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04项目的目录结构分析与资源引用
普通字符串资源:
布局资源:
案例:
main.xml:
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="240dp"
android:text="加油吧!少年!"
/>
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/msg"
android:onClick="test"
/>
R.java:
public final class R {
public static final class attr {
}
public static final class drawable {
public static final int ic_launcher=0x7f020000;
}
public static final class id {
public static final int button1=0x7f050001;
public static final int textView1=0x7f050000;
}
public static final class layout {
public static final int main=0x7f030000;
}
public static final class string {
public static final int app_name=0x7f040000;
public static final int hello=0x7f040001;
public static final int msg=0x7f040002;
}
}
Strings.xml:
<resources>
<string name="app_name">ONEAndroid</string>
<string name="hello">Hello World, ONEAndroidActivity!</string>
<string name="msg">welcome,weini!</string>
</resources>
ONEAndroidActivity.java:
public void test(View view){
TextView textView1=(TextView) findViewById (R.id.textView1);
textView1.setText("The greatest test of courage on earth is to bear defeat without losing heart\n世界上对勇气的最大考验是忍受失败而不丧失信心。");
Toast.makeText(ONEAndroidActivity.this, "点击button",Toast.LENGTH_SHORT).show();
}
运行结果:
点击按钮前:
点击按后:
中英文时候的选择:
图示:
04项目的目录结构分析与资源引用