Question

我有超过30个可点击的图像按钮视图，我想以编程方式创建，而不是使用多个xml文件。有人可以解释我怎么能这样做吗？对于每个图像按钮，我需要：

能够以编程方式命名和设置每个视图的ID，如R.drawable.button01，R.drawable.button02等，因为稍后我需要使用findViewById（）返回它们。
每个图像按钮都是可点击的，每个按钮都有一个按下按钮的按钮，所以我需要弄清楚如何动态地为每个按钮分配按钮按动作，而不是为每个按钮使用xml资源文件。

提前致谢。

Answer 1

将任何布局作为根，如线性或相对初始化..

LinearLayout layout = new LinearLayout(context);
layout.setOrientation(LinearLayout.HORIZONTAL);
ImageButton button =new ImageButton(context);
layout.addView(layout);
setContentView(layout);

我希望这能解决你的问题。

Answer 2

视图具有可用于设置ID的函数setId()。您可以使用setImageResource()作为图片

Answer 3

对于我的项目，我正在为学校创建一个骰子游戏（Yahtzee）。对于我的按钮，我在XML中添加了它们

<ImageButton
        android:id = "@+id/dice1"
        android:src = "@drawable/red_1_dice"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:layout_marginTop = "60px"
        android:layout_marginLeft = "30px" />

    <ImageButton
        android:id = "@+id/dice2"
        android:src = "@drawable/red_2_dice"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:layout_marginLeft = "250px" 
        android:layout_marginTop = "-130px"/>

    <ImageButton
        android:id = "@+id/dice3"
        android:src = "@drawable/red_3_dice"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:layout_marginLeft = "135px"
        android:layout_marginTop = "20px" />

然后在我的主要部分我做了这个。

public class Z_veselinovic_yahtzeeActivity extends Activity 
{
    /** Called when the activity is first created. */

    ImageButton button1, button2, button3, button4, button5;
    Button start, reroll, hold;

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Buttons();
    }


    public void Buttons()
    {


        button1 = (ImageButton)findViewById(R.id.dice1);
        button2 = (ImageButton)findViewById(R.id.dice2);
        button3 = (ImageButton)findViewById(R.id.dice3);
        button4 = (ImageButton)findViewById(R.id.dice4);
        button5 = (ImageButton)findViewById(R.id.dice5);

        start = (Button)findViewById(R.id.Start);
        reroll = (Button)findViewById(R.id.Reroll);
        hold = (Button)findViewById(R.id.Hold);

        reroll.setVisibility(View.GONE);
        hold.setVisibility(View.GONE);

        start.setOnClickListener(new OnClickListener()
        {
            public void onClick(View whatever)
            {

                Toast.makeText(getBaseContext(), start.getText() + " Game", Toast.LENGTH_LONG).show();

                Random rand1 = new Random();
                Random rand2 = new Random();
                Random rand3 = new Random();
                Random rand4 = new Random();
                Random rand5 = new Random();

                int dice_num_1 = rand1.nextInt(6) + 1;
                int dice_num_2 = rand2.nextInt(6) + 1;
                int dice_num_3 = rand3.nextInt(6) + 1;
                int dice_num_4 = rand4.nextInt(6) + 1;
                int dice_num_5 = rand5.nextInt(6) + 1;



                if(dice_num_1 == 1)
                {
                    button1.setImageResource(R.drawable.red_1_dice);
                }

                else if(dice_num_1 == 2)
                {
                    button1.setImageResource(R.drawable.red_2_dice);
                }

                else if(dice_num_1 == 3)
                {
                    button1.setImageResource(R.drawable.red_3_dice);
                }

                else if(dice_num_1 == 4)
                {
                    button1.setImageResource(R.drawable.red_4_dice);
                }

                else if(dice_num_1 == 5)
                {
                    button1.setImageResource(R.drawable.red_5_dice);
                }

                else if(dice_num_1 == 6)
                {
                    button1.setImageResource(R.drawable.red_6_dice);
                }




                if(dice_num_2 == 1)
                {
                    button2.setImageResource(R.drawable.red_1_dice);
                }

                else if(dice_num_2 == 2)
                {
                    button2.setImageResource(R.drawable.red_2_dice);
                }

                else if(dice_num_2 == 3)
                {
                    button2.setImageResource(R.drawable.red_3_dice);
                }

                else if(dice_num_2 == 4)
                {
                    button2.setImageResource(R.drawable.red_4_dice);
                }

                else if(dice_num_2 == 5)
                {
                    button2.setImageResource(R.drawable.red_5_dice);
                }

                else if(dice_num_2 == 6)
                {
                    button2.setImageResource(R.drawable.red_6_dice);
                }

我希望这会有所帮助。

Android：如何以编程方式创建多个图像按钮视图？

3 个答案: