懸浮對話方塊的實現，懸浮對話方塊實現

懸浮對話方塊的實現，懸浮對話方塊實現

直接上代碼：

    private void setDialog(){        View view = getLayoutInflater().inflate(R.layout.dialog_country, null);        mDialog = new Dialog(this);        mDialog.setContentView(view, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));        Window window = mDialog.getWindow();        WindowManager.LayoutParams wl = window.getAttributes();        wl.x = 0;        wl.y = getWindowManager().getDefaultDisplay().getHeight();        wl.width = ViewGroup.LayoutParams.MATCH_PARENT;        wl.height = ViewGroup.LayoutParams.WRAP_CONTENT;        mDialog.onWindowAttributesChanged(wl);        mDialog.setCanceledOnTouchOutside(true);        mDialog.show();                Button btnChina = (Button) view.findViewById(R.id.btnChina);        Button btnUSA = (Button) view.findViewById(R.id.btnUSA);        Button btnUK = (Button) view.findViewById(R.id.btnUK);        Button btnCancel = (Button) view.findViewById(R.id.btnCancel);                btnChina.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                mQuery.id(R.id.btnCountry).getTextView().setText("China");                mDialog.dismiss();            }                    });        btnUSA.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                mQuery.id(R.id.btnCountry).getTextView().setText("USA");                mDialog.dismiss();            }                    });        btnUK.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                mQuery.id(R.id.btnCountry).getTextView().setText("UK");                mDialog.dismiss();            }                    });        btnCancel.setOnClickListener(new OnClickListener(){            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                mDialog.dismiss();            }                    });    }

首先inflate一個xml檔案，產生一個view；再建立一個Dialog，設定Dialog的View為inflate的view；然後通過WindowManager.LayoutParams設定Dialog的長度、寬度、顯示的位置等等，最後setCanceledOnTouchOutside(true)，點擊其他地方可以退出Dialog。運行效果如下：