從活動創建位圖

我對Android有點新鮮。但是對iOS開發了很多。從活動創建位圖

我有一個父活動（Activity1），它必須在後臺加載並設置另一個活動（Activity2）。然後活性2準備好了，它必須調用，可以採取活性2，並返回一個位圖圖像的方法.. （我需要這個圖像分享至Facebook）

所以我的問題是：

1.How做聲母與顯示出它

2.How時候我的第二個活動，並返回它作爲一個位圖第二活動

public class Activity1 extends Activity implements OnClickListener, KKServerApiListener { 

    private Activity2 facebookshareActivity; 


    @Override 
    protected void onCreate(final Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_summary); 

     initView(); 


     /* Try 1 */ 
     facebookshareActivity = new KKFacebookShareActivity(route); 
     /* Tried with some different things here */ 

     /* Try 2 */ 
     Intent myIntent = new Intent(this, KKFacebookShareActivity.class); 
     myIntent.putExtra("number", route.id); 
     this.startActivity(myIntent); 
    } 

    public void makeDialogShare(final Context context, final String str) { 
     /*SETTING UP THE DIALOG */ 

     // ... // 

     // ... // 

     dialogButtonOk.setText("Share"); 
     dialogButtonOk.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(final View v) { 

       /* My try on getting my activity to a bitmap */ 
       View screenView = **** 
       screenView.setDrawingCacheEnabled(true); 
       Bitmap bitmap = Bitmap.createBitmap(screenView.getDrawingCache()); 
       screenView.setDrawingCacheEnabled(false); 

       /* Haven't worked on this part just something i pasted from facebook */ 
       SharePhoto photo = new SharePhoto.Builder() 
         .setBitmap(bitmap) 
         .build(); 
       SharePhotoContent content = new SharePhotoContent.Builder() 
         .addPhoto(photo) 
         .build(); 

       showDashboard(ctx, true); 
       //finish(); 
      } 
     }); 
     final Button dialogButtonCancel = (Button) dialog.findViewById(R.id.btnCancel); 
     dialogButtonCancel.setText("Continue"); 
     dialogButtonCancel.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(final View v) { 
       dialog.dismiss(); 
       //finish(); 
      } 
     }); 
     dialog.show(); 
    } 
}

來源

2017-06-20 user3690572

請問您可以鏈接您迄今爲止嘗試過的'Activity1'代碼嗎？ – Tony

所以基本上你想要加載的（因爲它是可見的）Activity2並採取ti的打印屏幕？ – leobelizquierdo

活動應該真正向用戶展示可與之互動的內容。如果你想創建一個圖像考慮在你當前的活動中使用畫布或類似物 –

如果有必要需要得到的，你有什麼Activity2映像喲你可以嘗試膨脹活動的佈局。然後用視圖創建一個位圖，然後將其返回。像這樣的事情在你的代碼：

/* My try on getting my activity to a bitmap */ 
     LayoutInflater inflater = LayoutInflater.from(getContext()); 
     View screenView = inflater.inflate(R.layout.your_activity_layout, null); 

     // add views and set rules (same as in the XML) to screenView 
     ... 

     screenView.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)); 
     screenView.layout(0, 0, screenView.getMeasuredWidth(), screenView.getMeasuredHeight()); 

     Bitmap bitmap = Bitmap.createBitmap(screenView.getMeasuredWidth(), screenView.getMeasuredHeight(), Bitmap.Config.ARGB_8888); 
     Canvas c = new Canvas(bitmap); 
     screenView.draw(c); 

     ... 

      /* Haven't worked on this part just something i pasted from facebook */ 
      SharePhoto photo = new SharePhoto.Builder() 
        .setBitmap(bitmap) 
        .build(); 
      SharePhotoContent content = new SharePhotoContent.Builder() 
        .addPhoto(photo) 
        .build(); 

      showDashboard(ctx, true);

R.layout.your_activity_layout是你要共享的佈局。

注意：由於您手動創建視圖，您可能需要添加一些視圖並以編程方式設置配置，以重新創建佈局（您查看的XML）。

來源

2017-06-20 16:21:05 leobelizquierdo

從活動創建位圖

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