编辑:发布完整代码(除XML外,它是一堆荒谬的表格格式!)请忽略与我的问题无关的代码!我现在只是获得功能。稍后我会清理它。
第一个应用程序和第一个问题。我已经在这里研究了一段时间,通常能找到答案,但我有一个非常明显的错误。我有一个图像按钮似乎没有调用指定的方法。
我的图像按钮的XML:
<ImageButton
android:background="@null"
android:onClick="click"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageButton1"
android:src="@drawable/stats"
android:layout_gravity="center_vertical">
</ImageButton>
我的代码:
package com.talismancs;
import android.app.Activity;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
public class sheet extends Activity{
private String selection;
private String pick;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sheet);
Bundle extras = getIntent().getExtras();
if(extras !=null) {
// Get extra from .main and remove spaces
String pick = extras.getString(selection);
pick = pick.replace(" ", "");
//Convert extra from string to int as ID and make image
int imageResource = getResources().getIdentifier(pick, "drawable", getPackageName());
ImageView iv = (ImageView) findViewById(R.id.imageView1);
final Drawable image = getResources().getDrawable(imageResource);
iv.setImageDrawable(image);
// Populate tv's from string
TextView tv1 = (TextView) findViewById(R.id.textView4);
TextView tv2 = (TextView) findViewById(R.id.textView5);
TextView tv3 = (TextView) findViewById(R.id.textView6);
TextView tv4 = (TextView) findViewById(R.id.textView7);
TextView tv5 = (TextView) findViewById(R.id.textView8);
int arrayresource = getResources().getIdentifier(pick, "array", getPackageName());
String[] CharString = getResources().getStringArray(arrayresource);
tv1.setText(CharString[0]);
tv2.setText(CharString[1]);
tv3.setText(CharString[2]);
tv4.setText(CharString[3]);
tv5.setText(CharString[4]);
}
}
public void onClick(View view) {
Intent i = new Intent(sheet.this, stats.class);
i.putExtra(pick, pick);
startActivity(i);
}
看起来很简单吧?但是当我点击图像按钮时,它却什么都不做!
请帮忙解决。
编辑:在选择下拉列表项后,我们进入这个活动表单的LOGCAT。
> 03-16 06:15:38.977:
> INFO/ActivityManager(563): Displayed
> activity com.talismancs/.sheet: 766 ms
> 03-16 06:15:42.907:
> DEBUG/dalvikvm(1735): GC freed 448
> objects / 39160 bytes in 58ms 03-16
> 06:15:43.847:
> INFO/NotificationService(563):
> enqueueToast pkg=com.talismancs
> callback=android.app.ITransientNotification$Stub$Proxy@43773720
> duration=1 03-16 06:15:43.877:
> INFO/ActivityManager(563): Starting
> activity: Intent {
> comp={com.talismancs/com.talismancs.sheet} (has extras) } 03-16 06:15:43.917:
> WARN/InputManagerService(563): Window
> already focused, ignoring focus gain
> of:
> com.android.internal.view.IInputMethodClient$Stub$Proxy@43718320
> 03-16 06:15:44.527:
> INFO/ActivityManager(563): Displayed
> activity com.talismancs/.sheet: 646 ms
之后,当我点击imageButton时,它什么也不做。