lastView 为空问题。

Author: evilbinary

app/build.gradle

@@ -6,8 +6,8 @@ android {
 
  defaultConfig {
  applicationId "evilbinary.org.tvwidget"
- minSdkVersion 19
- targetSdkVersion 19
+ minSdkVersion 14
+ targetSdkVersion 14
  versionCode 1
  versionName "1.0"
  }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
  package="org.evilbinary.tv">
 
  <application
+ android:screenOrientation="sensor"
  android:allowBackup="true"
  android:icon="@mipmap/ic_launcher"
  android:label="@string/app_name"

app/src/main/java/org/evilbinary/tv/DemoGridViewActivity.java

@@ -24,8 +24,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
  GridView gridView = (GridView) findViewById(R.id.gridView);
 
- gridView.getColumnWidth();
- gridView.getVerticalSpacing();
+
 
  MyGridViewAdapter myAdapter = new MyGridViewAdapter(R.layout.item_grid);
  gridView.setAdapter(myAdapter);

app/src/main/res/drawable/border_shape_with_border.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+ <stroke android:color="@color/greenyellow" android:width="4dp" android:dashWidth="4dp" android:dashGap="4dp"/>
+ <corners android:radius="4dp"/>
+ <solid android:color="#2287CEFA" />
+</shape>

app/src/main/res/layout/custom_item.xml

@@ -5,21 +5,22 @@
  android:layout_gravity="center"
  android:layout_margin="12dp"
  android:focusable="true"
- android:background="@drawable/border_shape"
- android:gravity="center">
+
+ android:background="@drawable/border_shape_with_border"
+ >
 
  <TextView
  android:id="@+id/textView"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:layout_alignParentStart="true"
  android:layout_alignParentTop="true"
- android:layout_gravity="center"
+ android:layout_gravity="top"
  android:focusable="false"
  android:gravity="center"
  android:text="自定义border样式"
  android:textAlignment="center"
- android:textColor="@color/white"
+ android:textColor="@color/coral"
  android:textSize="20sp" />
 
 </RelativeLayout>

lib/build.gradle

@@ -5,7 +5,7 @@ android {
  buildToolsVersion "23.0.2"
 
  defaultConfig {
- minSdkVersion 19
+ minSdkVersion 14
  targetSdkVersion 19
  versionCode 1
  versionName "1.0"

lib/src/main/java/org/evilbinary/tv/widget/BorderEffect.java

@@ -93,9 +93,9 @@ public void onFocusChanged(View oldFocus, View newFocus) {
  }
  };
 
- private List<AdapterView.OnItemSelectedListener> onItemSelectedListenerList = new ArrayList<>();
 
  public FocusListener absListViewFocusListener = new FocusListener() {
+ private List<AdapterView.OnItemSelectedListener> onItemSelectedListenerList = new ArrayList<>();
  @Override
  public void onFocusChanged(View oldFocus, View newFocus) {
  for (View attachView : attacheViews) {
@@ -116,14 +116,16 @@ public void onFocusChanged(View oldFocus, View newFocus) {
  public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
  newFocus = view;
 
+ newFocus.bringToFront();
 
  int w = view.getMeasuredWidth();
  int h = view.getMeasuredHeight();
- int ww = View.MeasureSpec.makeMeasureSpec(w, View.MeasureSpec.EXACTLY);
- int hh = View.MeasureSpec.makeMeasureSpec(h, View.MeasureSpec.EXACTLY);
- view.measure(ww,hh);
+ int ww = View.MeasureSpec.makeMeasureSpec(w, View.MeasureSpec.AT_MOST);
+ int hh = View.MeasureSpec.makeMeasureSpec(h, View.MeasureSpec.AT_MOST);
+ view.measure(ww, hh);
 
- Log.d(TAG, "onItemSelected:" + newFocus.getMeasuredWidth()+" w:"+w );
+ ViewGroup vg= (ViewGroup) newFocus.getParent();
+ Log.d(TAG, "onItemSelected:" +vg.getWidth()+" "+ newFocus.getMeasuredWidth()+" w:"+w );
 
 
  if (onItemSelectedListener != null) {

lib/src/main/java/org/evilbinary/tv/widget/BorderView.java

@@ -25,6 +25,7 @@ public class BorderView<X extends View> implements ViewTreeObserver.OnGlobalFocu
  private Effect borderEffect;
 
  private X mView;
+ private View mLastView;
 
  public interface Effect {
  public void onFocusChanged(View target, View oldFocus, View newFocus);
@@ -93,9 +94,12 @@ public void onTouchModeChanged(boolean isInTouchMode) {
 
  @Override
  public void onGlobalFocusChanged(View oldFocus, View newFocus) {
-
+ if(oldFocus==null){
+ oldFocus=mLastView;
+ }
  if (borderEffect != null)
  borderEffect.onFocusChanged(mView, oldFocus, newFocus);
+ mLastView=newFocus;
 
  }