[英]How can I fix errors (red texts) in XML which are preventing from showing preview or running the app on Android Studio?
[英]How can I tweet texts and images from an Android App in Kotlin?
我想從 Android 應用程序中發送文本和圖像。
我能夠在應用程序的屏幕上放置要推文的圖像,該應用程序可以通過按鈕打開推文表單。
作為參考,我檢查了以下前一個問題。
如何在android中使用ACTION_SEND一起共享圖像+文本?
問題是程序上設置的文本和圖像數據沒有出現在推特上。
它只顯示空白的推文表格。
如何將這些文本和圖像從 Android 應用程序移動到推文表單?
主活動.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()
}
*/
}
活動_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>
我嘗試使用share compat
而不是intent
,但它也不起作用。
除此之外, share compat
僅適用於在手機上下載了 Twitter 應用程序的用戶,因此我更喜歡使用intent
從 Android 應用程序中發送文本和圖像。
該圖像位於app/assets/sample.jpg
。
安卓工作室 3.5.3
Kotlin 插件 1.3.50
嘗試這個
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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