Question

我使用此代码，但它无法正常工作。

$(function(){

var siteUrl='data.json'; //get the json file via ajax
   $.getJSON(siteUrl, function(json, textStatus) {

    var rootObj=json.images
    for(var i=0;i<rootObj.length;i++){

        var fullpath="http://placehold.it/350x150"
        addnewimage(fullpath);
    }
    });

});

function addnewimage(path){
    var img=new Image();
            img.onload = function(){
                $("#divData").append(img);
                alert("done load");**// this alert show after every image** load
             };
        img.src=path;
}
});

当我使用类型文本时，它可以正常工作但我想分享一个文字和一个图像并且共享意图在FaceBook中不起作用。

Answer 1

试用以下代码：

String fileName = "image-3116.jpg";//Name of an image
String externalStorageDirectory = Environment.getExternalStorageDirectory().toString();
String myDir = externalStorageDirectory + "/saved_images/"; // the file will be in saved_images
Uri uri = Uri.parse("file:///" + myDir + fileName);
Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
shareIntent.setType("text/html");
shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Test Mail");
shareIntent.putExtra(android.content.Intent.EXTRA_TEXT, "Launcher");
shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(shareIntent, "Share Deal"));

Answer 2

使用意图过滤器，我们无法在Facebook上共享文本+图像。如果要共享图像和文本，则必须创建图像+文本的位图。

在此处下载源代码（Share image and text on facebook using intent in android）

<强> MainActivity.java

package com.shareimage;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    EditText et_text;
    ImageView iv_image;
    TextView tv_share,tv_text;
    RelativeLayout rl_main;


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

        init();

    }

    private void init(){
        et_text = (EditText)findViewById(R.id.et_text);
        iv_image = (ImageView)findViewById(R.id.iv_image);
        tv_share = (TextView)findViewById(R.id.tv_share);
        rl_main = (RelativeLayout)findViewById(R.id.rl_main);
        tv_text= (TextView) findViewById(R.id.tv_text);

        File dir = new File("/sdcard/Testing/");
        try {
            if (dir.mkdir()) {
                System.out.println("Directory created");
            } else {
                System.out.println("Directory is not created");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        tv_share.setOnClickListener(this);

        et_text.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {
                tv_text.setText(et_text.getText().toString());

            }
        });


    }




    @Override
    public void onClick(View v) {

        switch (v.getId()){
            case R.id.tv_share:
                Bitmap bitmap1 = loadBitmapFromView(rl_main, rl_main.getWidth(), rl_main.getHeight());
                saveBitmap(bitmap1);
                String str_screenshot = "/sdcard/Testing/"+"testing" + ".jpg";

                fn_share(str_screenshot);
                break;
        }

    }

    public void saveBitmap(Bitmap bitmap) {
        File imagePath = new File("/sdcard/Testing/"+"testing" + ".jpg");
        FileOutputStream fos;
        try {
            fos = new FileOutputStream(imagePath);
            bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
            fos.flush();
            fos.close();

            Log.e("ImageSave", "Saveimage");
        } catch (FileNotFoundException e) {
            Log.e("GREC", e.getMessage(), e);
        } catch (IOException e) {
            Log.e("GREC", e.getMessage(), e);
        }
    }

    public static Bitmap loadBitmapFromView(View v, int width, int height) {
        Bitmap b = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(b);
        v.draw(c);

        return b;
    }

    public void fn_share(String path) {

        File file = new File("/mnt/" + path);

        Bitmap bmp = BitmapFactory.decodeFile(file.getAbsolutePath());
        Uri uri = Uri.fromFile(file);
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("image/*");
        intent.putExtra(Intent.EXTRA_STREAM, uri);

        startActivity(Intent.createChooser(intent, "Share Image"));


    }
}

Answer 3

您可以在Android Dev，

上阅读共享二进制内容

示例代码

Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, uriToImage);
shareIntent.setType("image/jpeg");
startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.send_to)));

Answer 4

你需要额外加入意图：

intent.putExtra("extra_name_1", ”some value”);
intent.putExtra("extra_name_2", 123);
intent.putExtra("extra_name_3”, false);

Answer 5

嗨首先，您需要在构建gradle中添加compile com.facebook.android:facebook-android-sdk:4.0.0，然后点击此链接。 https://developers.facebook.com/docs/facebook-login/v2.3

如何在android中使用Share Intent共享图像+文本

5 个答案: