次のような画像ギャラリーを Android で作成しています。
GridlayoutメインレイアウトとLinearlayoutsアイテムとして使用しています。これが私がやっている方法です：
//this is a method that returns a polaroid tile that I add in gridlayout
public LinearLayout ConstructAlbumGridLinearLayout(final int id) {
LinearLayout albumLayout = new LinearLayout(
context.getApplicationContext());
RelativeLayout albumDetailsLayout = new RelativeLayout(
context.getApplicationContext());
TextView albumName = new TextView(context.getApplicationContext());
TextView albumPicturesNumber = new TextView(
context.getApplicationContext());
LinearLayout pictureHolder = new LinearLayout(
context.getApplicationContext());
LinearLayout pictureRowOneHolder = new LinearLayout(
context.getApplicationContext());
LinearLayout pictureRowTwoHolder = new LinearLayout(
context.getApplicationContext());
//this is the line, which throws an exception, even if I do wrap_content
// albumLayout.setLayoutParams(new LayoutParams(100,
// 100));
pictureRowOneHolder.setOrientation(LinearLayout.HORIZONTAL);
pictureRowOneHolder.setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
pictureRowTwoHolder.setOrientation(LinearLayout.HORIZONTAL);
pictureRowTwoHolder.setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
pictureHolder.setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
pictureHolder.setOrientation(LinearLayout.VERTICAL);
albumLayout.setOrientation(LinearLayout.VERTICAL);
albumDetailsLayout.setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
RelativeLayout.LayoutParams rlName = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
rlName.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
albumName.setLayoutParams(rlName);
albumName.setText("Family");
RelativeLayout.LayoutParams rlSize = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
rlSize.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
albumPicturesNumber.setLayoutParams(rlSize);
albumPicturesNumber.setText("3");
for (int j = 0; j < 2; ++j) {
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
30, 30);
ImageView albumPic = new ImageView(context.getApplicationContext());
albumPic.setImageResource(R.drawable.movie1);
albumPic.setLayoutParams(layoutParams);
pictureRowOneHolder.addView(albumPic);
}
for (int j = 0; j < 2; ++j) {
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
30, 30);
ImageView albumPic = new ImageView(context.getApplicationContext());
albumPic.setImageResource(R.drawable.movie1);
albumPic.setLayoutParams(layoutParams);
pictureRowTwoHolder.addView(albumPic);
}
pictureHolder.addView(pictureRowOneHolder);
pictureHolder.addView(pictureRowTwoHolder);
albumDetailsLayout.addView(albumName);
albumDetailsLayout.addView(albumPicturesNumber);
albumLayout.addView(albumDetailsLayout);
albumLayout.addView(pictureHolder);
return albumLayout;
}
次に、このレイアウトをグリッド レイアウトに追加します。
gl.addView(pictureGallery.ConstructAlbumGridLinearLayout(i));
これは私のXML fileです：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:id="@+id/albumLinearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/pictureType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="My Albums"
android:textAppearance="?android:attr/textAppearanceMedium" />
<GridLayout
android:id="@+id/albumMainGrid"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
ここで何が間違っているのかわかりません...それはグリッドレイアウト自体ですか? または、グリッドレイアウトが問題であることが判明している Linearlayout はありますか?
編集 - ここに例外があります:
02-13 20:11:28.250: E/AndroidRuntime(5040): FATAL EXCEPTION: main
02-13 20:11:28.250: E/AndroidRuntime(5040): java.lang.ClassCastException: android.view.ViewGroup$LayoutParams cannot be cast to android.widget.GridLayout$LayoutParams
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.GridLayout.getLayoutParams1(GridLayout.java:729)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.GridLayout.validateLayoutParams(GridLayout.java:663)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.GridLayout.getLayoutParams(GridLayout.java:734)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.GridLayout.measureChildrenWithMargins(GridLayout.java:866)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.GridLayout.onMeasure(GridLayout.java:894)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.View.measure(View.java:12775)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4709)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1385)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.LinearLayout.measureVertical(LinearLayout.java:670)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.LinearLayout.onMeasure(LinearLayout.java:563)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.View.measure(View.java:12775)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4709)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.View.measure(View.java:12775)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.LinearLayout.measureVertical(LinearLayout.java:822)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.LinearLayout.onMeasure(LinearLayout.java:563)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.View.measure(View.java:12775)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4709)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)
02-13 20:11:28.250: E/AndroidRuntime(5040): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2240)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.View.measure(View.java:12775)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1151)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2539)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.os.Handler.dispatchMessage(Handler.java:99)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.os.Looper.loop(Looper.java:137)
02-13 20:11:28.250: E/AndroidRuntime(5040): at android.app.ActivityThread.main(ActivityThread.java:4514)
02-13 20:11:28.250: E/AndroidRuntime(5040): at java.lang.reflect.Method.invokeNative(Native Method)
02-13 20:11:28.250: E/AndroidRuntime(5040): at java.lang.reflect.Method.invoke(Method.java:511)
02-13 20:11:28.250: E/AndroidRuntime(5040): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
02-13 20:11:28.250: E/AndroidRuntime(5040): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
02-13 20:11:28.250: E/AndroidRuntime(5040): at dalvik.system.NativeStart.main(Native Method)