爲什麼我的ACTION_SEND可以完美地處理API 25+，但是會在以前的API上出現混亂？

Question

所以我有一個共享按鈕，將共享圖像和文本的主體。

在牛軋糖（API 25）和奧利奧（API 26）上，它的工作原理絕對完美。但是，當涉及到一些老版本時，它並不像預期的那樣工作。

棉花糖（API 23）：插入圖像很好，但沒有正文。 棒棒糖（API 22）：當您彈出共享按鈕並彈出錯誤時崩潰「不幸的是，消息已停止。」發生這種情況時，LOGCAT不會向我顯示任何錯誤。

這裏是我的分享按鈕代碼：

if (id == R.id.action_shareWine) { 
     Intent intentShare = new Intent(Intent.ACTION_SEND); 
     intentShare.putExtra(intentShare.EXTRA_STREAM, imageURI); 
     intentShare.setType("image/*"); 
     intentShare.putExtra(Intent.EXTRA_TEXT, "body of text goes here"); 
     if (intentShare.resolveActivity(getPackageManager()) != null) { 
      startActivity(intentShare); 
     } 
     return true; 
    } 

這裏是一幅畫給一個視覺的想法怎麼回事：

任何人有任何想法可能是怎麼回事這裏？

---

更新1

這裏是崩潰日誌的棒棒糖模擬器：

FATAL EXCEPTION: Mms-1 
Process: com.android.mms, PID: 7570 

java.lang.IllegalStateException: Couldn't read row 0, col 0 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. 

這我不知道爲什麼它正在發生，因爲光標加載圖像只在同一個活動中的ImageView中罰款。

Answer 1

致電addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)對ACTION_SENDIntent，允許第三方讀取由Uri標識的內容。

此外，由於圖像看上去是JPEG（基於文件擴展名），因此MIME類型爲image/jpeg，而不是image/*或image/png。

Answer 2

更多細節

在奧利奧和棉花糖版本可以正常使用這個

https://developer.android.com/reference/android/support/v4/content/FileProvider.html

源代碼

https://drive.google.com/open?id=1vfO43dMSt096CMp6nrOJNl3fJAf6MPwG

create xml folder inside providers_path.xml 

<?xml version="1.0" encoding="utf-8"?> 
<paths xmlns:android="http://schemas.android.com/apk/res/android"> 
    <external-path name="external_files" path="."/> 
</paths> 



<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.holostik.sharescreenshotexample"> 

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> 
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
    <uses-permission android:name="android.permission.FLASHLIGHT" /> 
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> 
    <uses-feature android:name="android.hardware.camera" /> 
    <uses-permission android:name="android.permission.CAMERA"></uses-permission> 


    <application 
     android:allowBackup="true" 
     android:icon="@mipmap/ic_launcher" 
     android:label="@string/app_name" 
     android:roundIcon="@mipmap/ic_launcher_round" 
     android:supportsRtl="true" 
     android:theme="@style/AppTheme"> 
     <activity android:name=".MainActivity"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

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


     <provider 
      android:name="android.support.v4.content.FileProvider" 
      android:authorities="com.holostik.sharescreenshotexample.fileprovider" 
      android:exported="false" 
      android:grantUriPermissions="true"> 
      <meta-data 
       android:name="android.support.FILE_PROVIDER_PATHS" 
       android:resource="@xml/provider_paths" /> 
     </provider> 


    </application> 

</manifest> 

package com.holostik.sharescreenshotexample; 

import android.Manifest; 
import android.content.Intent; 
import android.content.pm.PackageManager; 
import android.graphics.Bitmap; 
import android.net.Uri; 
import android.os.Build; 
import android.os.Bundle; 
import android.os.Environment; 
import android.support.v4.app.ActivityCompat; 
import android.support.v4.content.ContextCompat; 
import android.support.v4.content.FileProvider; 
import android.support.v7.app.AppCompatActivity; 
import android.util.Log; 
import android.view.View; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
import android.widget.Toast; 

import com.holostik.sharescreenshotexample.share.ScreenshotType; 
import com.holostik.sharescreenshotexample.share.ScreenshotUtils; 

import java.io.File; 
import java.io.FileOutputStream; 
import java.util.Random; 

public class MainActivity extends AppCompatActivity { 
    int n; 
    String photoPath; 

    LinearLayout rootContent; 
    ImageView iv_share; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     rootContent = (LinearLayout) findViewById(R.id.rootContent); 
     iv_share = (ImageView) findViewById(R.id.iv_share); 

     iv_share.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { 
        int permissionCheck = ContextCompat.checkSelfPermission(MainActivity.this, 
          Manifest.permission.CAMERA); 

        if (permissionCheck == PackageManager.PERMISSION_GRANTED) { 
         Log.e("MainActivity ", "P granted"); 

         takeScreenshot(ScreenshotType.FULL); 

        } else { 
         ActivityCompat.requestPermissions(MainActivity.this, 
           new String[]{Manifest.permission.CAMERA, 
             Manifest.permission.READ_EXTERNAL_STORAGE, 
             Manifest.permission.WRITE_EXTERNAL_STORAGE 
           }, 1); 
        } 
       } else { 
        Log.e("MainActivity", "Lower Than MarshMallow"); 
        takeScreenshot(ScreenshotType.FULL); 
       } 

      } 
     }); 

    } 


    /* Method which will take screenshot on Basis of Screenshot Type ENUM */ 
    private void takeScreenshot(ScreenshotType screenshotType) { 
     Bitmap b = null; 
     switch (screenshotType) { 
      case FULL: 
       b = ScreenshotUtils.getScreenShot(rootContent); 
       break; 
      case CUSTOM: 
       //If Screenshot type is CUSTOM 
       break; 
     } 

     //If bitmap is not null 
     if (b != null) { 
//   showScreenShotImage(b);//show bitmap over imageview 
      Log.e("keshav", "bitmap is -- > " + b); 

      SaveImage(b); 

      shareScreenshot(); 
     /*  File saveFile = ScreenshotUtils.getMainDirectoryName(MainActivity.this);//get the path to save screenshot 
      File file = ScreenshotUtils.store(b, "screenshot" + screenshotType + ".jpg", saveFile);//save the screenshot to selected path 
      shareScreenshot(file);//finally share screenshot 
      Log.e("file Path", String.valueOf(file)); 
*/ 

     } else 
      //If bitmap is null show toast message 
      Toast.makeText(MainActivity.this, R.string.screenshot_take_failed, Toast.LENGTH_SHORT).show(); 

    } 

    private void SaveImage(Bitmap finalBitmap) 
    { 
     String root = Environment.getExternalStorageDirectory().toString(); 
     File myDir = new File(root + "/saved_images"); 
     myDir.mkdirs(); 
     Random generator = new Random(); 
     n = 10000; 
     n = generator.nextInt(n); 
     String fname = "Image-" + n + ".jpg"; 
     File file = new File(myDir, fname); 
     if (file.exists()) file.delete(); 
     try { 
      FileOutputStream out = new FileOutputStream(file); 
      finalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out); 
      out.flush(); 
      out.close(); 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 


    /* TODO Show screenshot Bitmap */ 
// private void showScreenShotImage(Bitmap b) { 
//  imageView.setImageBitmap(b); 
// } 

    private void shareScreenshot() 
    { 
     photoPath = Environment.getExternalStorageDirectory() + "/saved_images" + "/Image-" + n + ".jpg"; 
     File F = new File(photoPath); 
     //Uri U = Uri.fromFile(F); 
     // Uri U = FileProvider.getUriForFile(getActivity(), getActivity().getApplicationContext().getPackageName() + ".my.package.name.provider", F); 

     // TODO your package name as well add .fileprovider 
     Uri U = FileProvider.getUriForFile(MainActivity.this.getApplicationContext(), "com.holostik.sharescreenshotexample.fileprovider", F); 
     Intent i = new Intent(Intent.ACTION_SEND); 
     i.setType("image/png"); 
     i.putExtra(Intent.EXTRA_STREAM, U); 
     startActivityForResult(Intent.createChooser(i, "Email:"), 1); 
    } 

    // TODO Share Screen SHOT End .............. 
}