gistfile1.java

package com.example.samplescrollview;

import android.app.Activity;
import android.content.Context;
import android.graphics.Point;
import android.graphics.Rect;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.Menu;
import android.view.View;
import android.view.WindowManager;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //
        WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
        // ディスプレイのインスタンス生成
        Display disp = wm.getDefaultDisplay();
        Log.d("hashizume", disp.getHeight() + ":" + disp.getWidth());
    }

    /**
     * 画面の高さを出す 対象レイヤーの高さを出す（LinerLayoutだからいつやるべきか？） 対象レイヤーのマージンでずらす
     */

    public void onImageClick(View view) {
        View item = findViewById(R.id.item);
        if (item.getVisibility() == View.GONE) {
            item.setVisibility(View.INVISIBLE);
        } else if (findViewById(R.id.item).getVisibility() == View.INVISIBLE) {
            item.setVisibility(View.VISIBLE);
        } else {
            item.setVisibility(View.GONE);
        }

        Log.d("hashizume", findViewById(R.id.out).getBottom() + ":"
                + findViewById(R.id.out).getHeight());
        Log.d("hashizume", findViewById(R.id.scrollView).getBottom() + ":"
                + findViewById(R.id.scrollView).getHeight());
        Log.d("hashizume", findViewById(R.id.main).getBottom() + ":"
                + findViewById(R.id.main).getHeight());

        WindowManager wm = (WindowManager) getApplicationContext().getSystemService(
                Context.WINDOW_SERVICE);
        Display display = wm.getDefaultDisplay();
        DisplayMetrics displayMetrics = new DisplayMetrics();
        display.getMetrics(displayMetrics);

        Log.v("widthPixels", String.valueOf(displayMetrics.widthPixels));
        Log.v("heightPixels", String.valueOf(displayMetrics.heightPixels));
        Log.v("xdpi", String.valueOf(displayMetrics.xdpi));
        Log.v("ydpi", String.valueOf(displayMetrics.ydpi));
        Log.v("density", String.valueOf(displayMetrics.density));
        Log.v("scaledDensity", String.valueOf(displayMetrics.scaledDensity));

        Log.v("width", String.valueOf(display.getWidth())); // 非推奨
        Log.v("height", String.valueOf(display.getHeight())); // 非推奨
        Log.v("orientation", String.valueOf(display.getOrientation())); // 非推奨
        Log.v("refreshRate", String.valueOf(display.getRefreshRate()));
        Log.v("pixelFormat", String.valueOf(display.getPixelFormat()));
        Log.v("rotation", String.valueOf(display.getRotation()));

        // ここでステータスバーの高さが分かる
        Rect rectgle = new Rect();
        getWindow().getDecorView().getWindowVisibleDisplayFrame(rectgle);
        int statusBarHeight = rectgle.top;
        Log.d("hashizume", rectgle.bottom + ":" + statusBarHeight);

        Point real = new Point(0, 0);

        // Android 4.2以上
        display.getRealSize(real);
        android.util.Log.d("hashizume", rectgle.bottom + ":" + real.y);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}