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| public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private boolean[] checkItems;
private AlertDialog alert = null;
private AlertDialog.Builder builder = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.btn1).setOnClickListener(this);
findViewById(R.id.btn2).setOnClickListener(this);
findViewById(R.id.btn3).setOnClickListener(this);
findViewById(R.id.btn4).setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn1:
alert = null;
builder = new AlertDialog.Builder(MainActivity.this);
alert = builder.setIcon(R.mipmap.ic_launcher_round)
.setTitle("Tip")
.setMessage("你收到了一首特别诗，要看吗？")
.setNegativeButton("不要", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "Canceled.", Toast.LENGTH_SHORT).show();
}
})
.setPositiveButton("当然", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "\"Get out of my head.Get out of my head.Get out of my head.Get out of my head.\nGet\nout\nof\nmy\nhead\"", Toast.LENGTH_SHORT).show();
}
})
.setNeutralButton("忽略", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "Nothing happened.", Toast.LENGTH_SHORT).show();
}
}).create();
alert.show();
break;
case R.id.btn2:
final String[] members = new String[]{"Sayori", "Natsuki", "Yuri", "Monika"};
alert = null;
builder = new AlertDialog.Builder(MainActivity.this);
alert = builder.setIcon(R.mipmap.ic_launcher_round)
.setTitle("要把诗给谁看呢")
.setItems(members, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "你把诗给了" + members[which], Toast.LENGTH_SHORT).show();
}
}).create();
alert.show();
break;
case R.id.btn3:
final String[] fruits = new String[]{"Monika", "M nika", "M?nIkA", "mONiKA", " o ika"};
alert = null;
builder = new AlertDialog.Builder(MainActivity.this);
alert = builder.setIcon(R.mipmap.ic_launcher_round)
.setTitle("周日你将会和谁进行社团活动呢")
.setSingleChoiceItems(fruits, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "你选择了" + fruits[which], Toast.LENGTH_SHORT).show();
}
}).create();
alert.show();
break;
case R.id.btn4:
final String[] menu = new String[]{"Monika", "Sayori", "Natsuki", "Yuri"};
checkItems = new boolean[]{false, false, false, false};
alert = null;
builder = new AlertDialog.Builder(MainActivity.this);
alert = builder.setIcon(R.mipmap.ic_launcher_round)
.setTitle("来吧，像个大人一样做出选择")
.setMultiChoiceItems(menu, checkItems, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
checkItems[which] = isChecked;
}
})
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String result = "";
for (int i = 0; i < checkItems.length; i++) {
if (checkItems[i])
result += menu[i] + " ";
}
Toast.makeText(getApplicationContext(), "这些我全都要 " + result, Toast.LENGTH_SHORT).show();
}
})
.create();
alert.show();
break;
}
}
}
|
