從另一個佈局中獲取圖像並使用另一個佈局使用Android

Question

中的另一個活動我想通過單擊FirstActivity中的Capture按鈕捕獲後顯示圖像，並使用SecondActivity在activity_second（佈局）中顯示圖像。

FirstActivity

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_first); 

    Button take_photo = (Button) findViewById(R.id.btn_capture); 
    take_photo.setOnClickListener(new OnClickListener() { 

      public void onClick(View v) { 
       Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
       startActivity(i); 
      } 
     }); 
} 

佈局activity_first

> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" > 

    <Button 
     android:id="@+id/btn_capture" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentTop="true" 
     android:layout_marginLeft="21dp" 
     android:text="Capture" /> 

</RelativeLayout> 

SecondActivity

> public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_second); 

     ImageView view = (ImageView) findViewById(R.id.view_photo); 
    } 

activity_second

> <?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <ImageView 
     android:id="@+id/view_photo" 
     android:layout_width="260dp" 
     android:layout_height="374dp" /> 

</LinearLayout> 

Answer 1

使用startActivityForResult（）而不是startActivity（）

  @Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    // TODO Auto-generated method stub 
    super.onActivityResult(requestCode, resultCode, data); 
    Bitmap thumbnail = null; 
    if (requestCode == CAMERA_PIC_REQUEST) { 

     if (resultCode == RESULT_OK) { 

      thumbnail = (Bitmap) data.getExtras().get("data"); 

      Intent i = new Intent(this, NextActivity.class); 
      i.putExtra("name", thumbnail); 
      startActivity(i); 



     } 

    } 

} 

接下來的下一個活動嘗試使用此

 protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    //  intialize the image view 

Bitmap bitmap = getIntent().getExtras().getParcelable("data"); 
//set the image here. 
} 

希望這可以幫助你

Answer 2

獲取您存儲的圖像的路徑，並將其作爲附加信息傳遞給onActivityResult（）中的其他活動。 希望這可以幫助你。

Answer 3

public void onClick(View v) 
    { 
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);      
    mImageCaptureUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), 
             "image" + String.valueOf(System.currentTimeMillis()) + ".jpg")); 
    try 
     {      
      startActivityForResult(intent, PICK_FROM_CAMERA); 
     } 
    catch (ActivityNotFoundException e) 
     { 
      e.printStackTrace(); 
     } 
    } 

protected void onActivityResult(int requestCode, int resultCode, Intent data) 
    { 
     if (resultCode != RESULT_OK) return;  
     switch (requestCode) 
      { 
       case PICK_FROM_CAMERA: 
        Bitmap photo = null;   
        Bundle extras = data.getExtras(); 
        if (extras != null) 
        {    
         photo = extras.getParcelable("data"); 
        } 
        Intent i = new Intent(this,SecondActivity.class); 
        i.putExtra("image", photo); 
        startActivity(i); 
        break; 
    } 

在第二個活動：

bMap = getIntent().getParcelableExtra("image"); 
    mImageView.setImageBitmap(bMap); 

Answer 4

您可以使用下面的代碼來解決的問題：

您的第一項活動：

private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100; 

    @Override 
    public void onCreate(Bundle savedInstanceState) 
    { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_first); 
     Button take_photo = (Button) findViewById(R.id.btn_capture); 
     take_photo.setOnClickListener(new OnClickListener() 
     { 
      public void onClick(View v) 
      { 
       // create Intent to take a picture and return control to the calling application 
       Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
       // start the image capture Intent 
       startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE); 
      } 
     }); 
    } 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) 
    { 
     if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) 
     { 
      Bitmap imageData = null; 
      if (resultCode == RESULT_OK) 
      { 
       imageData = (Bitmap) data.getExtras().get("data"); 

       Intent i = new Intent(this, SecondActivity.class); 
       i.putExtra("name", imageData); 
       startActivity(i); 

      } 
      else if (resultCode == RESULT_CANCELED) 
      { 
       // User cancelled the image capture 
      } 
      else 
      { 
       // Image capture failed, advise user 
      } 
     } 
    } 

和第二活動：

public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_second); 
     Bitmap bitmap = getIntent().getExtras().getParcelable("name"); 
     ImageView view = (ImageView) findViewById(R.id.view_photo); 
     view.setImageBitmap(bitmap); 
    } 

和Manifest.xml文件使用權限：

<uses-feature android:name="android.hardware.camera" /> 

我希望這將正常工作