Question

我已经为它创建了一个CustomView和一个xml布局，以便能够为我的Activity充气但是在运行Activity时永远不会得到任何布局，而是我得到一条错误消息，指示错误解析xml文件布局< / p>

这是我的活动 package com.example.myproject;

 import android.os.Bundle;
 import android.app.Activity;
 import android.view.Menu;

  public class MainActivity extends Activity {

   @Override
protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.custom_view_layout); 
 }

@Override
 public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

 }


    and this is my custom view


 package com.example.myproject;

import android.content.Context;
 import android.graphics.Canvas;
  import android.graphics.Color;
 import android.view.View;

 public class CustomView extends View {

public CustomView(Context context) {
     super(context);

 }

  protected void onDraw(Canvas canvas){

      canvas.drawColor(Color.GREEN);
}
  }


       and this is the layout i made for it


 <com.exemple.myproject.CustomView 
 xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
 android:layout_height="match_parent"
  android:orientation="vertical" >
</com.exemple.myproject.CustomView>

  and this is my Android Manifest

   <manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.example.myproject"
  android:versionCode="1"
  android:versionName="1.0" >

 <uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />

  <application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.myproject.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>
</application>

Answer 1

com.exemple.myproject.CustomView

可能是'example'而不是'exemple'。

如果您有视图的自定义参数，请添加xmlns:yourapp="http://schemas.android.com/apk/res-auto"。

无法从Android中的XML布局中扩充自定义视图

1 个答案: