LOCK = new Object();

        private static String sTargetChosenReceiveAction;
        private static TargetChosenReceiver sLastRegisteredReceiver;

        static boolean isSupported() {
            return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
        }

        @TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
        static void sendChooserIntent(Activity activity, Intent sharingIntent) {
            synchronized (LOCK) {
                if (sTargetChosenReceiveAction == null) {
                    sTargetChosenReceiveAction = activity.getPackageName() + "/"
                            + TargetChosenReceiver.class.getName() + "_ACTION";
                }
                Context context = activity.getApplicationContext();
                if (sLastRegisteredReceiver != null) {
                    context.unregisterReceiver(sLastRegisteredReceiver);
                }
                sLastRegisteredReceiver = new TargetChosenReceiver();
                context.registerReceiver(
                        sLastRegisteredReceiver, new IntentFilter(sTargetChosenReceiveAction));
            }

            Intent intent = new Intent(sTargetChosenReceiveAction);
            intent.setPackage(activity.getPackageName());
            intent.putExtra(EXTRA_RECEIVER_TOKEN, sLastRegisteredReceiver.hashCode());
            final PendingIntent callback = PendingIntent.getBroadcast(activity, 0, intent,
                    PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
            Intent chooserIntent = Intent.createChooser(sharingIntent,
                    activity.getString(R.string.share_link_chooser_title),
                    callback.getIntentSender());
            activity.startActivity(chooserIntent);
        }

        @Override
        public void onReceive(Context context, Intent intent) {
            synchronized (LOCK) {
                if (sLastRegisteredReceiver != this) return;
                context.getApplicationContext().unregisterReceiver(sLastRegisteredReceiver);
                sLastRegisteredReceiver = null;
            }
            if (!intent.hasExtra(EXTRA_RECEIVER_TOKEN)
                    || intent.getIntExtra(EXTRA_RECEIVER_TOKEN, 0) != this.hashCode()) {
                return;
            }

            ComponentName target = intent.getParcelableExtra(Intent.EXTRA_CHOSEN_COMPONENT);
            if (target != null) {
                setLastShareComponentName(context, target);
            }
        }
    }