无法解析方法findViewByID

Question

我对android开发很新,所以如果我无法理解这里到底发生了什么,我很抱歉.

我已经创建了一个形状,如下所示.它包含在drawable文件夹中的shape.xml中:

<?xml version="1.0" encoding="UTF-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >

<solid
    android:color="@color/lboro_pink"/>

<stroke
    android:width="50dp"
    android:color="@color/lboro_blue"/>

<padding android:left="1dp"
    android:top="1dp"
    android:right="1dp"
    android:bottom="1dp"/>

<corners
    android:bottomRightRadius="7dp"
    android:bottomLeftRadius="7dp"
    android:topLeftRadius="7dp"
    android:topRightRadius="7dp"/>
</shape>

现在在我的activity_main.xml中我有这个TextView:

<TextView
    android:id="@+id/grid_1"
    android:background="@drawable/shape"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:layout_weight="1"
    android:text="@string/event_1"/>

现在这是我的MainActivity.java:

import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MenuInflater;
import android.widget.ImageView;
import android.widget.TextView;
import android.content.res.Resources;


public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ImageView image = (ImageView) findViewById(R.id.test_image);

    Resources res = getResources();
    Drawable shape = res. getDrawable(R.drawable.shape);

    TextView tv = (TextView)findViewByID(R.id.grid_1);
    tv.setBackground(shape);
}

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

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}
}

我一直在尝试按照这个文档来执行此操作,并通过使用他们的代码我只是得到错误,它"无法解析方法findViewByID".我已经搜索了答案,但只是无法理解他们正在试图解释什么,当官方的Android文档说这样做.

所有我想要做的就是将我创建的形状应用为TextView的背景.

任何帮助是极大的赞赏.谢谢 :)

Answer 1

TextView tv = (TextView)findViewByID(R.id.grid_1); 

这条线拼写错误.它应该是

TextView tv = (TextView)findViewById(R.id.grid_1);