要崩溃了，两个Activity无法跳转，什么错都不报，3天了系统都重装了

penghaozmb 2012-06-21 12:03:08

新手，跪求答案。

目录结构、android版本。点按钮就卡那里不动

第一个Activity。

package my.android;



import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;



public class MyAndroidActivity extends Activity {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        TextView tvTextView=(TextView) findViewById(R.id.mytv);

        tvTextView.setText("wo cao");

        Button btnButton=(Button) findViewById(R.id.mybutton);

        btnButton.setText("my button");

        btnButton.setOnClickListener(new android.view.View.OnClickListener() {

			@Override

			public void onClick(View v) {

				// TODO Auto-generated method stub

			//	MyAndroidActivity.this.finish();

				Intent intent=new Intent();

				intent.putExtra("key", "zai cao");

				intent.setClass(MyAndroidActivity.this, ActivityTwo.class);

				MyAndroidActivity.this.startService(intent);

			//	MyAndroidActivity.this.finish();

			}

		});

    }

 

   /*  class MyButtonLN implements android.view.View.OnClickListener{

			@Override

			public void onClick(View v) {

				// TODO Auto-generated method stub

				Intent intent=new Intent();

				intent.setClass(MyAndroidActivity.this, ActivityTwo.class);

				MyAndroidActivity.this.startService(intent);

			}

			

	   } 

 */

}

第二个Activity

package my.android;



import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.widget.TextView;



public class ActivityTwo extends Activity {



    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.two);

        Intent thisintent=getIntent();

        String keyValue=thisintent.getStringExtra("key");

        TextView tvTextView=(TextView) findViewById(R.id.twotv);

        tvTextView.setText(keyValue);

 

    }  

}

R文件



package my.android;



public final class R {

    public static final class attr {

    }

    public static final class drawable {

        public static final int ic_launcher=0x7f020000;

    }

    public static final class id {

        public static final int mybutton=0x7f050001;

        public static final int mytv=0x7f050000;

        public static final int twotv=0x7f050002;

    }

    public static final class layout {

        public static final int main=0x7f030000;

        public static final int two=0x7f030001;

    }

    public static final class string {

        public static final int app_name=0x7f040001;

        public static final int hello=0x7f040000;

    }

}

layout文件夹，main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >



    <TextView

        android:id="@+id/mytv"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="@string/hello" />

    <Button 

        android:id="@+id/mybutton"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="@string/hello" />



</LinearLayout>

第二个xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

        <TextView 

        android:id="@+id/twotv"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content">

        </TextView>



</LinearLayout>

mainifest文件

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="my.android"

    android:versionCode="1"

    android:versionName="1.0" >



    <uses-sdk android:minSdkVersion="15" />



    <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name" >

        <activity

            android:name=".MyAndroidActivity"

            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=".ActivityTwo"

            android:label="newActiviyyTwo" >

        </activity>

    </application>

</manifest>