强制关闭铃声选择器

Posted 2023-02-25

【中文标题】强制关闭铃声选择器

【英文标题】：Force Close on RingtonePicker

【发布时间】：2012-06-01 08:18:38

【问题描述】：

我的代码拒绝返回正确的 requestCode，所以我即兴创作了一点。它总是返回 -1。

    if(v.getId() == R.id.imageButton9)
    
        request = 888;
        Intent wpIntent = new Intent();
        wpIntent.setType("image/*");
        wpIntent.setAction(Intent.ACTION_GET_CONTENT);
        startActivityForResult(Intent.createChooser(wpIntent, "Select Picture"), SELECT_PICTURE);
    

    else if(v.getId() == R.id.imageButton10)
    
        String uri = null;
        request = 999;
        rtIntent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
        rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_RINGTONE);
        rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "Select Tone");
        if( uri != null)
        
            rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, Uri.parse(uri));
        
        else
        
            rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, (Uri)null);
               
        this.startActivityForResult(rtIntent, SELECT_TONE);
    

我在代码开头声明了两个变量：

    protected static final int SELECT_PICTURE = 888;
protected static final int SELECT_TONE = 999;

这是 onActivityResult：

    public void onActivityResult(int resultCode, int requestCode, Intent data)

    Toast.makeText(this, "onActivityResult: "+requestCode, Toast.LENGTH_SHORT).show();

    if(request == 888)
    
        Toast.makeText(this, "Picture Selection", Toast.LENGTH_SHORT).show();
        Uri selectedImage = Uri.parse(data.getDataString());
        wpPath = getPath(selectedImage);
        Toast.makeText(this, "WP Path: "+wpPath, Toast.LENGTH_SHORT).show();
        request = 0;
    

    else if(request == 999)
    
        Toast.makeText(this, "Tone Selection", Toast.LENGTH_SHORT).show();
        Log.i("RT Picked is: ", rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI).toString());
        Uri uri = rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);
        if (uri != null) 
        
            rtPath = uri.toString();
            Toast.makeText(this, "Ringtone Path: "+rtPath, Toast.LENGTH_SHORT).show();
            request = 0;
        
    

这总是强制关闭。它给出以下错误：

06-01 12:40:35.388: E/androidRuntime(7437): java.lang.RuntimeException: 传递结果失败 ResultInfowho=null, request=999, result=-1, data=Intent (有额外的) 到活动 com.asim.autobot/com.asim.autobot.profile: java.lang.NullPointerException

我被困住了。无法解决这个问题。

首先，为什么requestCode总是返回-1？ 其次，为什么应用强制关闭rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);？

编辑： 完整的Logcat http://i47.tinypic.com/1zm2gww.jpg

它指向的 Line 是 Log.i("RT Picked is: ", rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI).toString());

【问题讨论】：

使用 switch case 而不是用 if (if(v.getId() == R.id.imageButton9)) 来检查按钮

【参考方案1】：

当您获得-1 的结果代码时，它的工作方式为RESULT_OK = -1

检查以下行：

rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI).toString()

您有一个名为 Intent data 的参数，您应该使用它而不是 rtIntent 变量。您的 rtIntent 变量不会被修改，因此 getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI) 可能会返回 null。

【讨论】：

我爱你，男人，以一种非常非同性恋的方式。非常感谢您的帮助。我已将您的答案标记为已接受。请再次检查这个问题，因为我可能需要一些帮助来将返回的 Uri 设置为铃声。希望我可以在 *** 之外与您联系以寻求帮助：/

搜索也有效 :) 试试这个解决方案：***.com/questions/7671637/…

我看到了...看到我的代码还不错。只是我用错了意图哈哈

【参考方案2】：

试试这个代码，

    public void onClick(View v) 

        switch (v.getId()) 
        case R.id.imageButton9:
            request = 888;
            Intent wpIntent = new Intent();
            wpIntent.setType("image/*");
            wpIntent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(wpIntent, "Select Picture"), SELECT_PICTURE);
        case R.id.imageButton10:

            String uri = null;
            request = 999;
            rtIntent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
            rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_RINGTONE);
            rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "Select Tone");
            if( uri != null)
                
                    rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, Uri.parse(uri));
                
            else
                
                    rtIntent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, (Uri)null);
                       
                        this.startActivityForResult(rtIntent, SELECT_TONE);

            break;
        default:
            break;
        

    


       public void onActivityResult(int resultCode, int requestCode, Intent data)

    Toast.makeText(this, "onActivityResult: "+requestCode, Toast.LENGTH_SHORT).show();

    if(requestCode == SELECT_PICTURE)
    
        Toast.makeText(this, "Picture Selection", Toast.LENGTH_SHORT).show();
        Uri selectedImage = Uri.parse(data.getDataString());
        wpPath = getPath(selectedImage);
        Toast.makeText(this, "WP Path: "+wpPath, Toast.LENGTH_SHORT).show();
        request = 0;
    

    else if(requestCode == SELECT_TONE)
    
        Toast.makeText(this, "Tone Selection", Toast.LENGTH_SHORT).show();
        Log.i("RT Picked is: ", rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI).toString());
        Uri uri = rtIntent.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);
        if (uri != null) 
        
            rtPath = uri.toString();
            Toast.makeText(this, "Ringtone Path: "+rtPath, Toast.LENGTH_SHORT).show();
            request = 0;
        
    

【讨论】：

试过了。不工作。当我单击选择铃声时，activityresult 返回 -1，因此什么也没有。当我点击选择壁纸时，它首先会打开 RingtoneChooser（无论是使用 Android 系统还是 GoSMS）。当我按回时，它会打开 WallpaperChooser（图库、根资源管理器等）。