按下按钮撞毁我是继谷歌的网站开发者指南：http://developer.android.com/training/basics/firstapp/starting-activity.html仿真器在应用
但每当我按在我的仿真器按钮的应用程序崩溃。 我在我的手机上试过了，并且得到了相同的结果。这里是我的代码 压痕无法正常工作就在这里 主要活动：
package com.example.rishubs.app;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends Activity {
public final static String EXTRA_MESSAGE = "com.example.myapp.MESSAGE";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
/** Called when Button is pressed */
public void sendMessage(View view) {
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
}
我的XML：
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.rishubs.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".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=".DisplayMessageActivity"
android:label="@string/app_name">
</activity>
</application>
</manifest>
我的第二个活动
package com.example.rishubs.app;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
public class DisplayMessageActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get Message from intent
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
setContentView(textView);
}
}
更新XML：
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.rishubs.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".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=".DisplayMessageActivity"
android:label="@string/app_name">
</activity>
<activity android:name="DisplayMessageActivity">
</activity>
</application>
</manifest>
的logcat：
07-15 18:48:26.605: E/AndroidRuntime(1454): FATAL EXCEPTION: main 07-15 18:48:26.605: E/AndroidRuntime(1454): java.lang.IllegalStateException: Could not find a method send message(View) in the activity class com.example.rishubs.app.MainActivity for onClick handler on view class android.widget.Button 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.view.View$1.onClick(View.java:3031) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.view.View.performClick(View.java:3511) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.view.View$PerformClick.run(View.java:14105) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.os.Handler.handleCallback(Handler.java:605) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.os.Handler.dispatchMessage(Handler.java:92) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.os.Looper.loop(Looper.java:137) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.app.ActivityThread.main(ActivityThread.java:4424) 07-15 18:48:26.605: E/AndroidRuntime(1454): at java.lang.reflect.Method.invokeNative(Native Method) 07-15 18:48:26.605: E/AndroidRuntime(1454): at java.lang.reflect.Method.invoke(Method.java:511) 07-15 18:48:26.605: E/AndroidRuntime(1454): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 07-15 18:48:26.605: E/AndroidRuntime(1454): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 07-15 18:48:26.605: E/AndroidRuntime(1454): at dalvik.system.NativeStart.main(Native Method) 07-15 18:48:26.605: E/AndroidRuntime(1454): Caused by: java.lang.NoSuchMethodException: send message [class android.view.View] 07-15 18:48:26.605: E/AndroidRuntime(1454): at java.lang.Class.getConstructorOrMethod(Class.java:460) 07-15 18:48:26.605: E/AndroidRuntime(1454): at java.lang.Class.getMethod(Class.java:915) 07-15 18:48:26.605: E/AndroidRuntime(1454): at android.view.View$1.onClick(View.java:3024) 07-15 18:48:26.605: E/AndroidRuntime(1454): ... 11 more
请提供您的logcat的输出看错误日志。 – 2012-07-15 18:08:46
请你也可以显示你的按钮的'onClickListener'和一些日志。 – yugidroid 2012-07-15 18:17:32
尝试重新调整您的设备...这不是我们正在等待的那个日志：P并且编辑你的问题并且把日志放在那里而不是评论。 – yugidroid 2012-07-15 18:22:42