java-“很遗憾,我的应用已停止”

概述我正在为Android创建一个应用程序,但发现错误“不幸的是我的应用程序已停止”,请帮我AndroidManifest.xml<?xmlversion="1.0"encoding="utf-8"?><manifestxmlns:android="http://schemas.android.com/apkes/android"pack

我正在为Android创建一个应用程序,但发现错误“不幸的是我的应用程序已停止”,请帮我

AndroIDManifest .xml

            <?xml version="1.0" enCoding="utf-8"?>            <manifest xmlns:androID="http://schemas.androID.com/apk/res/androID"             package="com.example.techtips"             androID:versionCode="1"             androID:versionname="1.0" ><uses-sdk    androID:minSdkVersion="8"    androID:targetSdkVersion="17" /><application    androID:allowBackup="true"    androID:icon="@drawable/ic_launcher"    androID:label="@string/app_name"    androID:theme="@style/Apptheme" >    <activity        androID:name="com.techblogon.activitylifecycleexample.MainActivity"        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=".SecondActivity">    </activity>    </application> </manifest>

RES /布局

layout2 .xml

    <linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"     androID:orIEntation="vertical"     androID:layout_wIDth="match_parent"     androID:layout_height="match_parent">  <TextVIEw     androID:ID="@+ID/textVIEw1"     androID:layout_margintop="150dp"     androID:layout_gravity="center_horizontal"     androID:textSize="23dp"     androID:layout_wIDth="wrap_content"     androID:layout_height="wrap_content"     androID:text="This Is Second Activity" /> </linearLayout>

main.xml中

        <linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"              androID:orIEntation="vertical"              androID:layout_wIDth="match_parent"              androID:layout_height="match_parent">        <TextVIEw           androID:ID="@+ID/textVIEw1"           androID:layout_gravity="center_horizontal"           androID:textSize="23dp"           androID:layout_margintop="150dp"           androID:layout_wIDth="wrap_content"           androID:layout_height="wrap_content"           androID:text="This Is Fist Activity Activity"/>        <button           androID:ID="@+ID/button1"           androID:layout_gravity="center_horizontal"           androID:layout_margintop="20dp"           androID:layout_wIDth="wrap_content"           androID:layout_height="wrap_content"           androID:text="      Second Activity     "            androID:onClick="startSecondActivity"/>        </linearLayout>

src /com.example.techtip/
  MainActivity.java

        package com.example.techtips;        import androID.os.Bundle;        import androID.app.Activity;        import androID.content.Intent;        import androID.util.Log;        import androID.vIEw.VIEw;        import androID.Widget.Toast;     public class MainActivity extends Activity {         /** Called when the activity is first created. */     @OverrIDe       public voID onCreate(Bundle savedInstanceState)      {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        Toast.makeText(this, "On Create Called In First Activity",                      Toast.LENGTH_LONG).show();        Log.i("FirstActivity", "InsIDe onCreate");            }      @OverrIDe  protected voID onStart() {    // Todo auto-generated method stub    super.onStart();    Toast.makeText(this, "On Start Called In First Activity",       Toast.LENGTH_LONG).show();      Log.i("FirstActivity", "InsIDe onStart");   }      @OverrIDe    protected voID onResume() {       // Todo auto-generated method stub       super.onResume();    Toast.makeText(this, "On Resume Called In First Activity",      Toast.LENGTH_LONG).show();     Log.i("FirstActivity", "InsIDe onResume");} @OverrIDeprotected voID onPause() {    // Todo auto-generated method stub    super.onPause();    Toast.makeText(this, "On Pause Called In First Activity", Toast.LENGTH_LONG).show();    Log.i("FirstActivity", "InsIDe onPause");} @OverrIDeprotected voID onStop() {    // Todo auto-generated method stub    super.onStop();    Toast.makeText(this, "On Stop Called In First Activity", Toast.LENGTH_LONG).show();    Log.i("FirstActivity", "InsIDe onStop");}@OverrIDeprotected voID onDestroy()  {    // Todo auto-generated method stub    super.onDestroy();    Toast.makeText(this, "On Destroy Called In First Activity",  Toast.LENGTH_LONG).show();    Log.i("FirstActivity", "InsIDe onDestroy"); } public voID startSecondActivity(VIEw V) {    // create an new Intent and Start Second Activity    Intent intent=new Intent(this,SecondActivity.class);    startActivity(intent);  }}

SecondActivity.java

  package com.example.techtips;    import androID.app.Activity;    import androID.os.Bundle;    import androID.util.Log;    import androID.Widget.Toast;   public class SecondActivity extends Activity{  /** Called when the activity is first created. */@OverrIDe  public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.layout2);        Toast.makeText(this, "On Create Called In Second Activity",  Toast.LENGTH_LONG).show();        Log.i("SecondActivity", "InsIDe onCreate");}   @OverrIDe  protected voID onStart() {    // Todo auto-generated method stub    super.onStart();    Toast.makeText(this, "On Start Called In Second Activity",    Toast.LENGTH_LONG).show();    Log.i("SecondActivity", "InsIDe onStart");}  @OverrIDe protected voID onResume(){    // Todo auto-generated method stub    super.onResume();    Toast.makeText(this, "On Resume Called In Second Activity",     Toast.LENGTH_LONG).show();           Log.i("SecondActivity", "InsIDe onResume");}  @OverrIDe  protected voID onPause() {     // Todo auto-generated method stub    super.onPause();    Toast.makeText(this, "On Pause Called In Second Activity", Toast.LENGTH_LONG).show();     Log.i("SecondActivity", "InsIDe onPause"); } @OverrIDeprotected voID onStop() {     // Todo auto-generated method stub    super.onStop();    Toast.makeText(this, "On Stop Called In Second Activity",    Toast.LENGTH_LONG).show();            Log.i("SecondActivity", "InsIDe onStop");} @OverrIDe protected voID onDestroy() {    // Todo auto-generated method stub    super.onDestroy();    Toast.makeText(this, "On Destroy Called In Second Activity",   Toast.LENGTH_LONG).show();    Log.i("SecondActivity", "InsIDe onDestroy");       } }

请帮助他解决

并且还请帮助我创建像这样的简单应用程序??请帮助我

图片：i.stack.imgur.com/20iui.jpg

解决方法:

清单文件中的程序包名称不构成IMO.首先尝试纠正它们；

package="com.example.techtips"

和

   <activity        androID:name="com.techblogon.activitylifecycleexample.MainActivity"        androID:label="@string/app_name" >

尝试将第二个更改为：

 <activity        androID:name=".MainActivity"        androID:label="@string/app_name" >

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