[英]How to send all the bitmap images to sdcard in android
要通过彩信共享图像,代码正在运行。 我所做的是,将可绘制的图像转换为位图并保存在SD卡中。 并检索通过意图发送,这是一个图像,我很惊讶地将数组中的所有图像发送到SD卡。 在下面的代码中,我将图像从drawable放置在数组中,并将所有4张图像都转换为位图,如何将这4张图像发送到sdcard?
private void doSendIntent(String subject, String text) {
try {
Intent sendIntent = new Intent(android.content.Intent.ACTION_SEND);
sendIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);
sendIntent.putExtra(android.content.Intent.EXTRA_TEXT, text);
sendIntent.setType("image/png");
ArrayList<Integer> myImageList = new ArrayList<Integer>();
myImageList.add(R.drawable.gicon);
myImageList.add(R.drawable.ic_launcher);
myImageList.add(R.drawable.loadin);
myImageList.add(R.drawable.splash);
Bitmap bbicon;
bbicon = BitmapFactory.decodeResource(this.cordova.getActivity().getResources(),
R.drawable.gicon);
bbicon = BitmapFactory.decodeResource(this.cordova.getActivity().getResources(),
R.drawable.ic_launcher);
bbicon = BitmapFactory.decodeResource(this.cordova.getActivity().getResources(),
R.drawable.loadin);
bbicon = BitmapFactory.decodeResource(this.cordova.getActivity().getResources(),
R.drawable.splash);
String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
OutputStream outStream = null;
File f = new File(extStorageDirectory + "/Download/",
"gicon.png");
try {
outStream = new FileOutputStream(f);
bbicon.compress(Bitmap.CompressFormat.PNG, 100, outStream);
outStream.flush();
outStream.close();
System.out.println("ssssssssssssssssss");
} catch (Exception e) {
}
}
//RETRIEVING IMAGES FROM SDCARD
File fl = new File(Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/Download/", "gicon.png");
Uri uri = Uri.fromFile(fl);
sendIntent.putExtra(Intent.EXTRA_STREAM, uri);
this.cordova.startActivityForResult(this, sendIntent, 0);
}
catch(Exception e)
{
System.out.println(" no error here");
e.printStackTrace();
}
使用以下代码。
private void copyAssets() {
AssetManager assetManager = getAssets();
String[] files = null;
try {
files = assetManager.list("");
} catch (IOException e) {
Log.e("tag", e.getMessage());
}
for(String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
in = assetManager.open(filename);
out = new FileOutputStream("/sdcard/" + filename);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch(Exception e) {
Log.e("tag", e.getMessage());
}
}
}
private void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while((read = in.read(buffer)) != -1){
out.write(buffer, 0, read);
}
}
从清单文件获取以下权限
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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