报这样的错:The application has stoped unexpectedly.please try again!
求大虾们,指教?
求大虾们,指教?
解决方案 »
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/* import相关class */
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.content.Intent;
public class EX03_09 extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
/* 加载main.xml Layout */
setContentView(R.layout.main);
/* 以findViewById()取得Button对象,并加入onClickListener */
Button b1 = (Button) findViewById(R.id.button1);
b1.setOnClickListener(new Button.OnClickListener()
{
public void onClick(View v)
{
/* new一个Intent对象,并指定要启动的class */
Intent intent = new Intent();
intent.setClass(EX03_09.this, EX03_09_1.class);
/* 调用一个新的Activity */ startActivity(intent);
/* 关闭原本的Activity */ EX03_09.this.finish();
}
});
}
}
package irdc.ex03_09;
/* import相关class */
import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class EX03_09_1 extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
/* 载入mylayout.xml Layout */
setContentView(R.layout.mylayout);
/* 以findViewById()取得Button对象,并加入onClickListener */
Button b2 = (Button) findViewById(R.id.button2);
b2.setOnClickListener(new Button.OnClickListener()
{
public void onClick(View v)
{
/* new一个Intent对象,并指定要启动的class */
Intent intent = new Intent();
intent.setClass(EX03_09_1.this, EX03_09.class);
/* 调用一个新的Activity */ startActivity(intent);
/* 关闭原本的Activity */
EX03_09_1.this.finish();
}
});
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="irdc.ex03_09"
android:versionCode="1"
android:versionName="1.0.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".EX03_09"
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="EX03_09_1"></activity>
</application>
<uses-sdk android:minSdkVersion="7" />
</manifest>