如何在Android中以像素为单位获取屏幕尺寸

#1 楼

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;

WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();

Display display = getWindowManager().getDefaultDisplay(); 
int width = display.getWidth();  // deprecated
int height = display.getHeight();  // deprecated

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);

Log.d("ApplicationTagName", "Display width in px is " + metrics.widthPixels);

final WindowMetrics metrics = windowManager.getCurrentWindowMetrics();
 // Gets all excluding insets
 final WindowInsets windowInsets = metrics.getWindowInsets();
 Insets insets = windowInsets.getInsetsIgnoreVisibility(WindowInsets.Type.navigationBars()
         | WindowInsets.Type.displayCutout());

 int insetsWidth = insets.right + insets.left;
 int insetsHeight = insets.top + insets.bottom;

 // Legacy size that Display#getSize reports
 final Rect bounds = metrics.getBounds();
 final Size legacySize = new Size(bounds.width() - insetsWidth,
         bounds.height() - insetsHeight);

#2 楼

Display display = getWindowManager().getDefaultDisplay(); 
int width = display.getWidth();
int height = display.getHeight();

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
      
int height = metrics.heightPixels;
int width = metrics.widthPixels;

final WindowMetrics metrics = windowManager.getCurrentWindowMetrics();
 // Gets all excluding insets
 final WindowInsets windowInsets = metrics.getWindowInsets();
 Insets insets = windowInsets.getInsetsIgnoreVisibility(WindowInsets.Type.navigationBars()
         | WindowInsets.Type.displayCutout());

 int insetsWidth = insets.right + insets.left;
 int insetsHeight = insets.top + insets.bottom;

 // Legacy size that Display#getSize reports
 final Rect bounds = metrics.getBounds();
 final Size legacySize = new Size(bounds.width() - insetsWidth,
         bounds.height() - insetsHeight);

#3 楼

#4 楼

int measuredWidth = 0;
int measuredHeight = 0;
WindowManager w = getWindowManager();

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
    Point size = new Point();
    w.getDefaultDisplay().getSize(size);
    measuredWidth = size.x;
    measuredHeight = size.y;
} else {
    Display d = w.getDefaultDisplay();
    measuredWidth = d.getWidth();
    measuredHeight = d.getHeight();
}

#5 楼

#6 楼

 int screenHeight = getResources().getDisplayMetrics().heightPixels;
 int screenWidth = getResources().getDisplayMetrics().widthPixels; 

#7 楼

int resId = getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resId > 0) {
    result = getResources().getDimensionPixelSize(resId);
}

result给出像素的高度。
要快速访问

有关Title bar，Navigation bar和Content View的高度的更多信息，请查看Android设备屏幕尺寸。

评论

---

正是我需要的！ getResources（）。getDisplayMetrics（）。heightPixels +结果给出实际的全屏高度。 DraganMarjanović的答案也有效，但我更喜欢这种更短，更简单的解决方案。

–米歇尔
2015年11月14日15:35

---

从Android Marshmallow开始，这种方法已经过时了。状态栏的高度可以从设备或Android版本更改。最好使用OnApplyWindowInsetsListener。

–海因里希
16-2-21在13:20

---

#8 楼

#9 楼

public static int getWidth(Context mContext){
    int width=0;
    WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
    Display display = wm.getDefaultDisplay();
    if(Build.VERSION.SDK_INT>12){
        Point size = new Point();
        display.getSize(size);
        width = size.x;
    }
    else{
        width = display.getWidth();  // Deprecated
    }
    return width;
}

public static int getHeight(Context mContext){
    int height=0;
    WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
    Display display = wm.getDefaultDisplay();
    if(Build.VERSION.SDK_INT>12){
        Point size = new Point();
        display.getSize(size);
        height = size.y;
    }
    else{
        height = display.getHeight();  // Deprecated
    }
    return height;
}

#10 楼

<LinearLayout android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <Button android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight=".25"
        android:text="somebutton">

    <TextView android:layout_width="fill_parent"
        android:layout_height="Wrap_content"
        android:layout_weight=".75">
</LinearLayout>

#11 楼

// `activity` is an instance of Activity class.
Display display = activity.getWindowManager().getDefaultDisplay();
Point screen = new Point();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
    display.getSize(screen);
} else {            
    screen.x = display.getWidth();
    screen.y = display.getHeight();
}

#12 楼

public void getScreenInfo(){
    DisplayMetrics metrics = new DisplayMetrics();
    getActivity().getWindowManager().getDefaultDisplay().getMetrics(metrics);

    heightPixels = metrics.heightPixels;
    widthPixels = metrics.widthPixels;
    density = metrics.density;
    densityDpi = metrics.densityDpi;
}

#13 楼

#14 楼

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int height = metrics.heightPixels;
int wwidth = metrics.widthPixels;

#15 楼

width = getWindowManager().getDefaultDisplay().getWidth();
height = getWindowManager().getDefaultDisplay().getHeight();

// New width and height
int version = android.os.Build.VERSION.SDK_INT;
Log.i("", " name == "+ version);
Display display = getWindowManager().getDefaultDisplay();
int width;
if (version >= 13) {
    Point size = new Point();
    display.getSize(size);
    width = size.x;
    Log.i("width", "if =>" +width);
}
else {
    width = display.getWidth();
    Log.i("width", "else =>" +width);
}

#16 楼

DisplayMetrics dimension = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dimension);
int w = dimension.widthPixels;
int h = dimension.heightPixels;

#17 楼

Rect dim = new Rect();
getWindowVisibleDisplayFrame(dim);

#18 楼

#19 楼

public class AndroidScreenActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        DisplayMetrics dm = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(dm);
        String str_ScreenSize = "The Android Screen is: "
                                   + dm.widthPixels
                                   + " x "
                                   + dm.heightPixels;

        TextView mScreenSize = (TextView) findViewById(R.id.strScreenSize);
        mScreenSize.setText(str_ScreenSize);
    }
}

#20 楼

DisplayMetrics displayMetrics = new DisplayMetrics();
if (context != null) 
      WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
      Display defaultDisplay = windowManager.getDefaultDisplay();
      defaultDisplay.getRealMetrics(displayMetrics);
    }

int width  =displayMetrics.widthPixels;
int height =displayMetrics.heightPixels;

#21 楼

    DisplayMetrics displayMetrics = Resources.getSystem().getDisplayMetrics();
    int dpHeight = (int)(displayMetrics.heightPixels / displayMetrics.density + 0.5);
    int dpWidth = (int)(displayMetrics.widthPixels / displayMetrics.density + 0.5);

#22 楼

getResources().getDisplayMetrics().heightPixels;

getResources().getDisplayMetrics().widthPixels; 

#23 楼

 // initialize the DisplayMetrics object
 DisplayMetrics deviceDisplayMetrics = new DisplayMetrics();

 // populate the DisplayMetrics object with the display characteristics
 getWindowManager().getDefaultDisplay().getMetrics(deviceDisplayMetrics);

 // get the width and height
 screenWidth = deviceDisplayMetrics.widthPixels;
 screenHeight = deviceDisplayMetrics.heightPixels;

#24 楼

@SuppressLint("NewApi")
public static Point getScreenSize(Activity a) {
    Point size = new Point();
    Display d = a.getWindowManager().getDefaultDisplay();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        d.getSize(size);
    } else {
        size.x = d.getWidth();
        size.y = d.getHeight();
    }
    return size;
}

#25 楼

DisplayMetrics dm = getResources().getDisplayMetrics();
float screen_w = dm.widthPixels;
float screen_h = dm.heightPixels;

int resId = getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resId > 0) {
    screen_h -= getResources().getDimensionPixelSize(resId);
}

TypedValue typedValue = new TypedValue();
if(getTheme().resolveAttribute(android.R.attr.actionBarSize, typedValue, true)){
    screen_h -= getResources().getDimensionPixelSize(typedValue.resourceId);
}

#26 楼

setContentView(R.layout.main);      
Display display = getWindowManager().getDefaultDisplay();
final int width = (display.getWidth());
final int height = (display.getHeight());

#27 楼

public static int getWidthScreen(Context context) {
    return getDisplayMetrics(context).widthPixels;
}

public static int getHeightScreen(Context context) {
    return getDisplayMetrics(context).heightPixels;
}

private static DisplayMetrics getDisplayMetrics(Context context) {
    DisplayMetrics displayMetrics = new DisplayMetrics();
    WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    wm.getDefaultDisplay().getMetrics(displayMetrics);
    return displayMetrics;
}

#28 楼

fun getScreenHeight(activity: Activity): Int {
    val metrics = DisplayMetrics()
    activity.windowManager.defaultDisplay.getMetrics(metrics)
    return metrics.heightPixels
}

fun getScreenWidth(activity: Activity): Int {
    val metrics = DisplayMetrics()
    activity.windowManager.defaultDisplay.getMetrics(metrics)
    return metrics.widthPixels
}

#29 楼

public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        startActivityForResult(new Intent(this, Measure.class), 1);
        // Return without setting the layout, that will be done in onActivityResult.
    }

    @Override
    protected void onActivityResult (int requestCode, int resultCode, Intent data) {
        // Probably can never happen, but just in case.
        if (resultCode == RESULT_CANCELED) {
            finish();
            return;
        }
        int width = data.getIntExtra("Width", -1);
        // Width is now set to the precise available width, and a layout can now be created.            ...
    }
}

public final class Measure extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
       // Create a LinearLayout with a MeasureFrameLayout in it.
        // Just putting a subclass of LinearLayout in works fine, but to future proof things, I do it this way.
        LinearLayout linearLayout = new LinearLayout(this);
        LinearLayout.LayoutParams matchParent = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
        MeasureFrameLayout measureFrameLayout = new MeasureFrameLayout(this);
        measureFrameLayout.setLayoutParams(matchParent);
        linearLayout.addView(measureFrameLayout);
        this.addContentView(linearLayout, matchParent);
        // measureFrameLayout will now request this second activity to finish, sending back the width.
    }

    class MeasureFrameLayout extends FrameLayout {
        boolean finished = false;
        public MeasureFrameLayout(Context context) {
            super(context);
        }

        @SuppressLint("DrawAllocation")
        @Override
        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
            if (finished) {
                return;
            }
            finished = true;
            // Send the width back as the result.
            Intent data = new Intent().putExtra("Width", MeasureSpec.getSize(widthMeasureSpec));
            Measure.this.setResult(Activity.RESULT_OK, data);
            // Tell this activity to finish, so the result is passed back.
            Measure.this.finish();
        }
    }
}

public class MainActivity extends Activity {
    static Activity measuringActivity;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        Bundle extras = getIntent().getExtras();
        if (extras == null) {
            extras = new Bundle();
        }
        int width = extras.getInt("Width", -2);
        if (width == -2) {
            // First time in, just start another copy of this activity.
            extras.putInt("Width", -1);
            startActivityForResult(new Intent(this, MainActivity.class).putExtras(extras), 1);
            // Return without setting the layout, that will be done in onActivityResult.
            return;
        }
        if (width == -1) {
            // Second time in, here is where the measurement takes place.
            // Create a LinearLayout with a MeasureFrameLayout in it.
            // Just putting a subclass of LinearLayout in works fine, but to future proof things, I do it this way.
            LinearLayout linearLayout = new LinearLayout(measuringActivity = this);
            LinearLayout.LayoutParams matchParent = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
            MeasureFrameLayout measureFrameLayout = new MeasureFrameLayout(this);
            measureFrameLayout.setLayoutParams(matchParent);
            linearLayout.addView(measureFrameLayout);
            this.addContentView(linearLayout, matchParent);
            // measureFrameLayout will now request this second activity to finish, sending back the width.
        }
    }

    @Override
    protected void onActivityResult (int requestCode, int resultCode, Intent data) {
        // Probably can never happen, but just in case.
        if (resultCode == RESULT_CANCELED) {
            finish();
            return;
        }
        int width = data.getIntExtra("Width", -3);
        // Width is now set to the precise available width, and a layout can now be created. 
        ...
    }

class MeasureFrameLayout extends FrameLayout {
    boolean finished = false;
    public MeasureFrameLayout(Context context) {
        super(context);
    }

    @SuppressLint("DrawAllocation")
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        if (finished) {
            return;
        }
        finished = true;
        // Send the width back as the result.
        Intent data = new Intent().putExtra("Width", MeasureSpec.getSize(widthMeasureSpec));
        MainActivity.measuringActivity.setResult(Activity.RESULT_OK, data);
        // Tell the (second) activity to finish.
        MainActivity.measuringActivity.finish();
    }
}    

#30 楼

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/entireLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >