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POcustom View not displayed well in android
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copied!<p>My custom view does not display entirely. Please see my screenshot:</p> <p><img src="https://i.stack.imgur.com/1xU1f.gif" alt="enter image description here"></p> <p>And the source code</p> <pre><code>package com.dots; import android.graphics.Color; import android.app.Activity; import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.os.Bundle; import android.view.View; import android.view.WindowManager; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; public class Dots1Activity extends Activity { private static final String TAG = "DotsActivity"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LinearLayout ll = new LinearLayout(this); ll.setOrientation(LinearLayout.VERTICAL); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); CustomDrawableView view1 = new CustomDrawableView(this, 50, 50, Constants.DOTS_RADIUS, Constants.DOTS_COLOR); CustomDrawableView view2 = new CustomDrawableView(this, 150, 150, Constants.DOTS_RADIUS, Constants.DOTS_COLOR); CustomDrawableView view3 = new CustomDrawableView(this, 300, 300, Constants.DOTS_RADIUS, Constants.DOTS_COLOR); ll.addView(view1, layoutParams); ll.addView(view2, layoutParams); ll.addView(view3, layoutParams); setContentView(ll); } } class CustomDrawableView extends View implements View.OnClickListener{ private Context context; private int x, y, radius, color; public CustomDrawableView(Context context, int x, int y, int radius, int color) { super(context); this.context = context; this.x = x; this.y =y; this.radius = radius; this.color = color; setOnClickListener(this); } protected void onDraw(Canvas canvas) { super.onDraw(canvas); Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); paint.setColor(color); canvas.drawCircle(x, y, radius, paint); } protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){ super.onMeasure(View.MeasureSpec.makeMeasureSpec(Constants.DOTS_RADIUS*2, View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(Constants.DOTS_RADIUS*2, View.MeasureSpec.EXACTLY)); } public void onClick(View v) { Toast.makeText(this.context, x+"-"+y+"-"+radius, Toast.LENGTH_SHORT).show(); } } public interface Constants { public static final int DOTS_RADIUS = 50; public static final int DOTS_COLOR = Color.GREEN; public static final int NUM_DOTS_ROWS = 5; public static final int NUM_DOTS_COLS = 5; public static final int WIDTH_BETWEEN_DOTS = 100; public static final int HEIGHT_BETWEEN_DOTS = 100; } </code></pre>

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