如何在Kotlin上发布来自Android应用程序的文本和图像? [英] How can I tweet texts and images from an Android App in Kotlin?

问题描述

我想通过Android应用程序发布文字和图像.

I would like to tweet text and image from an Android App.

我能够在应用程序的屏幕上将图像放入推文中，并且该应用程序可以通过按钮打开推文表单.

I was able to put an image to tweet on a screen of app and the app can open tweet form via a button.

作为参考，我检查了以下先前的问题.

As a reference, I checked the following former question.

如何一起共享图像和文本在android中使用ACTION_SEND?

问题已设置，程序上的文本和图像数据没有出现在Twitter上.

Problem is set text and image data on the program are not appeared to the twitter.

它只显示空白的鸣叫形式.

It only show blank tweet form.

如何将这些文本和图像从Android应用程序移至推文表单?

How can I move these text and image from the Android app to the tweet form?

MainActivity.kt

MainActivity.kt

package com.example.tweets

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.Toast
import android.content.Intent
import android.net.Uri
import android.util.Log
import androidx.core.app.ShareCompat
import java.io.File
import android.R.attr.path
import android.graphics.BitmapFactory
import kotlinx.android.synthetic.main.activity_main.*
import androidx.core.app.ComponentActivity.ExtraData
import androidx.core.content.ContextCompat.getSystemService
import android.icu.lang.UCharacter.GraphemeClusterBreak.T
import java.io.IOException


class MainActivity : AppCompatActivity() {

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

        try {resources.assets.open("sample.jpg").use { istream ->
            val bitmap = BitmapFactory.decodeStream(istream)
            sample.setImageBitmap(bitmap)
        }
        } catch (e: IOException) {
            e.printStackTrace()
        }


        val intentTweetButton: Button = findViewById(R.id.intentTweetButton)
        intentTweetButton.setOnClickListener {
            shareTwitter()
        }

        /*

        val shareCompatButton: Button = findViewById(R.id.shareCompatButton)
        shareCompatButton.setOnClickListener {
            shareCompat()
        }
        */
    }

    fun shareTwitter() {
        val message = "shareTwitter intent tweet"
        val bmpUri = Uri.parse("file://$path")
        try {
            val sharingIntent = Intent(Intent.ACTION_SEND)
            sharingIntent.setClassName("com.twitter.android", "com.twitter.android.PostActivity")
            val imageUri = Uri.parse("sample.jpg")
            sharingIntent.putExtra(Intent.EXTRA_TEXT, "Hello")
            sharingIntent.putExtra(Intent.EXTRA_STREAM, imageUri)
            sharingIntent.type = "image/jpeg"
            sharingIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
            startActivity(sharingIntent)
        }
        catch (e: Exception) {
            Log.e("In Exception", "Comes here")
            val i = Intent()
            i.putExtra(Intent.EXTRA_TEXT, message)
            i.action = Intent.ACTION_VIEW
            i.data = Uri.parse("https://mobile.twitter.com/compose/tweet")
            startActivity(i)
        }

    }

    /*

    fun shareCompat() {
        val message = "shareCompat"
        val builder = ShareCompat.IntentBuilder.from(this)
        builder.setChooserTitle("Choose App")
        builder.setText(message)
        builder.setType("text/plain")
        builder.addStream(Uri.fromFile(File("sample.jpg")))
        builder.setType("image/jpg")
        builder.startChooser()
    }
     */
}

activity_main.xml

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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="match_parent"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/sample"
        android:scaleType="centerCrop"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:contentDescription="@string/img_description"
        tools:ignore="InvalidId" />

    <Button
        android:id="@+id/intentTweetButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="16dp"
        android:text="intent tweet"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <!--
    <Button
        android:id="@+id/shareCompatButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="16dp"
        android:text="ShareCompat"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/intentTweetButton" />
     -->

</androidx.constraintlayout.widget.ConstraintLayout>

我想做什么

我尝试使用share compat而不是intent，但是它也不起作用.

What I tried to do

I tried to use share compat instead of intent, but it didn't work neither.

除此之外，share compat仅适用于已在手机上下载了Twitter应用程序的用户，因此我更喜欢使用intent从Android应用程序发布文字和图像.

In addition to that, share compat is only available for user who have downloaded Twitter app on the phones, so I prefer to use intent to tweet text and image from the Android app.

图片位于app/assets/sample.jpg.

Android Studio 3.5.3

Android Studio 3.5.3

Kotlin插件1.3.50

Kotlin plugin 1.3.50

推荐答案

尝试一下

 private void shareTwitter(String message) {
    Intent tweetIntent = new Intent(Intent.ACTION_SEND);
    tweetIntent.putExtra(Intent.EXTRA_TEXT, "This is a Test.");
    tweetIntent.setType("text/plain");

    PackageManager packManager = getPackageManager();
    List<ResolveInfo> resolvedInfoList = packManager.queryIntentActivities(tweetIntent, PackageManager.MATCH_DEFAULT_ONLY);

    boolean resolved = false;
    for (ResolveInfo resolveInfo : resolvedInfoList) {
        if (resolveInfo.activityInfo.packageName.startsWith("com.twitter.android")) {
            tweetIntent.setClassName(
                    resolveInfo.activityInfo.packageName,
                    resolveInfo.activityInfo.name);
            resolved = true;
            break;
        }
    }
    if (resolved) {
        startActivity(tweetIntent);
    } else {
        Intent i = new Intent();
        i.putExtra(Intent.EXTRA_TEXT, message);
        i.setAction(Intent.ACTION_VIEW);
        i.setData(Uri.parse("https://twitter.com/intent/tweet?text=" + urlEncode(message)));
        startActivity(i);
        Toast.makeText(this, "Twitter app isn't found", Toast.LENGTH_LONG).show();
    }
}

private String urlEncode(String s) {
    try {
        return URLEncoder.encode(s, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        Log.wtf(TAG, "UTF-8 should always be supported", e);
        return "";
    }
}

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