android - Custom onDraw() method not called -

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  & lt; linearLayout एंड्रॉइड: id = "@ + id / svLL" एंड्रॉइड: अभिविन्यास = "क्षैतिज" एंड्रॉइड: Layout_width = "fill_parent" एंड्रॉइड: layout_height = "fill_parent" & gt; & Lt; ScrollView एंड्रॉइड: एंड्रॉइड: एंड्रॉइड: layout_width = "wrap_content" एंड्रॉइड: layout_height = "wrap_content" xmlns: एंड्रॉइड = "http://schemas.android.com/apk/res/android" & gt; ; & Lt;! - & lt; TextView एंड्रॉइड: layout_width = "match_parent" एंड्रॉइड: layout_height = "wrap_content" android: text = "@ string / scrollbar_2_text" / & gt; - & gt; & Lt; com.mypackage.MyDrawableView एंड्रॉइड: layout_width = "fill_parent" एंड्रॉइड: layout_height = "wrap_content" / & gt; & Lt; / scrollview & gt; & Lt; / LinearLayout & gt;  
  सार्वजनिक वर्ग MyDrawableView विस्तार देता है देखें {संदर्भ इस संदर्भ <; सार्वजनिक MyDrawableView (संदर्भ संदर्भ, AttributeSet attr) {सुपर (संदर्भ); ThisContext = संदर्भ; } @ ओवरराइड संरक्षित शून्य पर डरा (कैनवास कैनवास) {सुपर। डॉन (कैनवास); अंतिम पेंट पेंट = नया पेंट (); paint.setColor (Color.BLUE); paint.setTextSize (12); Canvas.drawText ("ब्लाह ब्लाह", 0, 100, पेंट); }}  
  सार्वजनिक वर्ग MyActivity गतिविधि को बढ़ाता है {// आपके सदस्य चर घोषणा यहाँ // जब गतिविधि पहली बार बनाई गई है कहा जाता है @ क्रिएट पर सार्वजनिक शून्य (बंडल सहेजे गए इन्स्टेंसस्टेट) को ओवरराइड करें {// आपका कोड यहां सुपर। परम (सहेजे गए इन्स्टेंसस्टेट); setContentView (R.layout.xmllayout); LinearLayout svll = (LinearLayout) findViewById (R.id.svlL); Svll.setLayoutParams (नई LinearLayout.LayoutParams (300, 300)); }}

मैं ब्रेकपॉइंट लगा रहा हूं, लेकिन ब्रेकपॉइंट कभी भी onDraw () विधि के अंदर नहीं मारा जाता है, क्या गलत है?

MyDrawableView कन्स्ट्रक्टर में setWillNotDraw (गलत) जोड़ें मूल उत्तर है।


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