How to set gallery starts from left corner?

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/*              * A structure describing general information about a display, such as              * its size, density, and font scaling.To access the DisplayMetrics              * members, initialize an object like this:              */               DisplayMetrics metrics = new DisplayMetrics();             getWindowManager().getDefaultDisplay().getMetrics(metrics);               Gallery g = (Gallery) findViewById(R.id.gallery);               // set gallery to left side             MarginLayoutParams mlp = (MarginLayoutParams) g.getLayoutParams();             mlp.setMargins(-(metrics.widthPixels / 2 + (imageWidth/2)), mlp.topMargin,                         mlp.rightMargin, mlp.bottomMargin);

            

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