Android基于TextView不获取焦点实现跑马灯效果

packagecom.example.tt;

importandroid.content.Context;

importandroid.graphics.Rect;

importandroid.util.AttributeSet;

importandroid.widget.TextView;

publicclassScrollingTextViewextendsTextView {

  publicScrollingTextView(Context context, AttributeSet attrs,intdefStyle) {

    super(context, attrs, defStyle);

  }

  publicScrollingTextView(Context context, AttributeSet attrs) {

    super(context, attrs);

  }

  publicScrollingTextView(Context context) {

    super(context);

  }

  @Override

  protectedvoidonFocusChanged(booleanfocused,intdirection, Rect previouslyFocusedRect) {

    if(focused)

      super.onFocusChanged(focused, direction, previouslyFocusedRect);

  }

  @Override

  publicvoidonWindowFocusChanged(booleanfocused) {

    if(focused)

      super.onWindowFocusChanged(focused);

  }

  @Override

  publicbooleanisFocused() {

    returntrue;

  }

}

  android:orientation="vertical"

  android:layout_width="fill_parent"

  android:layout_height="fill_parent"

  >

   android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:layout_marginLeft="80dip"

    android:layout_marginBottom="25dip"

    android:textSize="25sp"

    android:singleLine="true"

    android:textColor="@android:color/black"

    android:ellipsize="marquee"

    android:focusable="true"

    android:marqueeRepeatLimit="marquee_forever"

    android:focusableInTouchMode="true"

    android:scrollHorizontally="true"

    android:text="这才是真正的文字跑马灯效果,文字移动速度，文字移动方向，文字移动的样式，动画等等……"

    android:background="#2FFFFFFF"/>

  android:id="@+id/button1"

  android:layout_width="wrap_content"

  android:layout_height="wrap_content"

  android:text="Button"/>

packagecom.example.tt;

importandroid.os.Bundle;

importandroid.app.Activity;

importandroid.view.Menu;

publicclassMainActivityextendsActivity {

  @Override

  publicvoidonCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

  }

}