October 20th, 2011, 05:56 PM
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Calling an activity from dynamically created buttons
I am creating a grid of buttons, each button will open an activity (showstory) and send it a number so that the right info can be pulled from an array to display a string in showstory.
I keep getting a force close when I call the New Activity
Here is my Button Adapter, I tried things a couple of different ways. one way is commented out
Code:
package com.soce.qronicle;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
public class ButtonAdapter extends BaseAdapter {
final Context mContext;
private int butts;
// final Intent i;
// Gets the context so it can be used later
public ButtonAdapter(Context c, int b) {
mContext = c;
butts = b;
// i = new Intent(mContext, showstory.class);
// i.putExtra("storyid",butts);
}
// Total number of things contained within the adapter
public int getCount() {
return butts;
}
// Require for structure, not really used in my code.
public Object getItem(int position) {
return null;
}
// Require for structure, not really used in my code. Can
// be used to get the id of an item in the adapter for
// manual control.
public long getItemId(int position) {
return position;
}
public View getView(final int position,View convertView, ViewGroup parent) {
Button btn;
if (convertView == null) {
// if it's not recycled, initialize some attributes
btn = new Button(mContext);
btn.setLayoutParams(new GridView.LayoutParams(100, 100));
btn.setPadding(8, 8, 8, 8);
}
else {
btn = (Button) convertView;
}
btn.setText(Integer.toString(position+1));
btn.setTextColor(Color.GRAY);
btn.setBackgroundResource(R.drawable.button100);
btn.setId(position);
Log.d("_CREATED", Integer.toString(position));
btn.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v)
{
Log.d("_X_X_X", Integer.toString(position));
Intent i = new Intent(mContext, showstory.class);
i.putExtra("storyid",butts);
mContext.startActivity(i);
//perform action
}
});
return btn;
}
}
Manifest
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.soce.qronicle"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
<activity android:name=".QRonicleActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".addscreen" android:label="Add Screen" >
</activity>
<activity android:name=".writestory" android:label="Write Story Screen" >
</activity>
<activity android:name=".viewscreen" android:label="View Story Screen" >
</activity>
<activity android:name=".showstory" android:label="View the Story" >
</activity>
<activity android:name=".ButtonAdapter" android:label="Button Adapter" >
</activity>
</application>
</manifest>
LogCat
Code:
10-20 18:55:24.676: INFO/ActivityManager(102): Starting activity: Intent { cmp=com.soce.qronicle/.showstory (has extras) }
10-20 18:55:24.756: WARN/Bundle(1992): Key storyid expected String but value was a java.lang.Integer. The default value <null> was returned.
10-20 18:55:24.806: DEBUG/dalvikvm(1992): GC_FOR_MALLOC freed 3041 objects / 189560 bytes in 30ms
10-20 18:55:24.806: WARN/Bundle(1992): Attempt to cast generated internal exception:
10-20 18:55:24.806: WARN/Bundle(1992): java.lang.ClassCastException: java.lang.Integer
10-20 18:55:24.806: WARN/Bundle(1992): at android.os.Bundle.getString(Bundle.java:1040)
10-20 18:55:24.806: WARN/Bundle(1992): at com.soce.qronicle.showstory.onCreate(showstory.java:17)
10-20 18:55:24.806: WARN/Bundle(1992): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1069)
10-20 18:55:24.806: WARN/Bundle(1992): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2751)
10-20 18:55:24.806: WARN/Bundle(1992): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2803)
10-20 18:55:24.806: WARN/Bundle(1992): at android.app.ActivityThread.access$2300(ActivityThread.java:135)
10-20 18:55:24.806: WARN/Bundle(1992): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2136)
10-20 18:55:24.806: WARN/Bundle(1992): at android.os.Handler.dispatchMessage(Handler.java:99)
10-20 18:55:24.806: WARN/Bundle(1992): at android.os.Looper.loop(Looper.java:144)
10-20 18:55:24.806: WARN/Bundle(1992): at android.app.ActivityThread.main(ActivityThread.java:4937)
10-20 18:55:24.806: WARN/Bundle(1992): at java.lang.reflect.Method.invokeNative(Native Method)
10-20 18:55:24.806: WARN/Bundle(1992): at java.lang.reflect.Method.invoke(Method.java:521)
10-20 18:55:24.806: WARN/Bundle(1992): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-20 18:55:24.806: WARN/Bundle(1992): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-20 18:55:24.806: WARN/Bundle(1992): at dalvik.system.NativeStart.main(Native Method)
Debug
Code:
Thread [<1> main] (Suspended (exception RuntimeException))
ActivityThread.performLaunchActivity(ActivityThread$ActivityRecord, Intent) line: 2787
ActivityThread.handleLaunchActivity(ActivityThread$ActivityRecord, Intent) line: 2803
ActivityThread.access$2300(ActivityThread, ActivityThread$ActivityRecord, Intent) line: 135
ActivityThread$H.handleMessage(Message) line: 2136
ActivityThread$H(Handler).dispatchMessage(Message) line: 99
Looper.loop() line: 144
ActivityThread.main(String[]) line: 4937
Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method]
Method.invoke(Object, Object...) line: 521
ZygoteInit$MethodAndArgsCaller.run() line: 868
ZygoteInit.main(String[]) line: 626
NativeStart.main(String[]) line: not available [native method]
Cheers!
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