我有ImageView，我想分享它的图像。
以下是我的代码，
btshare.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
View content = findViewById(R.id.full_image_view);
content.setDrawingCacheEnabled(true);
Bitmap bitmap = content.getDrawingCache();
File root = Environment.getExternalStorageDirectory();
File cachePath = new File(root.getAbsolutePath() + "/DCIM/Camera/image.jpg");
try
{
root.createNewFile();
FileOutputStream ostream = new FileOutputStream(root);
bitmap.compress(CompressFormat.JPEG, 100, ostream);
ostream.close();
}
catch (Exception e)
{
e.printStackTrace();
}
Intent shareIntent = new Intent(Intent.ACTION_SEND);
Uri phototUri = Uri.parse("/DCIM/Camera/image.jpg");
shareIntent.setData(phototUri);
shareIntent.setType("image/*");
shareIntent.putExtra(Intent.EXTRA_STREAM, phototUri);
startActivity(Intent.createChooser(shareIntent, "Share Via"));
}
});
当我按下按钮时出现这些错误？
01-13 06:00:19.282: W/System.err(6199): java.io.FileNotFoundException: /storage/emulated/0: open failed: EISDIR (Is a directory)
01-13 06:00:19.286: W/System.err(6199): at libcore.io.IoBridge.open(IoBridge.java:409)
01-13 06:00:19.286: W/System.err(6199): at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
01-13 06:00:19.294: W/System.err(6199): at java.io.FileOutputStream.<init>(FileOutputStream.java:73)
01-13 06:00:19.294: W/System.err(6199): at com.safshari.mandegar.FullImageActivity$3.onClick(FullImageActivity.java:116)
01-13 06:00:19.294: W/System.err(6199): at android.view.View.performClick(View.java:4240)
01-13 06:00:19.294: W/System.err(6199): at android.view.View$PerformClick.run(View.java:17721)
01-13 06:00:19.298: W/System.err(6199): at android.os.Handler.handleCallback(Handler.java:730)
01-13 06:00:19.298: W/System.err(6199): at android.os.Handler.dispatchMessage(Handler.java:92)
01-13 06:00:19.298: W/System.err(6199): at android.os.Looper.loop(Looper.java:137)
01-13 06:00:19.302: W/System.err(6199): at android.app.ActivityThread.main(ActivityThread.java:5103)
01-13 06:00:19.302: W/System.err(6199): at java.lang.reflect.Method.invokeNative(Native Method)
01-13 06:00:19.302: W/System.err(6199): at java.lang.reflect.Method.invoke(Method.java:525)
01-13 06:00:19.302: W/System.err(6199): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
01-13 06:00:19.306: W/System.err(6199): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
01-13 06:00:19.306: W/System.err(6199): at dalvik.system.NativeStart.main(Native Method)
01-13 06:00:19.310: W/System.err(6199): Caused by: libcore.io.ErrnoException: open failed: EISDIR (Is a directory)
01-13 06:00:19.310: W/System.err(6199): at libcore.io.Posix.open(Native Method)
01-13 06:00:19.310: W/System.err(6199): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
01-13 06:00:19.310: W/System.err(6199): at libcore.io.IoBridge.open(IoBridge.java:393)
01-13 06:00:19.314: W/System.err(6199): ... 14 more
01-13 06:00:19.618: E/Genymotion(489): Could not open '/sys/class/power_supply/genymotion_fake_path/present'
我应该怎么做以及我的程序需要什么权限？我已经声明了以下权限，
<uses-permission android:name="android.permission.SET_WALLPAPER"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
答案 0 :(得分：6)
最终代码，以便任何人都可以用来保存和分享来自imageview的图片：
View content = findViewById(R.id.full_image_view);
content.setDrawingCacheEnabled(true);
Bitmap bitmap = content.getDrawingCache();
File root = Environment.getExternalStorageDirectory();
File cachePath = new File(root.getAbsolutePath() + "/DCIM/Camera/image.jpg");
try {
cachePath.createNewFile();
FileOutputStream ostream = new FileOutputStream(cachePath);
bitmap.compress(CompressFormat.JPEG, 100, ostream);
ostream.close();
} catch (Exception e) {
e.printStackTrace();
}
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(cachePath));
startActivity(Intent.createChooser(share,"Share via"));
}
快乐编码
答案 1 :(得分：3)
尝试使用以下代码分享您的图片：
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(root.getAbsolutePath() + "/DCIM/Camera/image.jpg"));
startActivity(Intent.createChooser(share,"Share via"));
将这些权限添加到AndroidMenifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
答案 2 :(得分：2)
您需要添加此权限
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
答案 3 :(得分：2)
尝试创建缓存以首先存储此图像然后共享它，因为您只能共享对其他应用程序公开的图像。您无法共享您应用程序专用的内容。
使用Context.getExternalCacheDir（）创建缓存，然后共享此缓存的内容
答案 4 :(得分：0)
Bundle intent = getIntent().getExtras();
cardView = (CardView) findViewById(R.id.card);
final String query = intent.getString("Query1");
db = new DataBaseHelper(Image.this);
Cursor c = db.getData(query);
if (c.getCount() != 0) {
c.moveToFirst();
do {
image = c.getString(5);
title=c.getString(3);
} while (c.moveToNext());
}
txt.setText(title);
img.setImageDrawable(getResources()
.getDrawable(getResources().getIdentifier(image, "drawable", getPackageName())));
答案 5 :(得分：0)
imageview.buildDrawingCache();
Bitmap image = mainimg.getDrawingCache();
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.putExtra(Intent.EXTRA_STREAM, getImageUri(this,getImageUri));
startActivity(Intent.createChooser(share,"Share via"));