好的谢谢你的阅读。我有一个8按钮用于8的意图。
在按钮1的意图。正合情理。再开一堂课。但是当我试图点击2-8然后崩溃。
我增加了8个类来表现,但仍然崩溃。
我的问题是。如何实现多个意向按钮?
这是我的主要代码
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
Button button1;
Button button02;
Button button3;
Button button4;
Button button5;
Button button6;
Button button7;
Button button8;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the view from activity_main.xml
setContentView(R.layout.activity_main);
// Locate the button in activity_main.xml
button1 = (Button) findViewById(R.id.button1);
button02 = (Button) findViewById(R.id.button02);
button3 = (Button) findViewById(R.id.button3);
button4 = (Button) findViewById(R.id.button4);
button5 = (Button) findViewById(R.id.button5);
button6 = (Button) findViewById(R.id.button6);
button7 = (Button) findViewById(R.id.button7);
button8 = (Button) findViewById(R.id.button8);
// Capture button clicks
button1.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Bbarung.class);
startActivity(myIntent);
}
});
button02.setOnClickListener(new OnClickListener() {
public void onClick(View arg1) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Bpanerus.class);
startActivity(myIntent);
}
});
button3.setOnClickListener(new OnClickListener() {
public void onClick(View arg2) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Gong.class);
startActivity(myIntent);
}
});
button4.setOnClickListener(new OnClickListener() {
public void onClick(View arg3) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Kenong.class);
startActivity(myIntent);
}
});
button5.setOnClickListener(new OnClickListener() {
public void onClick(View arg4) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Sbarung.class);
startActivity(myIntent);
}
});
button6.setOnClickListener(new OnClickListener() {
public void onClick(View arg5) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Sdemung.class);
startActivity(myIntent);
}
});
button7.setOnClickListener(new OnClickListener() {
public void onClick(View arg6) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Spanerus.class);
startActivity(myIntent);
}
});
button8.setOnClickListener(new OnClickListener() {
public void onClick(View arg7) {
// Start NewActivity.class
Intent myIntent = new Intent(MainActivity.this,
Slenthem.class);
startActivity(myIntent);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}这是我的xml代码。
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/button1"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonbbarung" />
<Button
android:id="@+id/button02"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonbpanerus" />
<Button
android:id="@+id/button3"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttongong" />
<Button
android:id="@+id/button4"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonkenong" />
<Button
android:id="@+id/button5"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonsbarung" />
<Button
android:id="@+id/button6"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonsdemung" />
<Button
android:id="@+id/button7"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonspanerus" />
<Button
android:id="@+id/button8"
android:layout_width="1280px"
android:layout_height="309px"
android:background="@drawable/buttonslenthem" />
</LinearLayout>
</ScrollView>我的舱单
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:screenOrientation="landscape" >>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.main.Bbarung"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Bpanerus"
android:label="@string/hello_world"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Gong"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Kenong"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Sbarung"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Sdemung"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Spanerus"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
<activity
android:name="com.example.main.Slenthem"
android:label="@string/app_name"
android:screenOrientation="landscape">
</activity>
</application>
</manifest>最后是我的logcat错误
08-08 19:34:45.550: E/AndroidRuntime(1172): FATAL EXCEPTION: main
08-08 19:34:45.550: E/AndroidRuntime(1172): java.lang.RuntimeException:
Unable to start activity
ComponentInfo{com.example.main/com.example.main.MainActivity}:
java.lang.ClassCastException: com.example.main.MainActivity cannot be cast
to android.view.View$OnClickListener
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.ActivityThread.access$600(ActivityThread.java:141)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.os.Handler.dispatchMessage(Handler.java:99)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.os.Looper.loop(Looper.java:137)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.ActivityThread.main(ActivityThread.java:5041)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
java.lang.reflect.Method.invokeNative(Native Method)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
java.lang.reflect.Method.invoke(Method.java:511)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:793)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
dalvik.system.NativeStart.main(Native Method)
08-08 19:34:45.550: E/AndroidRuntime(1172): Caused by:
java.lang.ClassCastException: com.example.main.MainActivity cannot be cast
to android.view.View$OnClickListener
08-08 19:34:45.550: E/AndroidRuntime(1172): at
com.example.main.MainActivity.addListenerOnButton(MainActivity.java:36)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
com.example.main.MainActivity.onCreate(MainActivity.java:28)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.Activity.performCreate(Activity.java:5104)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
08-08 19:34:45.550: E/AndroidRuntime(1172): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
08-08 19:34:45.550: E/AndroidRuntime(1172): ... 11 more谢谢你的建议,这使我很自以为是,我尝试了其他的方法,但仍然让我困惑于8按钮的意图。
-问题解决-
我的错误不是在我的程序中添加"addListenerOnButton“。
但是,这个链接可以解析为多个活动。
只需添加.xml代码
android:onClick="onClick"并在.java中使用这个
public void onClick(View v){对我来说很管用。谢谢你的帮助。:)
发布于 2015-08-08 20:18:22
清理项目,再试一次。如何清理android项目
https://stackoverflow.com/questions/31898028
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