アプリを作るうえで、解像度に対応させる為に人によってやり方が異なると思います。
僕が作っている方法はタブレットやスマートフォンに対して同じ比率で文字が表示できるようにしていて、他の方のリファレンスなどとは異なる事が多いので参考程度にみてみてください。
MainActivity
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
WindowData.init(getApplicationContext(),getWindowManager());
Util.callLog("MainActivity:onCreate");
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Page1Fragment frag1 = new Page1Fragment();
fragmentTransaction.replace(R.id.frag, frag1);
fragmentTransaction.commit();
}
layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/frag"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"></LinearLayout>
</LinearLayout>
Page1Fragment
public class Page1Fragment extends Fragment implements BaseFragment{
private View rootView;
private CallbackFunction callback;
private Boolean finishFlag;
private Handler mHandler;
public Page1Fragment() {
Util.callLog("CONSTRUCTOR:" + this.getClass().getCanonicalName());
finishFlag = false;
}
public void setOnCallbackFunction(CallbackFunction _callback) {
callback = _callback;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
Util.callLog("CREATE:" + this.getClass().getCanonicalName());
rootView = inflater.inflate(R.layout.fragment_page1, container, false);
rootView.setClickable(true);
mHandler = new Handler();
AlphaAnimation aa = new AlphaAnimation(0f,1f);
aa.setDuration(600);
rootView.startAnimation(aa);
return rootView;
}
@Override
public void callFinish(BaseCallback callback) {
Util.callLog("CALLFinish:" + this.getClass().getCanonicalName());
if (finishFlag) {
return;
}
finishFlag = true;
callback.callbackFunction();
}
@Override
public void onDestroy() {
Util.callLog("DESTROY:" + this.getClass().getCanonicalName());
rootView = null;
callback = null;
super.onDestroy();
}
public interface CallbackFunction {
//BASEの方からこのfragmentを取り外してもらう用に用意しておく。
public void callbackFinish();
}
}
BaseFragment
public interface BaseFragment {
/*
フラグメントを削除する時にアニメーションさせる。
*/
void callFinish(BaseCallback callback);
interface BaseCallback{
void callbackFunction();
}
}
fragment layout
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="yaya.tokyo.templateandroid.Page1Fragment">
<!-- TODO: Update blank fragment layout -->
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/hello_blank_fragment" />
<ImageView
android:id="@+id/hello"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
WindowData
public class WindowData {
private static final float baseSize = 750f;
public static int height;
public static int width;
public static float scale;
public static Matrix matrix;
public static AssetManager amanager;
public static void init(Context cntxt,WindowManager wm){
DisplayMetrics displaymetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(displaymetrics);
height = displaymetrics.heightPixels;//-getStatusBarHeight(cntxt);
width = displaymetrics.widthPixels;
scale = (float) displaymetrics.widthPixels / baseSize;
matrix = new Matrix();
matrix.postScale(WindowData.scale, WindowData.scale);
amanager = cntxt.getAssets();
}
public static int getStatusBarHeight(Context cntxt) {
int result = 0;
int resourceId = cntxt.getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resourceId > 0) {
result = cntxt.getResources().getDimensionPixelSize(resourceId);
}
return result;
}
}
Util
public class Util {
public static void callLog(String log){
if(GlobalData.DEBUG_MODE) {
Log.e(GlobalData.app_name, log);
}
}
public static void callLog(int log){
if(GlobalData.DEBUG_MODE) {
Log.e(GlobalData.app_name, "INTEGER:"+log);
}
}
public static void callLog(float log){
if(GlobalData.DEBUG_MODE) {
Log.e(GlobalData.app_name, "FLOAT:"+log);
}
}
public static Bitmap loadBitmapFromAssetRow(Context context,String url) {
Bitmap bm = null;
try {
bm = loadBitmapFromAssetRowFunc(context,url);
} catch (Exception e) {
} catch (Error e) {}
if(bm == null){
System.gc();
try {
bm = loadBitmapFromAssetRowFunc(context,url);
} catch (Exception e) {
} catch (Error e) {}
}
if(bm == null){
bm = Util.loadBitmapFromAsset(context, "null.png");
}
return bm;
}
public static Bitmap loadBitmapFromAsset(Context context,String url) {
Bitmap bm = null;
if(bm == null){
try {
bm = loadBitmapFromAssetFunc(context,url,true);
} catch (Exception e) {}
}
if(bm == null){
System.gc();
try {
bm = loadBitmapFromAssetFunc(context,url,true);
} catch (Exception e) {}
}
if(bm == null){
bm = Util.loadBitmapFromAsset(context, "null.png");
}
return bm;
}
private static BitmapFactory.Options options;
public static Bitmap loadBitmapFromAssetFunc(Context context,String url,Boolean resize) {
byte[] w = new byte[1024];
Bitmap _bitmap;
BufferedInputStream buf;
FileInputStream in;
BufferedInputStream binput;
ByteArrayOutputStream out;
if(options != null){
options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.RGB_565;
options.inPurgeable = true;
}
_bitmap = null;
if(resize){
try {
buf = new BufferedInputStream(WindowData.amanager.open(url), 8192);
_bitmap = BitmapFactory.decodeStream(buf,null,options);
buf.close();
buf = null;
} catch (Exception e) {}
}
if(_bitmap == null){
try {
in = context.openFileInput(url.replace("/", "__"));
binput = new BufferedInputStream(in);
out = new ByteArrayOutputStream();
while (binput.read(w) >= 0) {
out.write(w, 0, 1024);
}
byte[] byteData = out.toByteArray();
_bitmap = BitmapFactory.decodeByteArray(byteData, 0, byteData.length);
in.close();
binput.close();
out.close();
} catch (Exception e) {
}finally{
in = null;
binput = null;
out = null;
}
}
if(_bitmap == null){
return null;
}
if(resize){
Bitmap data = Bitmap.createBitmap(_bitmap, 0, 0,_bitmap.getWidth(), _bitmap.getHeight(), WindowData.matrix, true);
_bitmap = null;
return data;
}else{
return _bitmap;
}
}
public static Bitmap loadBitmapFromAssetRowFunc(Context context,String url) {
if(options != null){
options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.RGB_565;
options.inPurgeable = true;
}
Bitmap __bitmap = null;
byte[] __w = new byte[1024];
try {
BufferedInputStream __buf = new BufferedInputStream(WindowData.amanager.open(url), 8192);
__bitmap = BitmapFactory.decodeStream(__buf, null, options);
__buf.close();
__buf = null;
} catch (Exception e) {
}
if(__bitmap == null){
FileInputStream __in;
BufferedInputStream __binput;
ByteArrayOutputStream __out;
try {
__in = context.openFileInput(url.replace("/", "__"));
__binput = new BufferedInputStream(__in);
__out = new ByteArrayOutputStream();
while (__binput.read(__w) >= 0) {
__out.write(__w, 0, 1024);
}
byte[] byteData = __out.toByteArray();
__bitmap = BitmapFactory.decodeByteArray(byteData, 0, byteData.length);
__in.close();
__binput.close();
__out.close();
} catch (Exception e) {
}finally{
__in = null;
__binput = null;
__out = null;
}
}
if(__bitmap == null){
return null;
}
return __bitmap;
}
}
GlobalData
public class GlobalData {
//STATIC
public static final Boolean DEBUG_MODE = false;
public static final String app_name = "TEMPLATE";
}
SimpleAnimationListener
public class SimpleAnimationListener implements Animation.AnimationListener{
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
}
@Override
public void onAnimationRepeat(Animation animation) {
}
}
割とガチで使ってるテンプレート
