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自定义组件
package com.example.ceshi; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.util.AttributeSet; import android.view.View; import android.view.View.OnClickListener; import android.widget.Toast; public class MyViwe extends View implements OnClickListener{ private Paint _paintPaint; private int count; public MyViwe(Context context, AttributeSet attrs) { super(context, attrs); _paintPaint = new Paint(Paint.ANTI_ALIAS_FLAG); count = 0; setOnClickListener( this); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if(count<5){ _paintPaint.setColor(Color.BLUE); }else if(count<10){ _paintPaint.setColor(Color.GRAY); }else if(count<15){ _paintPaint.setColor(Color.YELLOW); }else{ _paintPaint.setColor(Color.CYAN); Toast.makeText(getContext(), "呵呵", 1).show(); } canvas.drawRect(0, 0, getWidth(), getHeight(), _paintPaint); _paintPaint.setTextSize(20); _paintPaint.setColor(Color.RED); String string = "你好!李浩"+ count; canvas.drawText(string, 0, getHeight()/2, _paintPaint); } @Override public void onClick(View v) { count++; //重新加载 invalidate(); } }
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