使用BridgeKit启动Intent并使用Apportable执行回调

时间:2014-01-09 02:54:13

标签: apportable

我使用BridgeKit启动一个Intent,然后启动Android图库选择器,然后将所选图像作为字节返回。

Intent正确启动,我甚至可以选择图像并获得PNG表示,但是当我尝试使用回调将字节返回到Obj-C land时,我收到以下错误:

W/dalvikvm( 3417): No implementation found for native Lmystuff/android/AndroidImageSelector;.imagePicked:([B)V
I/System.out( 3417): java.lang.UnsatisfiedLinkError: Native method not found: mystuff.android.AndroidImageSelector.imagePicked:([B)V

意图以:

开头
AndroidIntent* intent = [ [AndroidIntent alloc] initWithContext: [ AndroidActivity currentActivity ]  class: [ AndroidImageSelector javaClass ] ];
[intent start];

AndroidImageSelector扩展了JavaObject,包括以下方法:

+ (NSString*) className
{
return @"mystuff.android.AndroidImageSelectorActivity";
}


+ (void) initializeJava
{
[ super initializeJava ];

[AndroidImageSelector registerCallback: @"imagePicked"
                     selector: @selector( imagePicked:)
                  returnValue: nil
                    arguments: [NSData className], nil ];
}

- (void) imagePicked: (NSData*) data
{
NSLog( @"IMAGE PICKED: %d", [ data length ] );
}

在Java端,AndroidImageSelectorActivity扩展了Activity并包含:

private native void imagePicked( byte[] response );


protected void onActivityResult( int requestCode, int resultCode, Intent imageReturnedIntent )
    {
    super.onActivityResult( requestCode, resultCode, imageReturnedIntent );

    try
        {
        switch ( requestCode )
            {
            case SELECT_PHOTO:
                if ( resultCode == RESULT_OK )
                    {
                    Uri selectedImage = imageReturnedIntent.getData();

                    Bitmap bitmap = decodeURI( selectedImage );

                    ByteArrayOutputStream out0 = new ByteArrayOutputStream();
                    bitmap.compress( Bitmap.CompressFormat.PNG, 100, out0 );
                    byte[] pngBytes = out0.toByteArray();

                    imagePicked( pngBytes );
                    }
            }


protected void onCreate( Bundle savedInstanceState )
    {
    super.onCreate( savedInstanceState );

    Intent photoPickerIntent = new Intent( Intent.ACTION_PICK );
    photoPickerIntent.setType( "image/*" );
    startActivityForResult( photoPickerIntent, SELECT_PHOTO );
    }

2 个答案:

答案 0 :(得分:1)

你需要在目标c方面实现imagePicked:基本上,你告诉java你将提供java方法的本机实现,但没有一个。

答案 1 :(得分:1)

此错误将在Apportable SDK的下一次更新中修复。对于那个很抱歉。