摄像头意图问题，摄像头在没有请求的情况下启动

问题描述

| 我的相机意图有些问题。据我所知，当相机方向改变时，活动会重新开始。 Okej，我在使用下面的代码。

    @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    app = (myApplication)getApplication(); 

    if(savedInstanceState ==null ) getFullImage(null);
    else{
        String somevalue = savedInstanceState.getString(\"uri\");
        getFullImage(somevalue);
        }
}

private void getFullImage(String testValue)
{   if(testValue == null){
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    file = new File(Environment.getExternalStorageDirectory(),UUID.randomUUID()+ \".jpg\");
    outputFile = Uri.fromFile(file);
    intent.putExtra(MediaStore.EXTRA_OUTPUT,outputFile);
    startActivityForResult(intent,TAKE_PICTURE);

}else 
{   
    outputFile = null;
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    file = new File(testValue);
    outputFile = Uri.fromFile(file);
    intent.putExtra(MediaStore.EXTRA_OUTPUT,testValue);
    startActivityForResult(intent,TAKE_PICTURE);
    finishFromChild(getParent());
}

}

@Override
protected void onActivityResult(int requestCode,int resultCode,Intent data) {
    if(resultCode == RESULT_CANCELED) {
        Log.i(TAG,\"Back Button\"); 
        finishFromChild(this);
    } 
    else
     if(requestCode == TAKE_PICTURE && resultCode == RESULT_OK)
        {   
    //I\'m creating new file here (for this question is irelevant)
        } catch (IOException e) {

            e.printstacktrace();
        }

        Intent myIntent = new Intent(getBaseContext(),com.test.activities.SaveFileActivity.class);
        myIntent.putExtra(\"image\",newPath);
        startActivityFromChild(this,myIntent,SAVE_ITEM);  
        finishFromChild(this);
    }

}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putString(\"uri\",outputFile.getPath());
}

捕获图片后，我按“完成”按钮，然后转到SaveFileActivity。一切正常，直到我尝试从SaveFIleActivity转到其他活动，然后相机重新启动。我应该在哪里寻找问题？也许我应该杀死相机意图，但是什么时候？     

解决方法

        我怀疑您想使用更简单的

startActivity()

和

finish()

方法，而不是

startActivityFromChild()

和

finishFromChild()

。但是，我承认对于您实际使用的用途还是不太清楚。