使用uri schme和返回值的Android应用到应用

Question

在Android中，我试图通过虚拟应用程序的uri方案从我的应用程序中调用另一个虚拟应用程序。

在虚拟应用程序中，当用户点击一个按钮时，我想用一个返回值返回到我的应用程序。

<intent-filter>
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />

    <data
                android:scheme="myapp"
                android:host="my-poc-application.com"
                android:pathPrefix="/id" />
</intent-filter>

String scheme = "myapp";
String host = "my-poc-application.com";
String id = "8";
Uri uri = Uri.parse(scheme + "://" + host + "/" + id);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);

// Verify it resolves
PackageManager packageManager = getPackageManager();
List activities = packageManager.queryIntentActivities(intent, 0);
boolean isIntentSafe = activities.size() > 0;

// Start an activity if it's safe
if (isIntentSafe) {
   startActivityForResult(intent, 1);
}

但没有调用虚拟应用程序。

Answer 1

以下是我的尝试：

在目标应用程序的活动中注册意图过滤器：

<activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <data
                    android:scheme="target-app"
                    android:host="target-app.com" />
            </intent-filter>

        </activity>

注意：您不需要pathPrefix

btnGoBack.setOnClickListener{
            val resultIntent = Intent()
            resultIntent.putExtra("Result", "I am the result from target app")
            setResult(1000, resultIntent)
            finish()
        }

//Read the id you sent while calling this app
            val uri = intent.data
            Toast.makeText(this, uri?.path.toString(), Toast.LENGTH_SHORT).show()

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        btnOpen.setOnClickListener{
            val scheme = "target-app"
            val host = "target-app.com"
            val id = "8"
            val uri = Uri.parse("$scheme://$host/$id")
            val intent = Intent(Intent.ACTION_VIEW, uri)

            // Verify it resolves
            val activities = packageManager.queryIntentActivities(intent, 0)
            val isIntentSafe = activities.size > 0

            // Start an activity if it's safe
            if (isIntentSafe) {
                startActivityForResult(intent, 1)
            }
        }
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (resultCode == 1000){
            Toast.makeText(this, data?.getStringExtra("Result"), Toast.LENGTH_SHORT).show()
        }
    }

该活动有一个名为BTnOpen的按钮。

在OnActivityResult中，我们获得从目标应用程序发送的结果。

这段代码是kotlin的，将其转换为java应该是微不足道的。

普里亚布拉塔