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android 調用系統分享圖片及文字

系統分享文字 系統分享圖片 Bitmap Assets File

調用系統分享文字:
public static void shareText(Context context, String extraText) {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_SUBJECT, "連接分享");
intent.putExtra(Intent.EXTRA_TEXT, extraText);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(
Intent.createChooser(intent, "連接分享"));
}

    調用系統分享圖片,方法是:
    1、先讀取Assets裏面的圖片轉化成Bitmap ;
    2、再以文件File形式保存在本地;
    3、最後Uri連接本地該圖片進行分享。

    讀取Assets裏面的圖片轉化成Bitmap,代碼如下:

        private Bitmap getImageFromAssetsFile(String fileName)
{
    Bitmap image = null;
    AssetManager am = getResources().getAssets();
    try
    {
        InputStream is = am.open(fileName);
        image = BitmapFactory.decodeStream(is);
        is.close();
    }
    catch (IOException e)
    {
        e.printStackTrace();
    }

    return image;

}

Bitmap以文件File形式保存在本地,代碼如下:

public static File saveFile(Bitmap bm,String path, String fileName) throws IOException {
File dirFile = new File(path);
if(!dirFile.exists()){
dirFile.mkdir();
}
File myCaptureFile = new File(path , fileName);
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));

bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);
bos.flush();
bos.close();
return myCaptureFile;
}

    調用系統原生分享圖片代碼:
        public static void shareImage(Context context, Uri uri, String title) {
    Intent shareIntent = new Intent();
    shareIntent.setAction(Intent.ACTION_SEND);
    shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
    shareIntent.setType("image/jpeg");
    context.startActivity(Intent.createChooser(shareIntent, title));
}

    最後Uri連接本地該圖片進行分享:

    Bitmap bitmap = getImageFromAssetsFile("/assets/ewcode.png");
            try {
                File file = saveFile(bitmap, dir, "ewcode.png");
                Uri uri = Uri.fromFile(file);
                Shares.shareImage(EWcodeActivity.this,uri,"二維碼分享");
            } catch (IOException e) {
                e.printStackTrace();
            }

android 調用系統分享圖片及文字