android_demo 之生成颜色

老师说循环出颜色数字然后显示出来

他说的什么一脸懵逼(=@__@=) 代码还在手上也还是懵逼 (づ｡◕‿‿◕｡)づ

不管了留个脚印在这以后想起来至少也知道

直接上代码吧说再多我也不懂啊(￢_￢)

/DynamicTable/res/layout/activity_main.xml

<LinearLayout 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"
    android:orientation="vertical" >    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >        <Button
            android:id="@+id/button1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="一键自动生成" />
    </LinearLayout>    <TableLayout
        android:id="@+id/table1"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    </TableLayout></LinearLayout>

activity_main.xml

/DynamicTable/src/com/example/dynamictable/MainActivity.java

package com.example.dynamictable;import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;public class MainActivity extends Activity {
    private final int WC = ViewGroup.LayoutParams.WRAP_CONTENT;
    private final int MP = ViewGroup.LayoutParams.MATCH_PARENT;
    private Button bt1;
    private TableLayout tableLayout;
    private int c;    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 获取控件Button
        bt1 = (Button) findViewById(R.id.button1);        // 给button按钮绑定单击事件
        bt1.setOnClickListener(new OnClickListener() {            public void onClick(View v) {
                // 获取控件tableLayout
                tableLayout = (TableLayout) findViewById(R.id.table1);
                // 清除表格所有行
                tableLayout.removeAllViews();
                // 全部列自动填充空白处
                tableLayout.setStretchAllColumns(true);
                // 生成X行，Y列的表格                int theLength = 64;
                for (int i = 0; i < theLength; i++) {
                    TableRow tableRow = new TableRow(MainActivity.this);
                    for (int j = 0; j < theLength; j++) {
                        int result = i * theLength + (j + 1) - 1;// 0~4095
                        int red = result / 256;
                        int green = (result - red * 256) / 16;
                        int blue = result - red * 256 - green * 16;                        // tv用于显示
                        TextView tv = new TextView(MainActivity.this);                        // tv.setText("-");
                        int rgb = Color.rgb(red * 16, green * 16, blue * 16);
                        tv.setBackgroundColor(rgb);                        // Color.rgb(red*16-1, green*16-1, blue*16-1)
                        // tv.setBackgroundResource(35434);
                        tableRow.addView(tv);
                        // System.out.println("i="+i+"; j="+j);
                        System.out.println(rgb + "=" + c++);
                    }
                    // 新建的TableRow添加到TableLayout
                    tableLayout.addView(tableRow, new TableLayout.LayoutParams(MP, WC, 1));
                }
            }
        });
    }
}