Android View三种熟悉——visible,invisible,gone

在Android中，凡是view和view的子类都有visible,invisible 和 gone三种属性，下面是他们的区别：

visible： view显示出来

invisible：view隐藏起来

gone： view 从布局中删除

示例：

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:orientation="vertical" android:background="@drawable/box" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:background="@drawable/red" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/visibility_1_view_1"/> <TextView android:id="@+id/victim" android:background="@drawable/green" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/visibility_1_view_2"/> <TextView android:background="@drawable/blue" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/visibility_1_view_3"/> </LinearLayout> <LinearLayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content"> <Button android:id="@+id/vis" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/visibility_1_vis"/> <Button android:id="@+id/invis" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/visibility_1_invis"/> <Button android:id="@+id/gone" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/visibility_1_gone"/> </LinearLayout> </LinearLayout>

public class Visibility1 extends Activity { private View mVictim; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.visibility_1); // Find the view whose visibility will change mVictim = findViewById(R.id.victim); // Find our buttons Button visibleButton = (Button) findViewById(R.id.vis); Button invisibleButton = (Button) findViewById(R.id.invis); Button goneButton = (Button) findViewById(R.id.gone); // Wire each button to a click listener visibleButton.setOnClickListener(mVisibleListener); invisibleButton.setOnClickListener(mInvisibleListener); goneButton.setOnClickListener(mGoneListener); } OnClickListener mVisibleListener = new OnClickListener() { public void onClick(View v) { mVictim.setVisibility(View.VISIBLE); } }; OnClickListener mInvisibleListener = new OnClickListener() { public void onClick(View v) { mVictim.setVisibility(View.INVISIBLE); } }; OnClickListener mGoneListener = new OnClickListener() { public void onClick(View v) { mVictim.setVisibility(View.GONE); } }; }

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