分享 ShareUtils

 public class ShareUtils {
    /**   
     * 分享功能   
     * @param context 上下文   
     * @param activityTitle Activity的名字   
     * @param msgTitle 消息标题   
     * @param msgText 消息内容   
     * @param imgPath 图片路径，不分享图片则传null   
     */
    public static void shareMsg(Context context, String activityTitle, String msgTitle, String msgText, String imgPath) {
        Intent intent = new Intent(Intent.ACTION_SEND);
        if (imgPath == null || imgPath.equals("")) {
            intent.setType("text/plain"); // 纯文本    
        } else {
            File f = new File(imgPath);
            if (f != null && f.exists() && f.isFile()) {
                intent.setType("image/png");
                Uri u = Uri.fromFile(f);
                intent.putExtra(Intent.EXTRA_STREAM, u);
            }
        }
        intent.putExtra(Intent.EXTRA_SUBJECT, msgTitle);
        intent.putExtra(Intent.EXTRA_TEXT, msgText);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(Intent.createChooser(intent, activityTitle));
    }
}
分享图片
    public void shareImage(String imgPath){
        if(TextUtils.isEmpty(imgPath)){
            Toast.makeText(this,"Share failed",Toast.LENGTH_SHORT).show();
            finish();
            return;
        }
        Intent intent = new Intent(Intent.ACTION_SEND);
        File f = new File(imgPath);
        if (f != null && f.exists() && f.isFile()) {
             intent.setType("image/jpg");
             Uri u = Uri.fromFile(f);
             intent.putExtra(Intent.EXTRA_STREAM, u);
            try{
                boolean isCommonPackageName = CommonPackageName.isCommonPackageName(mImName,this);
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                if(isCommonPackageName){
                    intent.setPackage(mImName);
                    startActivity(intent);
                }else{
                    startActivity(Intent.createChooser(intent,"Share"));
                }
                if(TextUtils.isEmpty(mTag)){
                    AnalyseEvent.LogEvent(StickerImageCustomActivity.this,AnalyseEvent.KEYBOARD,AnalyseEvent.STICKER, mStickerFrom + AnalyseEvent.STICKERSHARE+AnalyseEvent.STICKERSHARENOTTEXT+mStickerEditState+mStickerRemoveState+mStickerDefaultText);
                }else{
                    AnalyseEvent.LogEvent(StickerImageCustomActivity.this,AnalyseEvent.KEYBOARD,AnalyseEvent.STICKER, mStickerFrom + AnalyseEvent.STICKERSHARE+AnalyseEvent.STICKERSHAREWithText + mStickerEditState+mStickerRemoveState+mStickerDefaultText);
                }
            }catch(Exception e){
                Toast.makeText(this,"Package not found!",Toast.LENGTH_SHORT).show();
            }
        }else{
            Toast.makeText(this,"Share failed",Toast.LENGTH_SHORT).show();
        }
    }

来自为知笔记(Wiz)