Android之AlertDialog Demo（20190115）
16lz
2022-03-19
Android之AlertDialog Demo（20190115）
android.support.v7.app.AlertDialog 的使用
源码下载：https://github.com/watayouxiang/AlertDialogDemo
简单的AlertDialog
public void showSimpleDialog(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setIcon(R.mipmap.ic_launcher); builder.setTitle("Title"); builder.setMessage("Message"); builder.setNegativeButton("取消", null); builder.setPositiveButton("确定", null); builder.setNeutralButton("中性", null); builder.show();}setView
public void setView(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("Title"); builder.setMessage("Message"); builder.setView(new EditText(this)); builder.setNegativeButton("取消", null); builder.setPositiveButton("确定", null); builder.show();}setSingleChoiceItems
public void setSingleChoiceItems(View view) { final AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("单选列表"); builder.setSingleChoiceItems( new String[]{"11111", "22222", "33333", "44444", "55555"}, 0, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } } ); builder.setNegativeButton("取消", null); builder.setPositiveButton("确定", null); builder.show();}setMultiChoiceItems
public void setMultiChoiceItems(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("多选列表"); builder.setMultiChoiceItems( new String[]{"11111", "22222", "33333", "44444", "55555"}, new boolean[]{false, true, true, false, false}, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { Toast.makeText(mContext, "which " + which + ", isChecked " + isChecked, Toast.LENGTH_SHORT).show(); } } ); builder.setNegativeButton("取消", null); builder.setPositiveButton("确定", null); builder.show();}setItems
public void setItems(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("Title"); builder.setItems( new String[]{"11111", "22222", "33333", "44444", "55555"}, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(mContext, "which " + which, Toast.LENGTH_SHORT).show(); } } ); builder.setNegativeButton("取消", null); builder.setPositiveButton("确定", null); builder.show();}自定义Dialog
public void showMyDialog(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(this); final AlertDialog alertDialog = builder.create(); //取消外部点击隐藏 alertDialog.setCanceledOnTouchOutside(false); //设置取消监听 alertDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { @Override public void onCancel(DialogInterface dialog) { Toast.makeText(mContext, "onCancel", Toast.LENGTH_SHORT).show(); } }); //设置自定义布局 View rootView = getLayoutInflater().inflate(R.layout.view_my_dialog, null); rootView.findViewById(R.id.tv_cancel).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { alertDialog.cancel(); } }); alertDialog.setView(rootView); alertDialog.show(); //设置弹窗参数（注意：弹窗样式修改必须在 dialog.show() 方法后调用，否则不生效） Window window = alertDialog.getWindow(); if (window != null) { window.setGravity(Gravity.CENTER); window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT); //dialog即使没有设置四周的margin也有margin，可以设置给dialog设置个background来解决 window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); //宽度为屏幕宽度的80% WindowManager.LayoutParams params = window.getAttributes(); params.width = (int) (getWindowManager().getDefaultDisplay().getWidth() * 0.8f); window.setAttributes(params); }}view_my_dialog.xml
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