我是创建android应用程序和java编程的新手。以下代码来自我看过的教程。从随机获取setImageResource的结果并将其设置为字符串
所以在我的untimed.xml中我有16个ImageButton和1个TextView和一个带有listview的scrollview。 所以每个ImgBtn都有它的id = Button1,Button2 ... textView id是textHere。 在我Untimed.java
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
public class Untimed extends Activity{
String hello;
TextView text;
ImageButton image1, image2, image3, image4, image5, image6, image7, image8, image9, image10, image11, image12, image13, image14, image15, image16;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.untimed);
final TextView text = (TextView) findViewById(R.id.textHere);
final ImageButton image1 = (ImageButton) findViewById(R.id.Button1);
final ImageButton image2 = (ImageButton) findViewById(R.id.Button2);
final ImageButton image3 = (ImageButton) findViewById(R.id.Button3);
final ImageButton image4 = (ImageButton) findViewById(R.id.Button4);
final ImageButton image5 = (ImageButton) findViewById(R.id.Button5);
final ImageButton image6 = (ImageButton) findViewById(R.id.Button6);
final ImageButton image7 = (ImageButton) findViewById(R.id.Button7);
final ImageButton image8 = (ImageButton) findViewById(R.id.Button8);
final ImageButton image9 = (ImageButton) findViewById(R.id.Button9);
final ImageButton image10 = (ImageButton) findViewById(R.id.Button10);
final ImageButton image11 = (ImageButton) findViewById(R.id.Button11);
final ImageButton image12 = (ImageButton) findViewById(R.id.Button12);
final ImageButton image13 = (ImageButton) findViewById(R.id.Button13);
final ImageButton image14 = (ImageButton) findViewById(R.id.Button14);
final ImageButton image15 = (ImageButton) findViewById(R.id.Button15);
final ImageButton image16 = (ImageButton) findViewById(R.id.Button16);
final int[] myPics = { R.drawable.lettera, R.drawable.letterb, R.drawable.letterc, R.drawable.lettere,R.drawable.letteri, R.drawable.lettero, R.drawable.letteru, R.drawable.letterd, R.drawable.letterf, R.drawable.letterg,R.drawable.letterh, R.drawable.letterj, R.drawable.letterk, R.drawable.letterl, R.drawable.letterm, R.drawable.lettern,R.drawable.letterp, R.drawable.letterq, R.drawable.letterqu, R.drawable.letterr, R.drawable.letters, R.drawable.lettert, R.drawable.letterv,R.drawable.letterw, R.drawable.letterx, R.drawable.lettery, R.drawable.letterz };
int rando = (int)(Math.random()* 27);
image1.setImageResource(myPics[rando]);
int rando1 = (int)(Math.random()* 27);
image2.setImageResource(myPics[rando1]); (... to image16)
image1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (!image1.equals(getResources(R.drawable.lettera))){
hello = "A";
text.setText(hello);
}
else{
if (!image1.equals(getResources(R.drawable.letterb))){
hello = "B";
text.setText(hello);
}
else{
if (!image1.equals(getResources(R.drawable.letterc))){
hello = "C";
text.setText(hello);
}
else{ .......(same codes for the rest)
}});
}
// I created this method because there are errors in getResources in the above codes.
protected Object getResources(int letterz) {
// TODO Auto-generated method stub
return null;
}
}
的代码工作(我认为),因为每当我单击第一幅图像,TextView的显示我希望它“A”,只有字母A. 显示确切的值。就像如果显示的图像是字母F那么也应该等于字母F
TextView的请帮忙。:(
哦,你应该看看gridview/listview,这对于这么简单的需求来说代码太多了 – 2014-10-07 14:53:11
我在使用这个之前使用了gridview。但我不知道如何用图像填充它。 – 2014-10-07 15:00:46
@ A.S。有关我的问题的任何建议?我找不到任何关于此的教程。我真的需要帮助。 – 2014-10-07 15:02:46