如何在 android 中制作分享按钮 - Kotlin
How to make a share button in android - Kotlin
我怎样才能制作一个有效的分享按钮，以便分享某些引语
（分享的是来自 textview 的文字）
我在网上找到了以下代码：
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
share_text_1_btn.setOnClickListener {
val t1 = share_text_1_t.text.toString()
val shareIntent = Intent()
shareIntent.action = Intent.ACTION_SEND
shareIntent.type="text/plain"
shareIntent.putExtra(Intent.EXTRA_TEXT, t1)
startActivity(Intent.createChooser(shareIntent,"Share via"))
}
}
但是当我激活 setOnClickListener 时，当我打开片段时应用程序崩溃了
没有什么是红色的
这是我所有的进口商品：
import android.content.ClipData
import android.content.ClipboardManager
import android.content.Intent
import android.os.Bundle
import com.google.android.material.floatingactionbutton.FloatingActionButton
import com.google.android.material.snackbar.Snackbar
import androidx.navigation.findNavController
import androidx.navigation.ui.AppBarConfiguration
import androidx.navigation.ui.navigateUp
import androidx.navigation.ui.setupActionBarWithNavController
import androidx.navigation.ui.setupWithNavController
import androidx.drawerlayout.widget.DrawerLayout
import com.google.android.material.navigation.NavigationView
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import android.view.Menu
import android.widget.Toast
import androidx.fragment.app.Fragment
import kotlinx.android.synthetic.main.fragment_blogs.*
import kotlinx.android.synthetic.main.fragment_share.*
import com.example.blogesther.ui.home.HomeFragment
import kotlinx.android.synthetic.main.activity_main.*
import java.util.*
这是我的 xml 代码：
<?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">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/share_title_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/share_title"
android:textSize="50sp"
android:textFontWeight="100"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/share_text_1_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/share_text_1"
app:layout_constraintEnd_toStartOf="@+id/share_text_1_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_title_text" />
<TextView
android:id="@+id/share_text_2_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_2"
app:layout_constraintEnd_toStartOf="@+id/share_text_2_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_1_t" />
<TextView
android:id="@+id/share_text_3_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_3"
app:layout_constraintEnd_toStartOf="@+id/share_text_3_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_2_t" />
<TextView
android:id="@+id/share_text_4_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_4"
app:layout_constraintEnd_toStartOf="@+id/share_text_4_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_3_t" />
<TextView
android:id="@+id/share_text_5_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_5"
app:layout_constraintEnd_toStartOf="@+id/share_text_5_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_4_t" />
<TextView
android:id="@+id/share_text_6_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_6"
app:layout_constraintEnd_toStartOf="@+id/share_text_6_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_5_t" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_1_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_1_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_1_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_2_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_2_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_2_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_3_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_3_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_3_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_4_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_4_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_4_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_5_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_5_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_5_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_6_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_6_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_6_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>
这是logcat:
2020-03-17 12:29:03.153 28028-28028/com.example.blogesther E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.blogesther, PID: 28028
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.blogesther/com.example.blogesther.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.material.floatingactionbutton.FloatingActionButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3121)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3264)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7063)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.material.floatingactionbutton.FloatingActionButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at com.example.blogesther.MainActivity.onCreate(MainActivity.kt:50)
at android.app.Activity.performCreate(Activity.java:7327)
at android.app.Activity.performCreate(Activity.java:7318)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1275)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3101)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3264)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7063)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
private lateinit var share_text_1_btn : FloatingActionButton
share_text_1_btn = findViewById(R.id.share_text_1_btn)
share_text_1_btn.setOnClickListener { view ->
val sendIntent = Intent()
sendIntent.action = Intent.ACTION_SEND
sendIntent.putExtra(
Intent.EXTRA_TEXT,
"Hey Check out this Great app:"
)
sendIntent.type = "text/plain"
startActivity(sendIntent)
}
试试这个：
val share_text_1_btn = findViewById<com.google.android.material.floatingactionbutton.FloatingActionButton>(R.id.share_text_1_btn)
share_text_1_btn.setOnClickListener {
val intent= Intent()
intent.action=Intent.ACTION_SEND
intent.putExtra(Intent.EXTRA_TEXT,"Hey Check out this Great app:")
intent.type="text/plain"
startActivity(Intent.createChooser(intent,"Share To:"))
}
Docs About Implicit intent with more than one app to recieve
您也可以使用 Xml onClick 属性来实现，只需将其添加到按钮并在错误下拉列表中自动生成函数 (alt+enter)
android:onClick="shareIntent"
然后只需将点击监听器的内容复制到生成的函数中即可。
快速简便的解决方案避免了您可能遇到的大多数空指针异常。
我怎样才能制作一个有效的分享按钮，以便分享某些引语
（分享的是来自 textview 的文字）
我在网上找到了以下代码：
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
share_text_1_btn.setOnClickListener {
val t1 = share_text_1_t.text.toString()
val shareIntent = Intent()
shareIntent.action = Intent.ACTION_SEND
shareIntent.type="text/plain"
shareIntent.putExtra(Intent.EXTRA_TEXT, t1)
startActivity(Intent.createChooser(shareIntent,"Share via"))
}
}
但是当我激活 setOnClickListener 时，当我打开片段时应用程序崩溃了
没有什么是红色的
这是我所有的进口商品：
import android.content.ClipData
import android.content.ClipboardManager
import android.content.Intent
import android.os.Bundle
import com.google.android.material.floatingactionbutton.FloatingActionButton
import com.google.android.material.snackbar.Snackbar
import androidx.navigation.findNavController
import androidx.navigation.ui.AppBarConfiguration
import androidx.navigation.ui.navigateUp
import androidx.navigation.ui.setupActionBarWithNavController
import androidx.navigation.ui.setupWithNavController
import androidx.drawerlayout.widget.DrawerLayout
import com.google.android.material.navigation.NavigationView
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import android.view.Menu
import android.widget.Toast
import androidx.fragment.app.Fragment
import kotlinx.android.synthetic.main.fragment_blogs.*
import kotlinx.android.synthetic.main.fragment_share.*
import com.example.blogesther.ui.home.HomeFragment
import kotlinx.android.synthetic.main.activity_main.*
import java.util.*
这是我的 xml 代码：
<?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">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/share_title_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/share_title"
android:textSize="50sp"
android:textFontWeight="100"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/share_text_1_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/share_text_1"
app:layout_constraintEnd_toStartOf="@+id/share_text_1_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_title_text" />
<TextView
android:id="@+id/share_text_2_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_2"
app:layout_constraintEnd_toStartOf="@+id/share_text_2_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_1_t" />
<TextView
android:id="@+id/share_text_3_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_3"
app:layout_constraintEnd_toStartOf="@+id/share_text_3_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_2_t" />
<TextView
android:id="@+id/share_text_4_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_4"
app:layout_constraintEnd_toStartOf="@+id/share_text_4_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_3_t" />
<TextView
android:id="@+id/share_text_5_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_5"
app:layout_constraintEnd_toStartOf="@+id/share_text_5_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_4_t" />
<TextView
android:id="@+id/share_text_6_t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:text="@string/share_text_6"
app:layout_constraintEnd_toStartOf="@+id/share_text_6_btn"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/share_text_5_t" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_1_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_1_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_1_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_2_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_2_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_2_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_3_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_3_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_3_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_4_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_4_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_4_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_5_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_5_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_5_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/share_text_6_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="50dp"
android:clickable="true"
android:scaleX="1"
android:scaleY="1"
app:layout_constraintBottom_toBottomOf="@+id/share_text_6_t"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/share_text_6_t"
app:srcCompat="@drawable/ic_share_white_50dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>
这是logcat:
2020-03-17 12:29:03.153 28028-28028/com.example.blogesther E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.blogesther, PID: 28028
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.blogesther/com.example.blogesther.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.material.floatingactionbutton.FloatingActionButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3121)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3264)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7063)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.material.floatingactionbutton.FloatingActionButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at com.example.blogesther.MainActivity.onCreate(MainActivity.kt:50)
at android.app.Activity.performCreate(Activity.java:7327)
at android.app.Activity.performCreate(Activity.java:7318)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1275)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3101)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3264)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7063)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
private lateinit var share_text_1_btn : FloatingActionButton
share_text_1_btn = findViewById(R.id.share_text_1_btn)
share_text_1_btn.setOnClickListener { view ->
val sendIntent = Intent()
sendIntent.action = Intent.ACTION_SEND
sendIntent.putExtra(
Intent.EXTRA_TEXT,
"Hey Check out this Great app:"
)
sendIntent.type = "text/plain"
startActivity(sendIntent)
}
试试这个：
val share_text_1_btn = findViewById<com.google.android.material.floatingactionbutton.FloatingActionButton>(R.id.share_text_1_btn)
share_text_1_btn.setOnClickListener {
val intent= Intent()
intent.action=Intent.ACTION_SEND
intent.putExtra(Intent.EXTRA_TEXT,"Hey Check out this Great app:")
intent.type="text/plain"
startActivity(Intent.createChooser(intent,"Share To:"))
}
Docs About Implicit intent with more than one app to recieve
您也可以使用 Xml onClick 属性来实现，只需将其添加到按钮并在错误下拉列表中自动生成函数 (alt+enter)
android:onClick="shareIntent"
然后只需将点击监听器的内容复制到生成的函数中即可。 快速简便的解决方案避免了您可能遇到的大多数空指针异常。