如何在自定義Android應用程序中實現“在whatsapp上共享”功能？

Question

我已經在該網站上閱讀了幾篇已經回答的文章，並通過WhatsApp使用了此發送消息

我可以從Chrome共享，但不能從應用程序共享。

我的代碼是

public void onClickWhatsApp(View view) {

 PackageManager pm=getPackageManager();
 try {

    Intent waIntent = new Intent(Intent.ACTION_SEND);
    waIntent.setType("text/plain");
    String text = "YOUR TEXT HERE";

    PackageInfo info=pm.getPackageInfo("com.whatsapp", PackageManager.GET_META_DATA);
    //Check if package exists or not. If not then code 
    //in catch block will be called
    waIntent.setPackage("com.whatsapp");

    waIntent.putExtra(Intent.EXTRA_TEXT, text);
    startActivity(Intent.createChooser(waIntent, "Share with"));

    } catch (NameNotFoundException e) {
      Toast.makeText(MainActivity.this, "WhatsApp not Installed", Toast.LENGTH_SHORT).show();       

    }  

 }

當我在我的Android應用程序whatsapp圖標中單擊共享按鈕時，它顯示未找到錯誤頁面，但是當從chrome共享相同內容時，它運行正常。

我的網址是http://way2enjoy.com/app/jokes.php

如果有人可以指導錯誤所在，我將非常感激

Answer 1

您可以使用適合我的代碼

void openWhatsappContact(String number) {
Uri uri = Uri.parse("smsto:" + number);
Intent i = new Intent(Intent.ACTION_SENDTO, uri);
i.setPackage("com.whatsapp");  
startActivity(Intent.createChooser(i, ""));}

享受您的代碼時間：）

Answer 2

您也可以使用此代碼

//method used to show IMs
private void show_custom_chooser(String value) {
    List<ResolveInfo> list = null;
    final Intent email = new Intent(Intent.ACTION_SEND);
    email.setData(Uri.parse("sms:"));
    email.putExtra(Intent.EXTRA_TEXT, "" + value);
    email.setType("text/plain"); // vnd.android-dir/mms-sms

    WindowManager.LayoutParams WMLP = dialogCustomChooser.getWindow()
            .getAttributes();
    WMLP.gravity = Gravity.CENTER;
    dialogCustomChooser.getWindow().setAttributes(WMLP);
    dialogCustomChooser.getWindow().setBackgroundDrawable(
            new ColorDrawable(android.graphics.Color.TRANSPARENT));
    dialogCustomChooser.setCanceledOnTouchOutside(true);
    dialogCustomChooser.setContentView(R.layout.about_dialog);
    dialogCustomChooser.setCancelable(true);
    ListView lvOfIms = (ListView) dialogCustomChooser
            .findViewById(R.id.listView1);
    PackageManager pm = getPackageManager();
    List<ResolveInfo> launchables = pm.queryIntentActivities(email, 0);
    // ////////////new
    list = new ArrayList<ResolveInfo>();
    for (int i = 0; i < launchables.size(); i++) {
        String string = launchables.get(i).toString();
        Log.d("heh", string);
//check only messangers
        if (string.contains("whatsapp")) {
            list.add(launchables.get(i));
        }
    }
    Collections.sort(list, new ResolveInfo.DisplayNameComparator(pm));
    int size = launchables.size();
    adapter = new AppAdapter(pm, list, MainActivity.this);
    lvOfIms.setAdapter(adapter);
    lvOfIms.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1,
                int position, long arg3) {
            ResolveInfo launchable = adapter.getItem(position);
            ActivityInfo activity = launchable.activityInfo;
            ComponentName name = new ComponentName(
                    activity.applicationInfo.packageName, activity.name);
            email.addCategory(Intent.CATEGORY_LAUNCHER);
            email.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                    | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
            email.setComponent(name);
            startActivity(email);
            dialogCustomChooser.dismiss();
        }
    });
    dialogCustomChooser.show();

}